@Keptonrae Pingmi 6. 9.17........A call at 3:00pm, no message left. Following day 12:00pm, l picked up out of curiosity. BUT SAID NOTHING, not even "Hello". The caller said nothing. It was a Mexican stand off of SILENCE. I wasn't going to let IT know whether l am OLD, FEMALE, young, classy, stupid or allow IT to build any form of picture. You can tell a lot by a persons voice and their usage of language. Eventually, IT just hung up after 1 full minute of silence. LET IT GO THROUGH TO MESSAGE BANK FOLKS..... The world is full of shady sorts.
All jokes aside, it's shockingly impressive how well informed and well educated Linus is on this stuff.. like I know it's his job, but I still find it impressive, excellent video, learned a lot.
If you wanna know how "high tech" my school is, I was walking down a hallway and found a single piece of laptop ram (4gb), so I put it in my laptop and it worked.
my school has a server with 2, 2016 Xeon that are around 2000-3000$ each and apparently no GPU ( i could'nt run GPU-Z and i found nothing in dxdiag (when you have to work on a project but all you care about is specs)
@@mephInc and here I was thinking i'd get 2x8GB now, and put another 2x8GB in, in two years time. Now I find out that even if I buy an IDENTICAL kit from the same manufacturer I've probably only got a 50% chance of it actually working. I mean WHAT DA FUCK?! industry...
Oh I feel your pain! I just brought an old notebook pc back to life and upgraded the OP from Win.7 to Win.10 and was about to buy a SSD drive for it. Being a 32bit system, I thought about changing it to 64bit so that I could get more RAM than the 4Gb maximum it’s allowed so far. Big problem with that though. The RAM slots are DDR2 and getting 2 chips higher than 2Gb each chip, is bloody difficult! I wanted 16Gb in total at least. But even finding 2 X 4Gb chips is murder. Then I found them but they were over £200! For 8Gb RAM total?! No chance! I might still get the SSD drive, but it doesn’t seem as good an idea now as it first appeared. Graphics is integrated too. But it really gets my dandruff up...I mean, dander up, that DDR2 RAM is dearer than DDR3 or DDR4.
Donkey Kong The sticks are graded for timing and matched for speed. At the speeds that these memory sticks run at, there can be timing differences that make it unstable. This happens if, for example, the setup or hold times are slightly off between two sticks. Those times can be measured at the factory by a test rig and then sticks that match are grouped together. The most pessimism lack of matching could easily make timing differences bad enough that one stick’s data is going away (fast) just as another stick’s is just getting out there (slow). The times are in the order of 0.3 nanoseconds or so.
Old English: I have sixteen thousand megabytes in a dual channel configuration of eight thousand megabytes each of Corsair Vengeance Professional clocked at one thousand eight hundred and sixty-six megahertz and is double data rate three random access memory in my personal computer. Modern English: I got 16Gb 2x8 Corsair Vengeance Pro 1866MHz DDR3 RAM in my PC.
Thanks for the video, very informative! I have a question: Is there anything wrong with installing 2x 8GB sticks in my dual-channel slots, and then 1x 8GB in one of the remaining channels? Or will this cause issues?
Ty for the great explanation because I had problems with my computer getting blue screens to can't work at all from installing the wrong ram stick on the bandwidth slot. Now it works better after taking the stick out
As mentioned in the video, the slots that work together are colour coded, so if you put another Dual channel kit in the other slots, they should work correctly. In an ideal world, get another of the same dual channel kits, this should ensure compatibility, if they are different but the same spec, normally it's ok, if they are different spec you could get lucky by setting all of the memory to the slowest timings. Normally it works, but sometimes it will drop down to single channel mode.
Ive populated my memory board with mixed and matched sticks ( 7gb all from Crucial) Same configuration used in two unique machines: System A. AMD FX 8320 Gigabyte - 78LMT AM3+ System B. i7 920 - MSI - X58 Socket 1366 7GB - total 2x2gb 1333 1x 1gb 1066 1x 2gb 1066 (all timings were identical and bought months apart) System stable, no crashes, all ran Correctly in Dual (AMD) and Triple (Intel) channel modes... Was even able to overclock the machines AMD to 4.0 ghz and Intel i7 920 to 3.4 GHZ - Cool and still fully stable. Maybe just lucky in my case, both times. I stand by Crucial Memory for this reason, Ive never had a dead stick or an issue with them, ever.
quad channel memory is for high end high price desktop computers, and he talks about it all the video long like is normal, when you will see quad channel memory in 5% of all home desktop computers. so esentially he made a video for 5% of total audience. good job
Thanks for this video. I thought I understood RAM, but there was a lot I learned from this video. I have an ASUS X58 MOBO acquired in 2010. It came with 3 sticks of 2 GB RAM. I "Upgraded" it by purchasing 1 stick of 4 GB ram and have had stability issues for years that I could not diagnose. I've since purchased 2 more of the same model 4 GB ram and my stability issues seem to have evaporated!
Question to Everyone with an Example: If I want to buy 16GB of RAM, should I buy 2x8GB RAM at once (2 sticks in the same package(Kit of 2)), or I could by 1x8GB + 1x8GB the exact -same- module RAM (Single Module x 2)? If you didnt understand what I'm talking about then: I'm about to buy a new PC and the problem is the RAM. I'll buy 16GB, DDR4, 2666mhz. To be more specific, this is the model "HX426C13PB3/8". I want to buy HyperX Predator, but there is not "package" with 2x8GB (as the photo at 0:29) but only 1x8GB. So there is not any available option in my country with Kit of 2. There is only the option of 1x8GB HyperX Predator, 2666mhz. ►And the Question is: Is there any problem to buy the SAME RAME 2 times (2x8GB)? Thank you in advance.
MAKE A QUICK AS POSSIBLE ON OVERCLOCKING CPUS. a video for each cpu brand. make a basic guide on setting multiplier, and looking to see if your board comes with auto overclocking, and perhaps prigrams to see temps.
I once added in an extra mis-matched RAM stick(when I didn't know much about computers) and it prevented the PC from even starting up until it was removed.
I know a decent amount when it comes to computer hardware, but to be honest, I knew next to nothing when it came to RAM; but this has changed that, extremely well done very informitive, and overal probably the best video I've seen from you Linus! Cheers!
If I buy now a single let's say 8GB Vengeance 1600 Mhz stick and after some months I decide to upgrade and get another exact same RAM will they work together? Becuase they're not paired kits as he said and I am kinda confused here. Anyone can answer me?
stelios, provided u get the exact same model ram there most likely wont be an issue. however like he was saying in the video, there can be random problems that occur and if you can avoid it its best to buy them in the same kit. 8GB ram is all u really need for gaming / general use anyways.
+Stephen Sexton Linus answered this very question in the video. Technicall either will work... most of the time, however the bios will recognize the timings the manufacturer recommends for the ram based on the the number of dims it is selling as a kit.. (so if it is selling 2 sticks of ram, it is best for a dual channel config, if it is 4 then a quad channel. As long as that matches up you can safely assume everything will go as planned 100%) Chances are that if you put 4x4 in dual, you will be fine, but there is a chance the timings will not quite match up to optimal, which could cause a stability issue. So that being said, to be 100% sure it would be best to check to see how many channels your motherboard supports (most support 2, really cheap, like lowest of the low, support 1, some super boards support 3+) and then get the same number of sticks as your channels, so if it is dual channel, get 2 sticks. So that can be 2X4 2x8 or 2xwhatever. I put 4 sticks of 8 in my dual channel board and I did actually have some concerns about the timings, but really have no way to find out if there is any true issue as there are just so many timings and my computer is running fine as far as i can tell.... however.... I can not tell if it is running in dual or if it is being reduced to single. Something I will have to look into better when I get the chance. Now all things considered, if I find out there is an issue all I will likely have to do is manually set each individual timing in the bios, which my bios does allow me to do (i swear there is like 50 timings) to the right spec, assuming I can figure that out, and things will likely be fine./
I have two dual-channel memory kits; they were made by the same manufacturer and had the same capacity, but they have different heat-sinks so I assume their internals weren’t a complete match. No matter what configuration I put them in on my dual-channel motherboard, they would cause Windows to crash to a blue screen during performance-intensive tasks. There was a good period of time when I was running a flaky system, until eventually I tossed one stick out, and now my blue screens are rarer than a blue moon. I concluded that there was a bad port on the motherboard, since every stick of RAM operated just fine on its own during diagnostics. I’m currently running a 2:1 3×2GB setup, which is stable, but it really bugs me that I can’t bump it up a little more with that lone 2GB stick.
Hey Linus :) Well i firstly want to say thank you for helping me with all your "Fast As Possible" Videos really taught me a lot of things!!! I was wondering since you said that you should have the same memory in order for it to run at their max performance i was wondering if you could just tell me does it matter in which memory slots you insert the memory? Like i've seen people keep spaces open inbetween their memory when they have 16 2x8Gb. Well i'm building a new PC for myself and this would be the specs MSI Z97 Gaming Motherboard 5 Intel Core i7 4790k 4Ghz and Corsair Vengance 16Gb 2x8gb 1600Mhz and just wanted to make sure how to insert the RAM Correctly and if spaces in between made a difference in performance Such as Dual Channle or Single Channle
Fun fact that I've experienced. When buying two single channels kits, usually work in dual channel, as long as the part numbers and timings are the same. In other words, two single channel kits with Micron E die, or Samsung B die rated with the same speeds and latency. I don't mean match the Samsung ram with Micron, no. Stay in the same chip family and properties. If you get two separate kits, with differing Frequency and Timings, use the settings for the worst kit for them to function.
My friend and I are having a discussion over RAM channeling. I am saying that on a dual channel board, if you fill all 4 slots - it reduces the memory speed to single channel mode. He is saying that the memory stays in dual channel mode with all 4 slots filled. Both he and I are using AMD motherboards, AM3+ sockets. He with and AMD 8350 and me with an AMD 8320. Both our boards have 4 ram slots (manual says dual channel). Would like your input on this matter, thanks.
bought an ROG laptop with 16GB RAM (16x1) single channel, when I checked with CPU-Z it says that the stock RAM is samsung brand. but since my local store doesnt sell samsung RAM I bought a Crucial RAM instead (with similar specs to the stock RAM), and thankfully it works (Dual Channel) and now im getting more stable and higher FPS when gaming (around 25% increase in perormance)
+Alex Sakellarioy It is not bad if you're planning to add an extra 8gb module, but make sure it is exactly the same reference and frequence. Otherwise is always better to get the 2x4gb because the Dual Channel technology of your MOBO will improve the performance.
+Jorge Gómez i have dual channel and my board support only 8 gb.. now i have (2*2) 1333mhz4gb.. so i need to upgrade my ram 8 gb ..can i buy single 8 gb 1600mhz in one channel and one of the remaning 4gb put into 2nd channel? then it will 10gb? is it right to do? or i buy (4*2) 8 gb new? :) please help plz plzzzzzzzzzzz
Buy 4×2 if your motherboard supports up to 8gb it probably wont detect it and if you put 2 different modules it wont be as fast also buy the same mhz speed ram
Tahir Butt is always better 2x4gb than 1x8gb, by the other hand is not recommended to put two different modules. Remember you need the same frequency (Mhz) on both modules.
you know i think everyone should learn about computers and computer parts, and not! just the basics but a full overall understanding. this should be mandatory in schools, like middle and High Schools. This what the future holds anyways your going to need to know these things.
That information would be useless for a majority of people. If he/she was going into a computer building type of job, then yes. But in that case, that person would probably already know that information if it were their hobby.
1000hpHONDA search for this on youtube ("The World in 2030" by Dr. Michio Kaku) I say welcome to the tech world you either get with the program or pan out! in to the unknowns seas and live and die a caveman life, if tech allows it!
1000hpHONDA it's useful to know if a hardware producer is scamming you by selling you and overpriced and outdated computer. it's useful to know what kind of computer fits a person's particular needs and how much this person should pay for it. it is useful to be able to understand if I can fix a problem related to my computer without going through the assle of finding (and paying) a tecnician for something I could have done by myself. Knowing how the computer you use every day works makes your job more efficient. do i need to go on?
Jthegamer0813 than find something else plus the more computer you know the more of a geek you become, and not! make you a badass!, but with my theory you can even the playing field, then and only then, can you! feel like a badass! since now the competition has become fierce.
+iFLIP★07 i think what he's saying is that when using a kit of 4 ram sticks, its more eficiant if they were all on the same channel (i.e. quad channel board) and thus in a dual channel board they might not be as efficiant.
ackly14 it's not about efficiency. He plain simply says that quad channel memory might not work properly on dual channel board (mobo might fail to initialize memory's configuration automatically as it should) and might give you some hustle (configuring dozen of memory parameters by yourself).
Goran Jankovic excep that makes no sense as he said just earlier, that quad channel memory would work fine as dual channel memory. so why cant one quad channel memory set be split up into two dual channel sets? they should work just fine i would think.
you can but they wont be validated to work together in dual channel mode so you could end up with your ram running in single channel mode or worst case have an unstable pc but thats very unlikely so id just go for it and test it in prime 95 and if you get any problems try running it with one stick and if that works send the new stick back and either get a refund or try again
I bought an awesome PC in 2010 which is still a powerhouse, except I've only got 6GB of RAM, and the motherboard has a friggin _triple channel set-up_ - and NO ONE sells triple channel kits anymore, at least in my country (looks like they're rare now everywhere...) So what's the best solution for triple channel motherboards now? Just buy three separate sticks from a single model? Buy a quad-channel kit and subtract one? Are there specific models geared for this sort of thing on the market right now? What sort of troubles could I run into?
Work out which is cheaper, Look around for a triple channel kit, if you cant find one, go for a quad channel and subtract one (maybe sell it on ebay/local computer shop) if a quad channel is not an option or it is too expensive, go for a dual and a single channel rated at the same size and speeds and same brand (this setup is the least desired and may not run optimally)
You would do MUCH better to install the 1600 mhz speed ram. You can adjust the setting to utilize the newer speed. Even though they post limits on the documentation, you can over-ride them in the bios. AND you can gain speeds in other ways too. You can lower the wait states to gain performance without increasing the speed. That will also offer you another way to get more performance. I have build over 1000 machines, and I am a board designer. Good Luck
@ralph Hi so im going to build a pc for the 1st time and im a bit confused as to how ram works. the mobo is a z370-a pro and it has 4 ram slots dual channel, it says it can hold up to 64gb of ram so i could use 4x16gb 2400 mhz right ? even tough it has 2 slots in one color and other 2 in other color?
1:00 "This board... has 4 slots that are one color, and 4 slots that are another color." Does this mean that for a quad-channel board, I could have one kit of quad-channel sticks in one color as well as another kit of quad-channel sticks in the other color? If so, what kind of benefits would this give to the build, if any?
+michael mckinlay Hi Michael can you please tell what i should do in case of an amd apu because that's what i want to get right now any help would be appreciated thanks a lot
Reda Lamine if you are getting an amd apu then I would suggest getting the highest frequency ram you can get, as it improve performance dramatically, 1600mhz will be ok, although anything over 2000mhz is preferable.
Rocking that mismatched RAM here. Though at least they are all the same speed and brand :P Kingston 1600MHz a dual channel kit of 2x4GB CL9 hyperX T1 a single channel 8GB CL10 hyperX blu (running at CL9) and a 2GB hyperX stick from a dual channel kit :P
Malsherz I don't think it matters too much tbh. When I went from 8GB to 18GB all I noticed was how awesome it was to not run out of ram all the time :P
bassl0va True though my measly 6GB's is a bit lacking for what I do, bringing it up to 16GB's would be better, not to mention my old kit could go back into my old system which I'll use in my living room as an over speccedl HTPC and private Minecraft server.
I'm DIMM. I still don't know what is best. Say I have a dual channel board but 4 slots. That means I "can" run 4 sticks in a dual dual set up right? If so, what is better...the dual dual 4x4 or a single dual with 2x8? Question 2 would be if 4x4 is better should I buy 2 packs of 2 or 1 pack of 4? Finally, if 4x4 is better in a dual channel mobo with 4 slots would it be EVEN better to look for a quad channel mobo? Just so I can say I TRIED to understand. I think the answer would be 4x4, 2 packs of 2 and yes.
+InItForTheParking 4 dimms in dual channel is dual dual, yes. Either way is fine, but quad channel mobos are a money leech, so 4 dimms in dual dual is more money friendly.
I'm still unclear on one thing. In a scenario with a dual channel motherboard and a target RAM total of 16GB, which is more advisable, disregarding budget? 4x4GB sticks populating all slots and both channels, or 2X8GB sticks seated in only 2 slots across a single channel? I'm solely interested in which configuration would yield a better performance, however minuscule.
The effects of mismatching RAM is almost entirely up to the motherboard. I have 4 sticks of RAM in my board, 3 of them are the same at 1333MHz with a CL of 9 and another at 1333MHz with a CL of 8. My board set the latency of all of them to 9. On top of this, all of my ram is overclocked to 1600MHz with a 0.05v boost, and my CPU is overclocked. All this being said, my board is still confirmed running in dual channel. Try doing this on an OEM computer and you'll likely get some issues. Like I said, the board makes a big difference.
Hey Lynus, Do you mean for a CPU and Motherboard set, one channel is assigned to one memory slot? And that is why single channel meaning single memory stick? And dual channel means using two memory sticks? I can see several single memory sticks with dual channel support which is kind of different from what you mentioned or mentioned by all other youtubers (mostly, as I can't check all videos). What is 1Rx16 or 2Rx8 for a single memory stick then? May I ask you to please explain a bit more on this topic in detail. Thanks
I watched this whole thing, and I still don't know why dual/quad channel is better. I get that it's "optimized," but what does that mean? What is being optimized? If I'm in single channel mode, how much of a performance hit should I expect? Broadly speaking of course - I realize that the difference would be affected by which mobo it is.
A RAM stick has a speed (MHz) and a memory interface (64 bits wide) When counting total memory bandwidth of DDR1/2/3 SDRAM you multiply *Base DRAM clock frequency* x *Number of data transfers per clock* x *Memory bus (RAM) width* x *Number of interfaces (sticks)* = Which gives you the *theoretical maximum memory bandwidth speed* If we test this out with, for example, a DDR3 2133 we would get 2133(MHz)x2(DDR - *Double* Data Rate)x64x1(One RAM stick) = 273.024(billion) bits (34,128GB/s) Now with dual channel memory the *Number of interfaces*, in the equation, increases by 1, meaning we'd get twice the previous amount (68,256GB/s) and twice that amount (136,512GB/s) with quad channel memory. This is *theoretical maximum bandwidth speed* whether this increases performance or decreases it or whether it's noticeable or not is commonly discussed and I personally started learning about PCs a few days ago, prior to that I had no experience at all about anything so I had to start from scratch. Safe to say I'm quite the rookie and I don't know enough to be able to give a definitive answer. Since a computer is linked together by different parts and components the TMBS is affected by a lot of different stuff, apart from the RAM itself, and they're not added into this calculation. So I think it's safe to assume it'll never reach it's maximum or be fairly close to it. I do want to add that from what I've read so far people are talking about how RAM doesn't get much better with higher speed unless utilized, by overclocking for example. And I assume (I can be completely wrong here and I appreciate correction if so) that with dual and quad memory channeling it might be easier for the RAM sticks to work under overclocked conditions (since they have to send information faster but can do it through a wider bus, sharing the increased workload) Although I've read a lot about this since I started growing interest about PCs (4 days ago... I know I am late to the party) I have far more to learn about this and because of how debated this topic is, resulting in many different trust and non-trustworthy sites/people providing so much different information/graphs/experiments etc. I have yet to find a definitive answer. tl;dr By using dual channel memory the workload for each stick is reduced and the speed is increased, since they combine(figuratively) their memory bus widths (64 bit) to create a wider one (128 bit) thus allowing to send information, TMBS, twice the speed of the single channel memory. But since they'll never reach a stress high enough or get powered enough, without interferance, the yield is not going to be 100%, numbers are usually from 5-10%. Edit: Here's a link I recently read that talks about Dual channel vs Single channel. Hope it actually helps you, feel like I didn't too much for you with my rambling... www.gamersnexus.net/guides/1349-ram-how-dual-channel-works-vs-single-channel?showall=1
I appreciate the effort, but you lost me. the tl;dr paragraph helped a little. Don't apologize, everyone has to start sometime. I started about 4 1/2 years ago, I know there's still a whole lot to learn. Point being though, that in this video *about memory channels* Linus didn't even _try_ to explain why dual etc. channel mode is better than single channel mode, and barely explained even what it is.
Indeed, I've been looking up alot about PC parts and such this past week and RAM has been one of the taller walls to climb due to the mixed information and/or lack of information. But I believe I understand it to some extent, although not as much as I wish to do. The site I linked helped me getting visuals on the differences between them, in some areas, and at least it did a better job at explaining some of the differences. Edit: Page 3 showcases measurements and brief explanations of their significance.
This is very confusing: I have a Gigabyte AB350 Gaming 3 ATX board which is dual channel. Two of the four slots are populated with 8 GB each. So I cannot simply add two more identical memory sticks? The board remains dual channel, so how can I increase the RAM memory size. Buy 4 new quad memory stick and hope it will work? Because it's not guaranteed. Then why does the board come with 4 slots in the first place?
How bad would it be if I had a four-slot mobo, filled one color with one brand of 8 gig RAM, and the other color with another brand of 3 gig RAM? I assume bad?
I know this is an old video but you're the only one who answered my question. I have 3 ADATA DDR4 8GB sticks but two is 2400mhz and the stock stick came with the 2666mhz. I ordered the 2400 due to pricing. So I was wondering about the 3 DIMM slot and you said its better to just take out the 3rd one if you want the bandwidth. So I do want 24GB RAM but idk if it will sacrifice my performance with high RAM producing games like RUST. Anyways I will try both ways and see which works for me. TUF-B360M
Time when Linus didn't know about tunnel bear
Whats that ?
@Keptonrae Pingmi 6. 9.17........A call at 3:00pm, no message left.
Following day 12:00pm, l picked up out of curiosity. BUT SAID NOTHING, not even "Hello".
The caller said nothing.
It was a Mexican stand off of SILENCE.
I wasn't going to let IT know whether l am OLD, FEMALE, young, classy, stupid or allow IT to build any form of picture. You can tell a lot by a persons voice and their usage of language.
Eventually, IT just hung up after 1 full minute of silence.
LET IT GO THROUGH TO MESSAGE BANK FOLKS.....
The world is full of shady sorts.
@@stevethea5250 can you stop lsd
true bro xd
😂😂
My brother in college told me he just watched this video for his computer class. Well done Linus for being there for us after all these years! :)
All jokes aside, it's shockingly impressive how well informed and well educated Linus is on this stuff.. like I know it's his job, but I still find it impressive, excellent video, learned a lot.
I have bought an old Origin rendering rig with a LGA2011 board and an i7 4930K, and this video was perfect!
@@jas_bataille :D
@@duxtorm نَيس
If you wanna know how "high tech" my school is, I was walking down a hallway and found a single piece of laptop ram (4gb), so I put it in my laptop and it worked.
ahahhhhhhhhhhhhhhaaa
how did that happen?
my school has a server with 2, 2016 Xeon that are around 2000-3000$ each and apparently no GPU ( i could'nt run GPU-Z and i found nothing in dxdiag
(when you have to work on a project but all you care about is specs)
sweet, sweet child, in our school we had 256mb ram xp machines, in 2014
Andrei Lazar
In my high school we have pen and paper,in 2018.How did you get computers so soon?
You should use FAP prefix for every of your videos like:
FAP: Guide to RAM Memory Channels
FAP - Fast As Possible
1sword4you xD
I had a different meaning in mind 😂
oh no bro 😂
Fap as fast as possible 🤔
@@wasifsalim1173 yes with a hands on demonstration 🥵😩😈🤪
Some vintage Linus there.
vintage indeed
vintage comment
You should make a guide as slow as possible now, cause i didn't understand anything..
then you are slow, it was perfectly clear what he was talking about (and English is my second language...)
@@Tremor244 r/woosh
@@Tremor244 r/ WOOOOOSSHHH
r/w0000000000sh
@@Tremor244 r/woosh
Didn't know I would need a 2013 linus video for the actual tech tips
I've been researching a lot about rams lately, this clarifies everything. Thanks linus!
This guy helps me out so much with my pc and I don't think he gets enough appreciation for it!! Thankyou!!
Why does RAM now seem so hard to get? Before watching this I thought that you just get RAM with the MHz and GB you want...
4 years later and it's even worse... I'm awaiting my special decoder ring so I can figure out what I need to buy.
@@mephInc and here I was thinking i'd get 2x8GB now, and put another 2x8GB in, in two years time. Now I find out that even if I buy an IDENTICAL kit from the same manufacturer I've probably only got a 50% chance of it actually working. I mean WHAT DA FUCK?! industry...
Oh I feel your pain! I just brought an old notebook pc back to life and upgraded the OP from Win.7 to Win.10 and was about to buy a SSD drive for it. Being a 32bit system, I thought about changing it to 64bit so that I could get more RAM than the 4Gb maximum it’s allowed so far. Big problem with that though. The RAM slots are DDR2 and getting 2 chips higher than 2Gb each chip, is bloody difficult! I wanted 16Gb in total at least. But even finding 2 X 4Gb chips is murder. Then I found them but they were over £200! For 8Gb RAM total?! No chance! I might still get the SSD drive, but it doesn’t seem as good an idea now as it first appeared. Graphics is integrated too. But it really gets my dandruff up...I mean, dander up, that DDR2 RAM is dearer than DDR3 or DDR4.
@Donkey Kong may not work in Dual channel coz it's not officially rated as "quad channel" kit.
Donkey Kong The sticks are graded for timing and matched for speed. At the speeds that these memory sticks run at, there can be timing differences that make it unstable. This happens if, for example, the setup or hold times are slightly off between two sticks. Those times can be measured at the factory by a test rig and then sticks that match are grouped together. The most pessimism lack of matching could easily make timing differences bad enough that one stick’s data is going away (fast) just as another stick’s is just getting out there (slow). The times are in the order of 0.3 nanoseconds or so.
lol you have a lot of UA-cam channels. Every time i search for something computer related, you pop up on a different channel lol. I love that!
great info....also, you always look really high in your videos!
Entertainment Purposes
no hes been sniffing thermal paste
BladeAssassin and smoking forest duendes
Tru
@@imhereforyoulord3538 lol
Thank Linus. All the vids I've watched will definitely help when building my 1st PC in a few weeks. Kudosssssssss man!
Old English:
I have sixteen thousand megabytes in a dual channel configuration of eight thousand megabytes each of Corsair Vengeance Professional clocked at one thousand eight hundred and sixty-six megahertz and is double data rate three random access memory in my personal computer.
Modern English:
I got 16Gb 2x8 Corsair Vengeance Pro 1866MHz DDR3 RAM in my PC.
this comment gave me ebola
this comment gave me AIDS
OMG Why I wasted my time reading the first part of this comment instead of reading the second right away o.O
It made me tired :P
This comment gave me a boner
false. 1gb is 1024 megabytes. Science!
good ol' linus😁😁 back when he didn't even have a sponsor in his video..... and now he's just the boss😎😎
really happy to see you've come this far❤️❤️
Thanks for the video, very informative!
I have a question:
Is there anything wrong with installing 2x 8GB sticks in my dual-channel slots,
and then 1x 8GB in one of the remaining channels? Or will this cause issues?
Ty for the great explanation because I had problems with my computer getting blue screens to can't work at all from installing the wrong ram stick on the bandwidth slot. Now it works better after taking the stick out
As mentioned in the video, the slots that work together are colour coded, so if you put another Dual channel kit in the other slots, they should work correctly. In an ideal world, get another of the same dual channel kits, this should ensure compatibility, if they are different but the same spec, normally it's ok, if they are different spec you could get lucky by setting all of the memory to the slowest timings. Normally it works, but sometimes it will drop down to single channel mode.
Ive populated my memory board with mixed and matched sticks ( 7gb all from Crucial)
Same configuration used in two unique machines:
System A. AMD FX 8320 Gigabyte - 78LMT AM3+
System B. i7 920 - MSI - X58 Socket 1366
7GB - total
2x2gb 1333
1x 1gb 1066
1x 2gb 1066
(all timings were identical and bought months apart)
System stable, no crashes, all ran Correctly in Dual (AMD) and Triple (Intel) channel modes... Was even able to overclock the machines AMD to 4.0 ghz and Intel i7 920 to 3.4 GHZ - Cool and still fully stable.
Maybe just lucky in my case, both times. I stand by Crucial Memory for this reason, Ive never had a dead stick or an issue with them, ever.
video isn't even 5 seconds in and I burst up laughing! xDDD
You must be easily entertained
quad channel memory is for high end high price desktop computers, and he talks about it all the video long like is normal, when you will see quad channel memory in 5% of all home desktop computers. so esentially he made a video for 5% of total audience. good job
3:46 i was expecting Hey VSauce Micheal here!
Thanks for this video. I thought I understood RAM, but there was a lot I learned from this video. I have an ASUS X58 MOBO acquired in 2010. It came with 3 sticks of 2 GB RAM. I "Upgraded" it by purchasing 1 stick of 4 GB ram and have had stability issues for years that I could not diagnose. I've since purchased 2 more of the same model 4 GB ram and my stability issues seem to have evaporated!
Question to Everyone with an Example:
If I want to buy 16GB of RAM, should I buy 2x8GB RAM at once (2 sticks in the same package(Kit of 2)), or I could by 1x8GB + 1x8GB the exact -same- module RAM (Single Module x 2)?
If you didnt understand what I'm talking about then: I'm about to buy a new PC and the problem is the RAM. I'll buy 16GB, DDR4, 2666mhz. To be more specific, this is the model "HX426C13PB3/8".
I want to buy HyperX Predator, but there is not "package" with 2x8GB (as the photo at 0:29) but only 1x8GB. So there is not any available option in my country with Kit of 2. There is only the option of 1x8GB HyperX Predator, 2666mhz.
►And the Question is: Is there any problem to buy the SAME RAME 2 times (2x8GB)? Thank you in advance.
Other videos on this topic: 20 mins+
Linus: 4 mins
Thank you lol.
MAKE A QUICK AS POSSIBLE ON OVERCLOCKING CPUS.
a video for each cpu brand. make a basic guide on setting multiplier, and looking to see if your board comes with auto overclocking, and perhaps prigrams to see temps.
I once added in an extra mis-matched RAM stick(when I didn't know much about computers) and it prevented the PC from even starting up until it was removed.
somehow i mixed 4GB and 8 GB ram with diffent speeds and they are magically dual channel??
@Nick Diesal ok
I know a decent amount when it comes to computer hardware, but to be honest, I knew next to nothing when it came to RAM; but this has changed that, extremely well done very informitive, and overal probably the best video I've seen from you Linus! Cheers!
If I buy now a single let's say 8GB Vengeance 1600 Mhz stick and after some months I decide to upgrade and get another exact same RAM will they work together? Becuase they're not paired kits as he said and I am kinda confused here. Anyone can answer me?
looking for this answer as well.
as long as its the exact same model it should work best if they are the same channel
but you are better off running two at the same time of purchase.
NORMALLY but you wil still get 1600 mhz from a single dimm.
Just leaving this here so I can return here :)
stelios, provided u get the exact same model ram there most likely wont be an issue. however like he was saying in the video, there can be random problems that occur and if you can avoid it its best to buy them in the same kit. 8GB ram is all u really need for gaming / general use anyways.
I am now your 640,000th subscriber. I thought about waiting until you get another 50,000 subscribers, but these are too useful.
So if I have 4 slots that are in 2 colours I should buy 2 dual RAM sets instead of 1 quad RAM set?
No for diferent colours you need RGB on them
:DD
yes 2 dual Ram kits ....
Lol no quad will do the same
Linus: "Why does memory cum--"
Me: "Wait, what..."
Should I get 8x2 gb RAM or 4x4gb? I'm pretty sure its 8x2gb but I want to make sure.
+Stephen Sexton i think 4x4 is better if you are not planning to upgrade in the future
Pro tip: The best results are typically half the number of DIMM slots your motherboard has.
Infinite Zero so always 8x2 over 4x4? if the motherboard has 4 ram slots that is
+Stephen Sexton if your motherboard has 4 ram slots you can't do 8x2gb
+Stephen Sexton Linus answered this very question in the video. Technicall either will work... most of the time, however the bios will recognize the timings the manufacturer recommends for the ram based on the the number of dims it is selling as a kit.. (so if it is selling 2 sticks of ram, it is best for a dual channel config, if it is 4 then a quad channel. As long as that matches up you can safely assume everything will go as planned 100%)
Chances are that if you put 4x4 in dual, you will be fine, but there is a chance the timings will not quite match up to optimal, which could cause a stability issue. So that being said, to be 100% sure it would be best to check to see how many channels your motherboard supports (most support 2, really cheap, like lowest of the low, support 1, some super boards support 3+) and then get the same number of sticks as your channels, so if it is dual channel, get 2 sticks. So that can be 2X4 2x8 or 2xwhatever.
I put 4 sticks of 8 in my dual channel board and I did actually have some concerns about the timings, but really have no way to find out if there is any true issue as there are just so many timings and my computer is running fine as far as i can tell.... however.... I can not tell if it is running in dual or if it is being reduced to single. Something I will have to look into better when I get the chance. Now all things considered, if I find out there is an issue all I will likely have to do is manually set each individual timing in the bios, which my bios does allow me to do (i swear there is like 50 timings) to the right spec, assuming I can figure that out, and things will likely be fine./
Your videos are awesome! They really helps me understand the practical side of my A+ studies.
I once mix matched my RAM and i had around 1gb working ram on win 10 lololol.
Man you have been a god send when building my rig! keep doing what your doing man
Can I slap on 2 old 2GB RAM Sticks on with my 4GB Stick?
Will doing that hinder performance?
You can do that yes,
I believe it will hinder performance as the motherboard will very likely take the speed of the slowest ram.
TheCloudPuff not very "likely" but always
I have two dual-channel memory kits; they were made by the same manufacturer and had the same capacity, but they have different heat-sinks so I assume their internals weren’t a complete match. No matter what configuration I put them in on my dual-channel motherboard, they would cause Windows to crash to a blue screen during performance-intensive tasks. There was a good period of time when I was running a flaky system, until eventually I tossed one stick out, and now my blue screens are rarer than a blue moon. I concluded that there was a bad port on the motherboard, since every stick of RAM operated just fine on its own during diagnostics. I’m currently running a 2:1 3×2GB setup, which is stable, but it really bugs me that I can’t bump it up a little more with that lone 2GB stick.
Hey Linus :) Well i firstly want to say thank you for helping me with all your "Fast As Possible" Videos really taught me a lot of things!!! I was wondering since you said that you should have the same memory in order for it to run at their max performance i was wondering if you could just tell me does it matter in which memory slots you insert the memory? Like i've seen people keep spaces open inbetween their memory when they have 16 2x8Gb. Well i'm building a new PC for myself and this would be the specs MSI Z97 Gaming Motherboard 5 Intel Core i7 4790k 4Ghz and Corsair Vengance 16Gb 2x8gb 1600Mhz and just wanted to make sure how to insert the RAM Correctly and if spaces in between made a difference in performance Such as Dual Channle or Single Channle
Hey man what is your PC specs now
@@Melko_277 lol
Fun fact that I've experienced. When buying two single channels kits, usually work in dual channel, as long as the part numbers and timings are the same. In other words, two single channel kits with Micron E die, or Samsung B die rated with the same speeds and latency. I don't mean match the Samsung ram with Micron, no. Stay in the same chip family and properties. If you get two separate kits, with differing Frequency and Timings, use the settings for the worst kit for them to function.
i mixed my hyperX fury 8gb 1866mhz to 4gb 1866mhz..so far so good computer reads 12gb ram on dual channel..but is it safe?
You're still alive i'd say yeahhh
so will you assume I'm alive if I mix my 2x 8gb hyperX with my 2x 4 gb hyperX? Or do I have to cri everitiem
This video has always been helpful regarding with the explanation of RAM ranks. Thanks you :)
how many channels do you have?! I'm confused
Lol
@@jinblade2846 5 years ago man 5 years ago
@@rohanofgondor yeah i can see that and what?...
@Jalan Marshall And you need to chill the fuck out.
My friend and I are having a discussion over RAM channeling. I am saying that on a dual channel board, if you fill all 4 slots - it reduces the memory speed to single channel mode. He is saying that the memory stays in dual channel mode with all 4 slots filled. Both he and I are using AMD motherboards, AM3+ sockets. He with and AMD 8350 and me with an AMD 8320. Both our boards have 4 ram slots (manual says dual channel). Would like your input on this matter, thanks.
Legends take off ram from school pc and install in their pcs 😎😎
We did in childhood
Lol
From india
@@hardeepbabhauri7379 he too is from Indy i guess
If you have dual channel support and 4 memory slots then buy 2x dual channel memory kits (each kit including 2 memory sticks)
Isn't it that simple
lets mix ddr1 with ddr4 :DDDDDDDDDDD
+BoomBrush Impossible to do m8
+Gewel NOT impossibru!
It is
nope.avi
Create the MOBO for it then. There's not even one existing atm
At 2:33 am I seriously looking at a guy with earings?!!!! 2 earings!! You still deserve an upvote though! Very good video.
those ram sticks sparkle like pokemon cards
This guide will last forever as long as youtube is alive.
Note from the future: 16.04.2040
You don't explained how a dual channel, or quad channel means, I am still waiting the explanation
@Bishamon bro that comment is 4 year old I'm sleep lmao
@Bishamon yikes man, you good? Do you need a hug? I got you man
Cooper you go learn how not be a jackass and comeback in 4 year you pompous ass
Sorry you ticked me off
@Cooper media1.tenor.com/images/8db0d3aa2a98d8b90131b181ad2c9fb6/tenor.gif?itemid=10856401
WakandaForevar holy cringe
bought an ROG laptop with 16GB RAM (16x1) single channel, when I checked with CPU-Z it says that the stock RAM is samsung brand. but since my local store doesnt sell samsung RAM I bought a Crucial RAM instead (with similar specs to the stock RAM), and thankfully it works (Dual Channel) and now im getting more stable and higher FPS when gaming (around 25% increase in perormance)
8gb+4gb have dual channel would work right?
I have 4Gb and 8Gb sticks and it works perfectly just to make sure the hmz is equal
@@cyrilagbunag5430 does performance change at all? or just a bit fps
This is what I liked about Techquikie
3:44
Click repeatedly.
Bruh at least warn to wear headphones
you are a lifesaver
what if, I already have single module 8gb ram, and I want to add "dual channel kit 2x8"
would it be tripple channel kit, or it's a useless step?
What if i have HyperX Kingston CL10 and buy the same size, but CL9? Can't find the same HyperX RAM CL10. Will it work normal in Dual channel?
yes ussualy but it will bring them both to CL10
is it bad i have a 1×8gb module istead of 2×4gb?
+Alex Sakellarioy It is not bad if you're planning to add an extra 8gb module, but make sure it is exactly the same reference and frequence.
Otherwise is always better to get the 2x4gb because the Dual Channel technology of your MOBO will improve the performance.
Ok thanks
+Jorge Gómez i have dual channel and my board support only 8 gb.. now i have (2*2) 1333mhz4gb.. so i need to upgrade my ram 8 gb ..can i buy single 8 gb 1600mhz in one channel and one of the remaning 4gb put into 2nd channel? then it will 10gb? is it right to do? or i buy (4*2) 8 gb new? :) please help plz plzzzzzzzzzzz
Buy 4×2 if your motherboard supports up to 8gb it probably wont detect it and if you put 2 different modules it wont be as fast also buy the same mhz speed ram
Tahir Butt is always better 2x4gb than 1x8gb, by the other hand is not recommended to put two different modules.
Remember you need the same frequency (Mhz) on both modules.
mmm, yeah, like dat quickie... gave me what i needed... tech of course... what did you think i was on about?
you know i think everyone should learn about computers and computer parts, and not! just the basics but a full overall understanding. this should be mandatory in schools, like middle and High Schools. This what the future holds anyways your going to need to know these things.
That information would be useless for a majority of people. If he/she was going into a computer building type of job, then yes. But in that case, that person would probably already know that information if it were their hobby.
1000hpHONDA
search for this on youtube ("The World in 2030" by Dr. Michio Kaku) I say welcome to the tech world you either get with the program or pan out! in to the unknowns seas and live and die a caveman life, if tech allows it!
1000hpHONDA it's useful to know if a hardware producer is scamming you by selling you and overpriced and outdated computer. it's useful to know what kind of computer fits a person's particular needs and how much this person should pay for it. it is useful to be able to understand if I can fix a problem related to my computer without going through the assle of finding (and paying) a tecnician for something I could have done by myself. Knowing how the computer you use every day works makes your job more efficient. do i need to go on?
id rather feel like the badass who knows more about computers then others in my school
Jthegamer0813 than find something else plus the more computer you know the more of a geek you become, and not! make you a badass!, but with my theory you can even the playing field, then and only then, can you! feel like a badass! since now the competition has become fierce.
so what exactly is the deal with the different colored RAM slots?
(dual cannel -> 4 slots, wtf?)
so if my mobo's memory channel is DUAL but has 4 dimm slots, using 2 sticks is the way to go because 4 sticks MAY or MAY NOT work?
+iFLIP★07 I am also wondering this.
+iFLIP★07 i think what he's saying is that when using a kit of 4 ram sticks, its more eficiant if they were all on the same channel (i.e. quad channel board) and thus in a dual channel board they might not be as efficiant.
ackly14 it's not about efficiency. He plain simply says that quad channel memory might not work properly on dual channel board (mobo might fail to initialize memory's configuration automatically as it should) and might give you some hustle (configuring dozen of memory parameters by yourself).
Goran Jankovic excep that makes no sense as he said just earlier, that quad channel memory would work fine as dual channel memory. so why cant one quad channel memory set be split up into two dual channel sets? they should work just fine i would think.
ackly14 have you watched the video and listen what he was saying? They SHOULD work fine, but they MIGHT NOT. 1:50
this guy's video quality never changed xd
lol Linus 8 years ago 😂
So.. you're better off buying ONE quad channel kit on a 2x Dual Channel motherboard than buying two Dual kits of the same ram?
Accidentally deleted my RAM😭
If a motherboard have only 2 ram slot.. And you install 2 stick of ram.. Will the ram run in dual channel or single channel?
Can I buy one 4GB stick and then later buy the same stick and work as Dual channel?
yh but no :I
yeah... but yeah. yes you can
you can but they wont be validated to work together in dual channel mode so you could end up with your ram running in single channel mode or worst case have an unstable pc but thats very unlikely so id just go for it and test it in prime 95 and if you get any problems try running it with one stick and if that works send the new stick back and either get a refund or try again
***** yea but that didn't happen much. Most of the time they're fine
I bought an awesome PC in 2010 which is still a powerhouse, except I've only got 6GB of RAM, and the motherboard has a friggin _triple channel set-up_ - and NO ONE sells triple channel kits anymore, at least in my country (looks like they're rare now everywhere...)
So what's the best solution for triple channel motherboards now? Just buy three separate sticks from a single model? Buy a quad-channel kit and subtract one? Are there specific models geared for this sort of thing on the market right now? What sort of troubles could I run into?
Work out which is cheaper, Look around for a triple channel kit, if you cant find one, go for a quad channel and subtract one (maybe sell it on ebay/local computer shop) if a quad channel is not an option or it is too expensive, go for a dual and a single channel rated at the same size and speeds and same brand (this setup is the least desired and may not run optimally)
I think Corsair still produces a triple channel 12GB kit.
can i use 1600mhz on motherboard with 1333mhz capacity without any problems ?
+Jadwin Edison You could, in theory but the motherboard will most likely just run the ram at 1333mhz
lol well fuck.
It will clock down to 1333mhz, and a 1600 mhz ram might be more expensive than 1333 so find one if u could
You would do MUCH better to install the 1600 mhz speed ram. You can adjust the setting to utilize the newer speed. Even though they post limits on the documentation, you can over-ride them in the bios. AND you can gain speeds in other ways too. You can lower the wait states to gain performance without increasing the speed. That will also offer you another way to get more performance. I have build over 1000 machines, and I am a board designer. Good Luck
@ralph Hi so im going to build a pc for the 1st time and im a bit confused as to how ram works. the mobo is a z370-a pro and it has 4 ram slots dual channel, it says it can hold up to 64gb of ram so i could use 4x16gb 2400 mhz right ? even tough it has 2 slots in one color and other 2 in other color?
My instructor lead me here! Love it!
3:43 Wtf dude
He was thrown from the top by producers for talking too much
Um you didn't explain what quad channel ram or dual channel ram was! You only talked about making sure it would work with your mobo?
"How much Ram do i need to run chrome"
me: "1.5TB, for the pro edition, or 64 GB for the home edition"
(kidding)
1:00 "This board... has 4 slots that are one color, and 4 slots that are another color."
Does this mean that for a quad-channel board, I could have one kit of quad-channel sticks in one color as well as another kit of quad-channel sticks in the other color? If so, what kind of benefits would this give to the build, if any?
Did dat nigga just fall into frame at 3:43 ?
contrary to what people say you can mix ram till the cows come home. the system will automatically greatest common denominator clock speed.
what if I mix 2 different ram brands like 2gb pc3-10600 and 4gb 1600?
GamExpert XDlolz same situation, it should be fine but there is still a chance that it wont properly work
michael mckinlay it work i use different ram now the 1600 will turn to 1300 to fit the 1300 ram
GamExpert XDlolz That happens with two different frequency's, aslong as you dont have an amd apu, the 1300mhz shoudnt be a big deal
+michael mckinlay Hi Michael can you please tell what i should do in case of an amd apu because that's what i want to get right now any help would be appreciated thanks a lot
Reda Lamine if you are getting an amd apu then I would suggest getting the highest frequency ram you can get, as it improve performance dramatically, 1600mhz will be ok, although anything over 2000mhz is preferable.
Still great content in 2019
Wish i had $400 for a set of platinum dominators...
How much dedicated wam is that
@@AlejandroHermano would u like to join my dads minecraft server
I owned 2 sets of dominator platinums exactly like that. It was heartbreaking when I had to upgrade to ddr4.😭
02:44 Uow, ALL I needed to know! Really thanks man!!! :D
is this Linus's another channel?
Yes
its their dual channel
Thank you! I learned a lot from this!
lol linus
I seem to feel a lot better when I watch these videos. Your attitude is spectacular, and your content is great! Keep it up :-)
Rocking that mismatched RAM here. Though at least they are all the same speed and brand :P
Kingston 1600MHz
a dual channel kit of 2x4GB CL9 hyperX T1
a single channel 8GB CL10 hyperX blu (running at CL9)
and a 2GB hyperX stick from a dual channel kit :P
Same, well kind of, running a triple channel kit in my Asus Z87-A, hoping to replace the RAM in a few weeks with a more appropriate kit though.
Malsherz I don't think it matters too much tbh. When I went from 8GB to 18GB all I noticed was how awesome it was to not run out of ram all the time :P
bassl0va True though my measly 6GB's is a bit lacking for what I do, bringing it up to 16GB's would be better, not to mention my old kit could go back into my old system which I'll use in my living room as an over speccedl HTPC and private Minecraft server.
I'm DIMM. I still don't know what is best. Say I have a dual channel board but 4 slots. That means I "can" run 4 sticks in a dual dual set up right? If so, what is better...the dual dual 4x4 or a single dual with 2x8?
Question 2 would be if 4x4 is better should I buy 2 packs of 2 or 1 pack of 4?
Finally, if 4x4 is better in a dual channel mobo with 4 slots would it be EVEN better to look for a quad channel mobo?
Just so I can say I TRIED to understand. I think the answer would be 4x4, 2 packs of 2 and yes.
+InItForTheParking 4 dimms in dual channel is dual dual, yes. Either way is fine, but quad channel mobos are a money leech, so 4 dimms in dual dual is more money friendly.
SquidPlays Thanks
*****
no prob
I'm still unclear on one thing. In a scenario with a dual channel motherboard and a target RAM total of 16GB, which is more advisable, disregarding budget? 4x4GB sticks populating all slots and both channels, or 2X8GB sticks seated in only 2 slots across a single channel? I'm solely interested in which configuration would yield a better performance, however minuscule.
The effects of mismatching RAM is almost entirely up to the motherboard. I have 4 sticks of RAM in my board, 3 of them are the same at 1333MHz with a CL of 9 and another at 1333MHz with a CL of 8. My board set the latency of all of them to 9. On top of this, all of my ram is overclocked to 1600MHz with a 0.05v boost, and my CPU is overclocked. All this being said, my board is still confirmed running in dual channel.
Try doing this on an OEM computer and you'll likely get some issues. Like I said, the board makes a big difference.
I got an ad featuring Linus on this vid, thats amazing lmao
Hey Lynus,
Do you mean for a CPU and Motherboard set, one channel is assigned to one memory slot? And that is why single channel meaning single memory stick?
And dual channel means using two memory sticks?
I can see several single memory sticks with dual channel support which is kind of different from what you mentioned or mentioned by all other youtubers (mostly, as I can't check all videos).
What is 1Rx16 or 2Rx8 for a single memory stick then?
May I ask you to please explain a bit more on this topic in detail.
Thanks
I watched this whole thing, and I still don't know why dual/quad channel is better. I get that it's "optimized," but what does that mean? What is being optimized? If I'm in single channel mode, how much of a performance hit should I expect? Broadly speaking of course - I realize that the difference would be affected by which mobo it is.
A RAM stick has a speed (MHz) and a memory interface (64 bits wide)
When counting total memory bandwidth of DDR1/2/3 SDRAM you multiply *Base DRAM clock frequency* x *Number of data transfers per clock* x *Memory bus (RAM) width* x *Number of interfaces (sticks)* = Which gives you the *theoretical maximum memory bandwidth speed*
If we test this out with, for example, a DDR3 2133 we would get 2133(MHz)x2(DDR - *Double* Data Rate)x64x1(One RAM stick) = 273.024(billion) bits (34,128GB/s)
Now with dual channel memory the *Number of interfaces*, in the equation, increases by 1, meaning we'd get twice the previous amount (68,256GB/s) and twice that amount (136,512GB/s) with quad channel memory.
This is *theoretical maximum bandwidth speed* whether this increases performance or decreases it or whether it's noticeable or not is commonly discussed and I personally started learning about PCs a few days ago, prior to that I had no experience at all about anything so I had to start from scratch. Safe to say I'm quite the rookie and I don't know enough to be able to give a definitive answer.
Since a computer is linked together by different parts and components the TMBS is affected by a lot of different stuff, apart from the RAM itself, and they're not added into this calculation. So I think it's safe to assume it'll never reach it's maximum or be fairly close to it.
I do want to add that from what I've read so far people are talking about how RAM doesn't get much better with higher speed unless utilized, by overclocking for example. And I assume (I can be completely wrong here and I appreciate correction if so) that with dual and quad memory channeling it might be easier for the RAM sticks to work under overclocked conditions (since they have to send information faster but can do it through a wider bus, sharing the increased workload)
Although I've read a lot about this since I started growing interest about PCs (4 days ago... I know I am late to the party) I have far more to learn about this and because of how debated this topic is, resulting in many different trust and non-trustworthy sites/people providing so much different information/graphs/experiments etc. I have yet to find a definitive answer.
tl;dr By using dual channel memory the workload for each stick is reduced and the speed is increased, since they combine(figuratively) their memory bus widths (64 bit) to create a wider one (128 bit) thus allowing to send information, TMBS, twice the speed of the single channel memory. But since they'll never reach a stress high enough or get powered enough, without interferance, the yield is not going to be 100%, numbers are usually from 5-10%.
Edit: Here's a link I recently read that talks about Dual channel vs Single channel. Hope it actually helps you, feel like I didn't too much for you with my rambling...
www.gamersnexus.net/guides/1349-ram-how-dual-channel-works-vs-single-channel?showall=1
I appreciate the effort, but you lost me. the tl;dr paragraph helped a little. Don't apologize, everyone has to start sometime. I started about 4 1/2 years ago, I know there's still a whole lot to learn.
Point being though, that in this video *about memory channels* Linus didn't even _try_ to explain why dual etc. channel mode is better than single channel mode, and barely explained even what it is.
Indeed, I've been looking up alot about PC parts and such this past week and RAM has been one of the taller walls to climb due to the mixed information and/or lack of information. But I believe I understand it to some extent, although not as much as I wish to do.
The site I linked helped me getting visuals on the differences between them, in some areas, and at least it did a better job at explaining some of the differences.
Edit: Page 3 showcases measurements and brief explanations of their significance.
This is very confusing: I have a Gigabyte AB350 Gaming 3 ATX board which is dual channel. Two of the four slots are populated with 8 GB each. So I cannot simply add two more identical memory sticks? The board remains dual channel, so how can I increase the RAM memory size. Buy 4 new quad memory stick and hope it will work? Because it's not guaranteed. Then why does the board come with 4 slots in the first place?
How bad would it be if I had a four-slot mobo, filled one color with one brand of 8 gig RAM, and the other color with another brand of 3 gig RAM?
I assume bad?
Why do some boards come with 4 memory slots and say they only support dual channel memory? Aren't those 2 slots wasted empty space then?
I know this is an old video but you're the only one who answered my question. I have 3 ADATA DDR4 8GB sticks but two is 2400mhz and the stock stick came with the 2666mhz. I ordered the 2400 due to pricing. So I was wondering about the 3 DIMM slot and you said its better to just take out the 3rd one if you want the bandwidth. So I do want 24GB RAM but idk if it will sacrifice my performance with high RAM producing games like RUST. Anyways I will try both ways and see which works for me. TUF-B360M
Tbh, I've watched so many videos, many posts on the internet and I STILL don't know how to change RAM single channel to duel.