Is 128GB of DDR5 IMPOSSIBLE on AM5? Level1 Investigates!
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- Опубліковано 1 жов 2024
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AIDA's memory test has a tendency to hit the L3 cache during the "RAM tests"
Also you can literally calculate max memory bandwidth. DDR5-4000 has a max bandwidth of 64GB/s. DDR5-6000 can't do more than 96GB/s
Yes, I should have mentioned that.
Buildzoid , I love it when you drop in with some fresh knowledge nuggets on other vids.
I'm still interested in how to get 2T command mode on am5 I can only get 2T GDM off at 3600CL30 but at 4600CL40 (my pb completely stable) its 1T with GDM on. I thought uneven secondary timings was the answer but it didn't work. Asus support didn't say whether it could be added to the BIOS when I asked
Well, a memory benchmark should be designed large enough to mitigate that. Could it be more like "intel has aida memory test optimizations in its prefetchers"? They do have a tendency to design for popular synthetics, where amd designs of real world use.
@@dgo4490 actually right now AIDA is most inaccurate on AMD. The infinity fabric at 2GHz should have a max bandwidth of 64GB/s.
Amazing, now server-grade boot times are a reality for desktop.
for the first time in decades IBM now has competition for 1st place as the slowest systems to boot..... "great"
@@TommyApel I thought their petite boot was supposed to be comparable fast? At least that is what I heard for the Power 9 platform, and I would expect it is the same or better for newer ones.
@Andrew Crews 5 to 10 minutes? That's Windows-XP-on-a-Dell levels of slow booting
@@Aegor1998 not really, IBX ThinkServers are by a long mile the slowest servers to boot that I've ever had the displeasure of working with, it was at the point where you started looking for your car keys to go to the datacenter before they came back online, next after those is HP which are also ungodly slow to get through post especially if you have raid controllers.
That's memory training boot time. It's less than 30 seconds from button to windows once its trained. Still not fast but its not bad
3:00 I've experienced this on countless DDR4 boards in the last few years, _especially_ in the ITX space. Have to not only push down, but help it in place by pushing the latch closed.
same. went small board this time and had to reseat the ram because it wouldnt post even though it "clicked."
i HATE it ... makes me feel like i'm going to break the board/chip and I double check the orientation at least 3 times
@@derekp6636 Yeah the crunching sounds of the slot is always unsettling, and I build 8 or so systems a month. Unfortunately getting them backward is still a problem, since it's fairly easy to miss which way the key is oriented if you're not careful, and given how close the key position is between DDR4 and DDR5, it's also easy to think you've got the correct type of RAM when you may not, as well, so even more care is needed. I know they didn't really have room to move the key very far, but it would have been nice if DDR5 did differ a little more vs DDR4 in connector appearance. Would have saved one client who brought an in-progress build to me, since they tried shoving DDR4 into a DDR5 board and ruined the board. Luckily the RAM was undamaged.
@myselfremade yeah, would be nice, but they'd have to divide the data bus segments to do so, and for signal integrity reasons this was not done. A new PCB design that was either longer or shorter would have been the true ideal, solution, but alas, $ talks, so here we are.
@Andrew Crews Rambus dram flashbacks...
Gskill's SKU makes sense and instantly tells you a lot about the product. F5 means DDR5, 6000 is the rated speed. 3040 is the first two cas latencies of 30 and 40 32gx2 tells me that it is 2 stick of 32 GB stick Tz5n means it is trident z with Expo profieles where as TZ5 whithout N means it is XMP profiles. The lack of a K or S means it only comes in one color way
Jesus Christ why do I need to know that in the SKU name? Should AMD rename their 7950x to 7950x16 in order to tell you that it has 16 cores? If the product name can tell you what chip the ram is actually using, that would be much appreciated because Amazon or Newegg pages pretty much never state that.
@@Sebyllis7350k that is too much information to shorten further. And every bit is relevant. If you only care about the speed and capacity, just search for those. For guys like me, knowing that actually helps alot. I'll always remember what Maheer said now.
@@fistan5447 Agreed! One string to rule them all. Thank you @MaheerKibria!
Thank you for this. I just did a rebuild with AM5 7950x on an ASUS Proart x670e board. I am doing a lot of heavy video file editing in Davinci and was clued into having more memory capacity is key to smooth experience when rendering frames during editing. Like 12bit raw 4-8k footage. Anyways I wanted to get 128gb running and ASUS kept telling me it’ll only be stable with 2 of the 4 slots filled or I have to go with a 4 stick kit they recommended Kingston fury so I’m running that kit now but it’s xmp ready for Intel. I’m getting speeds of 3600 instead of the 5600 it’s rated for. Any attempt to push that memory faster leads to instability and safe mode booting. I’m not sure if this will be fixed later with newer bios as we go along with the platform. Or. Do you think there will be 2x64gb kits out there I should look into in order to free up those two slots? As of right now I’ve never had video editing run this smooth it’s awesome but it kinda eats at me to be leaving some performance somewhere on the table … Appreciate your help your channel and your time 🙏
GLAD someone is talking about this! There are a lot people wondering why their 4 slot memory config can't run DDR5-6000 on AM5.
And not just for AMD!
AM4 do the Same. Its normal.
@@NetrunnerAT That said 128GB 3600 DDR4 was running very well, unlike the new DDR5-6000 "sweet spot"
@@ChatGTA345 AM4 do the Same. I use 4000 128gb Kits and with two Sticks i get this Speed, But If i use 4 i get only 3400. This is normal ... Nothing new 🤷
@@NetrunnerAT Yeah I'm not arguing, just noting that I ran 3600 with AM4 and that was rock solid and top-tier performance, unlike with AM5 or Z790.
Running a VFIO setup on Ryzen 7000 with the iGPU as my linux display out and 128GB. 4200 stable is the most I can get with my RAM (corsair non EXPO kit). The newest UEFI really helped stability with my MSI board. There's a long way to go. Thanks for putting in the work Wendall, keep fighting the good fight!
Have you tried passing the iGPU through? I've been trying since I got my processor and gotten absolutely nowhere.
@@СусаннаСергеевна I haven't tried it myself, but I believe this is down to IOMMU groups, is it not? Curious what chipset you are running? I have heard that the 650 boards have awful iommu grouping that makes it impossible.
@@TheGreatSpiff X670E ProArt. The IOMMU groups are actually great, everything I can imagine wanting to split apart is split apart. The iGPU is in an IOMMU group it shares with some audio device I'm assuming is HDMI audio.
As it is I can boot a VM and detect the iGPU as an AMD GPU, but the driver refuses to bind to it no matter what I do.
has difficulty hitting 4800？ add voltage to mc to see if that help.
@@СусаннаСергеевна no I have not
Has any changed regarding this matter? Has there been a bios update that makes it possible? Is there a new mem controller on the 9000 series that make 128 GB at 6000MHZ possible?
I'm hoping that Zen 4 with 3D cache will, as the 5800X3D did, ameliorate the performance impact of slower memory, and thus allow for highly performant quad rank setups.
If AMD isn‘t releasing a 16-core 3D SKU this time around I‘ll be pretty pissed myself. Remember that 5900X3D sample Lisa Su was holding into the camera over a year ago? Let‘s hope Intel can put the competition pressure back to AMD so AMD stops acting all Intelly circa 2013. :(
Honestly I would get a 3D Vcache version if that means I can run slower ECC ram since you could get the best of both worlds: good stability and good performance.
3D Vcache would even help out a bit with power consumption since main system memory can be accessed less and clocked lower making the whole platform more attractive. Fuck the responsible product managers.
You don't need 7950x3d. It's a productivity chip. It already isn't that great for gaming so the cache wouldn't be that helpful. The only chip that makes sense for gaming in a practical sense is the 7800x3d. If you do work just get the 7950x as the 3d version isn't going to be any better. The productivity applications won't benefit from the cache. If AMD even makes one it won't be anytime soon.
It is not wise to project your own computing demands on other people. Not everything revolves around gaming and there is a reason AMD released a few Milan-X SKUs but only a Ryzen fig leaf. And that reason isn’t that AMD is looking out for its lower tier consumer platform wanting to help customers not accidentally buying a 3D CPU that’s a bit more expensive than the non-3D counterpart.
this video needs an update. AMD a couple months ago released a bios update that improved multiple ram related things (like allowing 7000s series to run 6400MTs ram at 1:1:1)
Good thing I bought a single dual stick kit of 64gb 6000mhz for my steel legend, as opposed to two.
Phew. Thank you Wendell, answering a burning question I've had for the last few days. ❤️
I'm currently running 128gb DDR5 at 4600mt/s with my 7950x. They are two 2x32gb kits of corsair CMK64GX5M2B5200Z40 (5200 mts c40). Those kits were pretty cheap compared to most lately and probably still are today.
That's the max I was able to run them on both an Asus proart creator wifi x670e board and an asus prime x670e pro wifi board. Both running at docp profile 1 and setting the target frequency to 4600 (no other tinkering, using the latest bios which you do need to update!). Above that it won't boot.
Not officially supported but I think its the most bang for the buck 128gb configuration I could find. Hopefully this info can help some people. Maybe I could manually OC to squeeze a bit more but I've read of instability issues so I don't bother with it.
I might upgrade in the future when true 4 stick kits become supported, available and affordable. Imo buying more expensive ram than my config is just not worth it as it's pretty clear something much better will come along eventually and you're gonna need to upgrade anyway, even if you splurge for the higher end ones now. I kinda also doubt the current kits will get that much better support through bios updates as many manual OCers have tried their best to push them to their limits in 128gb configurations with no success. I don't think a docp profile that actually can get them to their rated max speed is even possible.
Thanks for this great video. Wish this video was available when I made my build, it would've saved me a ton of digging in forum, trial and error buying the wrong things, and tinkering around in the settings. I'm sure it'll help out a lot of people.
Ps: my boot times are very fast now, once the first boot was completed. The memory training time on first boot is always very long, and annoying since you never know if it will eventually succeed or not. If you follow my config you should have no problem matching my results easily and get a very usable working 128gb setup at a somewhat decent speed. Cheers y'all!
Pps: heard the expo version of my kits currently have a bunch of issues, my local shop has stopped carrying them. I recommend you get the regular xmp version like me.
I had 32gb ram and I double to 4 sticks so 64gb pc was stable for days speed was 5200mhzt then got a blue screen heard if u reduce the speed should be fine, so I reduce by 200mhzt running at 5000mhzt gonna see if it works, but two sticks even at 6000mhzt is fine.
What voltage are you running the sticks at?
I was running 2x32 blades of Vengeance CL32 6400Gbz at 6000Ghz with no issues. Today added 2 extra blades and my hell started. Updated the Bios before installing them. Got them recognized at bios, boot, and no POST or windows Anymore. I was only able to see the bios again removing PHYSICALLY the 2 new blades. So i see the BIOS, was able to down the speed to 4000Mhz, put the blades again, and finally it boots. (But it took me some hours in the process of trial and error. And Having to remove the blades each time to see the bios is a nightmare. Now i am running 128Gb at 4000Ghz. Gonna re-read your post and try to squeeze more of it.
The content I have been waiting for. I always want to see how far can these platforms go with extreme memory size. Finger cross and see if Buildzoid will also test 128GB on AM5.
Can you please do memory intensive benchmarks for 128gb running at 3600mhz (AMD Recommend level) and compare with 5200/6000?
AMD and Intel really don't want you to use consumer chips for workstation work any more.
Have they ever? The real issue is that HEDT are now utterly unaffordable. I remember when the i7 920 was common.
@@Bayonet1809 Having to shell out 2k+ $ just to get more PCIe lanes is moronic. We have multiple PCIe slots but can realistically only use 1 maybe 2 of them.
Worst thing is that it's kind of blatant what they are doing when only giving us 24-28 lanes.
@@Yock1980 I like how Asus does the PCIe setup on their WS X570 ACE board, it really helps out in terms of expanded PCIe capabilities (at the cost of some extra latency I'm sure)
Curious how this is aged after a year of BIOS updates
I hope OP has had time to correct error of his ways. 99% of this video is useless quasi BS . Perhaps loaded with true but superfluous information that has no bearing on issue. Even today the issue is failed system post on AM5 and Intel 12th and 13th gen with DDR5 4 stick XMP/OC memory remains. The issue is that running XMP/OC with 4 DDR5 sticks is unstable when running above 5600 mhz. At 4800 it is stable. At 5000 and 5200 is mostly stable. Problems may begin at 5600 and are really present at 6000. Sad part , it's not universal. It's a combination of mb, ddr5 sticks, and GPU.
At 64gb using 16gbX4 or 32gbX2, at full 6000 or higher (as suppourted by MB bios), there is little or no instability. But move up to 128gb , and realistically , you are limited to base DDR5 4800mhz , regardless of what MB and RAM supports. Running above that and you risk stability. Go ahead and blame who you want. Go to Digital Storm, Origin, CLX, Xidax. All their 128gb ram offerings top out at 4800. While 64gb (32gbX2) go higher then 6000. Their workstation and server offerings are at 4800 or lower for ECC sticks. They can't get reliable stability , or even posting, with XMP/OC ram with 32GB X 4 DDR5. They simply can't.
I blame MB and chipset vendors. They view 128gb as high end workstation capability , which it is, being highly uncommon and uneeded on consumer gaming system.
you just saved my sanity with this video... as it has been a few years since i last built a machine, i would never have expected the limitations we currently face with 4 DIMMs. 10minute Boot times? No freaking way... but yet, here we are.
Got my 128GB to run at 3800MHz, will have to see if its stable though.
I was able to run my 6400 128Gb (4x32Gb) just reducing the speed down to 4000Ghz. :( Latest MSI Bios, Vengeance CL32 - 6400Ghz). What a Hell !
Thanks for addressing the 13900K since that would have been the next question. It can't remember a time when the memory technology was that far ahead of the memory-controller technology and this is Intel's 2nd round.
ikr 😢
I think 128GB support needs time to mature. In the end we're talking about consumer boards and board manufacturers will test RAM and optimize UEFI settings for the memory configurations which are around the sweetspot for consumers, so 16GB or 32GB in total.
And Intel has the 2nd gen CPUs with DDR5, so it can be assumed that they have improved the IMC in Raptor Lake compared to Alder Lake. If I remember correctly, early adopters had also issues with DDR5 compatibility.
So let's wait and see what AGESA and UEFI updates bring in the future.
First build 13900K 128gb Corsair dominator platinum 520hz. Evangelion z690- no problems 4800hz out the box. Can’t get xmp to work. 🤷🏼♂️
Well it's not just 128GB, it's 64GB if you're using 16GB DIMMs
@@thepopeofkeke this cannot be true unfortunately, I suspect your settings are unstable. Even 13900K cannot run 128GB stable greater than 4200ish, all manufacturers tried and failed at it
I have the XMP version (F5-6000J3040G32GX2-TZ5RK) and 7950x. Was hoping to upgrade to 128GB down the road. Hopefully future AM5 CPUs will have a better IMC to support DDR5 6000 with 4 DIMMs.
64GB DIMMs would probably be easier
Any updates to this?
I had similar issues getting just 64GB of DDR4 4000Mhz running even XMP on my x570-ryzen 9 5950x setup. I eventually got all 4x dimms running at 3733mhz with an fclk of 1866 but it was a pain in the ass with a lot of testing and restarts and instability.
Could you please address the same issue with Intel? The situation doesn’t appear to be any better over there 😢
My experience with modern DDR4 and DDR5 has been a pick one of two. 1). Lots of RAM at lower speed and higher latency. 2.) Some RAM at high speed and low latency.
Yep, unless if with DDR4 you want to spend a good amount more money then you can somewhat get both, but usually its not worth it
@@MrMaddog2004subscribe Spend money to get better what ? Memory ? Motherboard ? Isn't this mostly a memory controller limitation ?
@@Winnetou17 RAM binning is a thing, RAM that's running on the edge won't be stable even on the best matured CPU/Chipset
Aw awesome! I was just looking for advice about this topic yesterday. I can't believe with the newness and pricing of AM5 motherboards, the IMC is such a problem. For now I'm going to go with a B650 (why 670 with the same iffy IMC?) and only 64GB. Sadly, going to Intel for 128GB seems to not really bring much benefit. Ya, I'm poking at you Intel also.
Please tell me I'm not the only one chuckling at the irony of a board called the Steel Legend being made up of mainly plastic 😆
The all new ASPaper Plastic Legend :D
it's Asrock, they have decades of consistent mediocre-to-poor quality and reliability on their record
That MB that he mentioned was mostly plastic was the Aorus one, he just happen to put it on top of the Steel Legend Box.
Wish I saw this video first before buying 2 pairs of Corsair Vengence 5200mhz kits for 128gb total. Luckily I didn't buy high end ones, which would have wasted the chip speeds. On my MSI PRO X670-P WIFI with 7950x I was able to get a stable 4600mhz - it passed two PassMark memory test runs. 4800mhz posts and boots, but fails memory test. 5000 and over does not post and need a CMOS reset (or take out two of the chips to boot and change bios settings)
They really should reinforce the RAM slots and make it so RAM sticks can properly insert themselves into the slot without having some janky thing where it doesn't fully click into place. When inserting RAM you're putting a lot of pressure on the slot and RAM sticks, which feels like it's gonna break.
Even on generations before, inserting RAM could be feeling pretty sketchy sometimes - so hearing this about DDR5 has me a little worried lol. But I'm sure manufacturers will figure it out sooner or later, just how they'll have to figure out more resilient PCIe slots.
Yeah - Probably not a good idea to reseat them when the motherboard is in the case on the standoffs ...
Boards are wildly more expensive and more cheaply made what a joke
Is there any update on this? Has am5 memory support gotten any better with newer BIOSs?
Ahh this sucks.
I was hoping to upgrade to a 7x00X3D system with AVX512 and 128GB 6000 ram. But that looks unlikely now.
What do we know about the ecc capabilities of ddr5? Is it any good?
Just got 128GB in my home server based around a 7950x. Works great 👍
Is it still doing any good and stable sir?
Has this improved? I want 128Gb on AM5 board. Is it still that I should not buy faster than 3600Mhz memory?
I'm running 128GB using Corsair 5600 modules, but only at DDR5-4400, otherwise it's not stable. This is on latest 2024 bios Asus X670-P, 7950X
@@jamescarter9147 Luckily I studied this bit more and went with 2x48GB, at the time I was also considering Intel CPU as there memory works better, but in the light of recent news, good that I did not ;)
G'day Wendell,
WOW! 128GB RAM on Desktop, that is the size of my OS SSD😂
Recently I built a 7950 system (Asus x670e ROG Crosshair Extreme) for a deep pockets client. He ordered 128gb of Corsair Dominator Platinum RGB 5200.
With all 4 sticks, it would never run more than 3600mt/s, and took 20+ minutes to train/post.
With just two sticks, it would hit 4800mt/s (still not the 5200 advertised), and enabling manual DOCP would refuse to post even after an hour of training.
We were both a bit confused and upset. He currently decided to stick to the 64gb.
"still not the 5200 advertised"
Cause NONE of the memory those brands sold is official DDR5 5200/6000/whatever. They are all overclocked, way different timings, way higher voltage/power.
Right now we are just seeing the first few JEDEC 5600 kits arriving, 5200 for a bit longer - but JEDEC 5200 means 38 CAS and 1.1V. But most memory that you can get is glorified overclocked DDR5 4000-4800.
@@ABaumstumpf I understand that JEDEC is all that's guaranteed. However, they advertise DOCP at 5200, and the set was on the QVL for the mainboard, so in theory it should work, and was advertised to do so.
Hello, I have a question that I hope you can give me a short answer to. have tried to find an answer without success.
I have always used the same 4 pcs. 4GB memory chips 16GB.
(CORSAIR VENGEANCE BLUE 1600MHz 4GB 9-9-9-24 1.50V)
With an Asus sabertooth 990fx and
AMD FX8350
It worked fine for many years until I installed win11.
Then I started getting a blue screen. It took approx. 1 week between when it happened. After a lot of troubleshooting and testing with other memory chips, I found that only the first 2 memory chip slots worked. I came to the conclusion that it was the memory controller in the processor CPU. which was destroyed.
Since this is not a new CPU, I managed to buy it used and cheap and had my theory confirmed.
In the meantime before I bought a new CPU. then I built another computer from parts I had. A computer that was not quite complete. same year and actually the same system AM3+ but a different motherboard from the same year
(Gigabyte GA-870A-UD3 v1.2) a typical gaming motherboard from that era. The strange thing was that the 4 of these memory chips I had did not work and my computer would not work.
Then I took out one memory stick and replaced it with another memory stick
(Corsair Dominator 1333MHz 4 GB 1.65V 9-9-9-24 XMP)
and set memory chips in bios to 1600MHz and timing manually
9-9-9-24. it has so far worked perfectly without any errors.
My question is as follows.
1. Why did I have to replace one memory stick with another to make my computer work? Do you have any theory on this? After testing, I know that all 4 pcs. stick works without problems.
2. I tried some Overclocking programs in win 11 which were unstable and destroyed another set of 4 pcs. memory stick, that's what I think was the cause. I hadn't even set anything in the programs since they crashed. Can such a program destroy a memory stick? Do you have experience or a theory?
Seems to me this is much like 1st gen AM4, buggy memory controllers, wait for 2nd gen.
the 13900K handles it like a champ. AMD IMC is crap.
This is a great video! Thank you for talking about this, and for talking about the ddr5 inserting issues.
It should be able to address 1TB total. Expecting it to be any faster than junk in the first implementation when they should have been making some kind of high-speed HBM3 module and socket system is idiocy.
Why open with that title?
Just be clear. If you can't do it? Just say it in the fuckin title.
Even with the latest OMG, supports more memory AGESA I still can't get my G-Skill F56400 (4x32GB for 128GB) to go above 4200Mhz. With May version of AGESA I could hit 4200 without DOCP, now with the new version I have to DOCP to even hit 4200!
same, kinda bummed out that i cant run half of the ram i paid for properly.
This doesn't sound great compared to DDR4... I am currently on AM4 with 128GB of DDR4-3600 memory, and in AIDA64 I get a read bandwidth of 53000 MB/s and a Latency of 77 ns. It sounds like DDR5 wouldn't be any better at all?
@Dmitry Akimov But the "failure" might really be the IMC on current CPUs as opposed to a failure of DDR5.
Same here. 5950X with 128GB 3600 CL16 works absolutely fine. Wont boot at all with 3800 even with a single stick but that 3600 is rockstable. Seems like one has to wait for the 8xxx Series AM5 Chips for better Performance with 4 DIMMs.
hmm I hard disagree on testing with memtest86 - it's OKAY to spot complete faults but as for stability naah gotta stress in windows.
corrupting the install can happen though that's true.
And/or use one of AMD’s feature advantages of not disabling ECC by default and use a motherboard and memory with ECC support. Have many AM4 systems with 128 GB of ECC memory and no issues with DDR4-3200.
and never do either on an arc fault breaker (without a UPS)
So roughly a third of your video assumes that someone who's even considering 128GB of RAM doesn't know how to use a DIMM slot and seat their RAM properly?? Hey there were about 50+ people that failed to plug in their 12VHPWR Connector .. so maybe?
.. What blows my mind is there are essentially next to no "quad" (4x__GB) DDR5 kits.
Where are the problems with 4 DDR5 coming from?
Is it something which can be fixed in future by a BIOS update by AMD and/or by motherboard manufacturers?
When the motherboard manufacturer offers 4 DIMM slots for DDR5, and it is not really possible (at least not now?), is it not a reason to give the motherboard back or get a price reduction, when I already bought it, but want to keep it?
Is there a size limitation per DIMM? So could a DIMM bigger than 32 GB be a solution? So 2x64GB could be possible and a solution for the future? What is the maximum DIMM DDR5 size, which current system support?
Same problems on "the other side"? How is it going on Intel side with 4x DDR5?
ua-cam.com/video/pmCRg3jvfIk/v-deo.html
I don't recall Intell ever having this issue.
Wait ✋️ intel is better 🤔 once again .
I sincerely hope that, with later CPUs or BIOS updates, current boards will support 128gb...
Yes, in 2025 when the first 64 GB DDR5 UDIMMs come to market ;)
They already do support 128GB, just at slower speeds. Future CPUs will probably have improved IMCs, allowing for improved memory speeds.
@@Bayonet1809 yes, technically, although I think that when you're talking about 30% reduction in bandwidth by plugging in more sticks the "support" is pretty much just nominal... but yeah, as I just upgraded and plan my next upgrade for ~2y from now, being able to go from 2x32GB to 4x32GB along with CPU upgrade would be ideal.
Can you try dual 64gb 4800 ecc sticks? Id say that would probably be the best option now if it works. They are available here in Europe for 350€ a piece.
M321R8GA0BB0-CQK
So the boards are wildly expensive and more cheaply made?
The bandwidth speeds you mention do sound so low. Are these single core bandwidth or is that the real limit of the full multi core bandwidth of the chips.
I am sitting here with an M1 Max MBP im thinking my single core bandwidth is 2x that let along the multi core bandwidth.
Honestly I feel like AMD shouldn't advertise 128gb RAM support until it really works properly. That or MB makers should just put two slots on their boards and call it a day.
128 GB support has been there since AM3 days. I do not know what you mean by "working properly," but it seems to work fine, albeit at reduced speed. That is not on AMD but physics. Every memory controller in existence has had the same limitation.
I have a shitton of Ryzen build with 128GB and also same with Intel platform and this is just normal limitation when have double the number of RAM sticks, it has nothing to do with Intel or AMD, you have to get lowest speed
I bought used B350 motherboard with 1700x, that had pretty old bios and 2666mhz Adata 4x4gb kit. I could not make it run at 2666. 2400 had stability problems and only 2133 worked fine. After bios update it could easily run 2666 and then when I upgraded to 3200Mhz kit it also run fine at 3200Mhz without any issues, so a lot of memory problems on first ryzens was solved by bios updates. I also think that memory manufacturers had to learn "AMD" again after being abandoned for a while. It was a lesson for both - motherboard and ram manufacturers to get back into AMD and make some compatibility tuning. I don't know how it was before, but now I even do not have to tune the Infinity Fabric. It always automatically sets itself to 1:1 ratio with memory.
What about 2x 48gb sticks?
I got 2x 16GB expo 6000 sticks, and was planning to get another 2x later for a total of 64, so I shouldn’t do that? Edit: Saw this addressed. Looks like I will sell my 32GB kit used down the line and I’ll get a 2 stick 64Gb kit later.
4 sticks 64GB work just fine
There’s a typo on your hoodie. It should say “…your computer, Linus.”
Pretty much all of the ASUS memory QVLs that I've looked at for both Intel & AMD DDR5 boards currently only have 2 DIMM configs listed.
BuildZoid has been arguing for a while that 2 DIMMs should be the be standard on DDR5 motherboards, not 4 DIMMs, because of the inherent speed advantages with DDR5 and resultant difficulties with running two DIMMs per channel. Seems like he might be correct.
What if you need more memory a year from now? It’s so much easier to add 2 more sticks than to build the whole thing from ground up.
@@penguinbelly I think the point is that the way DDR5 is designed, the architecture of it, makes having multiple DIMMs/dual rank either have no advantage or even actively make things worse, so you'd be better off selling your existing two DIMMs and buying a higher capacity set of two.
ua-cam.com/video/Q8XLvZTqyX8/v-deo.html
I bought the G.SKILL 64GB 2x32 6000 CL32-38-38-96 1.40v.
And have been wondering if i've made a mistake not getting the CL-30-40-40-96 one.
Or are they pretty much the same.
Can anyone tell me?
For AM4 boards I only had troubles with ASRock, never issues with other brands. I had a b350 fatality with a 1700, and a b450 fatality with a 3600. Both motherboards wouldn't go over 2800mhz ram with 3600mhz sticks. Then I grabbed a b450 Asus board and put the Ryzen 5 3600 in it, and the ram will OC to 3800mhz with same timings as 3600mhz.
I also want to upgrade my AM4 3600 64GB (2dims) to 128GB 4dims. Are you saying I can expect problems with that ? 🤔
I have been running 64GB 3200 16-18-18-38 as 4 -16GB DDR4 modules on AM4 for at least 2 years and thought that 128GB was no problem with the next gen. Heck my ASUS B550 MOBO can handle 128GB?
5800x, ASUS Tuf gaming with 4 * 8GB 3600 cl16 t1. Going to skip 7*** and maybe the next gen after. 5800x is far more power than I need currently.
Dunno, I've been doing it fine for the last 6 months.
Just disable XMP / EXPO.
Run it at the stock safe 3600 or 3800.
You have to match the two kits you buy exactly.
Be sure to reference the DDR5 spec when talking about this. Section 10 talks about the speed bins and what you should be seeing, all the way up to DDR5-8400.
I’d hate to see how tedious higher capacities would be since 256GB is technically possible with DDR5. Haven’t even seen any 64GB DDR5 UDIMMs outside of the server space yet…
8:00 "It was clocking faster on Ryzen 1000 and 2000 series..."
Nope, you are mistaking on that. I owned a 1700x and never was able to clock my memory above 2900MHz on the first AGESA BIOS update. It was fixed after around a years. Same thing will happens as AGESA update are going to drop.
Disappointing given the presume potential of a 7950x rig to replace those people with a Threadripper 2950x at a "decent price point". Yes the DDR5 RAM is crazy expensive as are the highest end motherboards. In time prices might fall, UEFI might mature and imorove on these current and future AM5 motherboards?
I ran 4X16 GB of DDR5 at 6000 mts for 13 months, (7800X3D, X670E steel legend, automatic EXPO) no problem. Until suddenly, one day, I started getting random BSODs or a frozen, unresponsive system. I don't know what fucked it up. Maybe a windows update. I am currently running them at 5200 with good timings, and that seemed to stop the random crashes. I am getting a 2X48 DDR5 kit next. Four dimms in AM5 is a bad idea and I did not know it at the time.
WOW 4x32 GB Trident Z5 NEO are now running on the ASUS x670e Hero at 5000MHz my settings are: Tcl: 36, Trcd: 36, Trp: 36, Tras: 77 the speed for the 4DIMMs at 128GB improved now to Read: 68'330 Write: 72'765 Copy: 67'461 Latency 76.0ns.. But whatever I try at 5200MHz will fail until now, but 5000MHz is better than 4000MHz. The Curve Optimizer for my 7950x CPu is: all cores/ negative/ 16. If I can get the 128Gb to run faster than read 70'000, then I would post again.
I have built with 3950x3d, Aorus elite AX x670 and 64gb (32x2) DDR5 6000Mhz CL36 and got the 6000MT/s strait, but when added two more 32gig DIMMs and populated all 4 slots with same CL36 6000Mhz memory, I can get only 5000MT/s with all the efforts using XMP, my BIOS is F9 which is old by now, but when I upgraded my BIOS F11 or latest, it did not gave any clock more than 3600Mhz, PC didn't boot with any XMP multiplier other than 36 (3600Mhz). Then I downgraded my BIOS to F9 again and get theh 5000Mhz using XMPx50 and running statable now. I did tried to do it manually but non of the combination booted. So, upto 64GB (2DIMMs) you may get advertise memory speed, but beyond 64GB (2DIMMs/Sticks), its is really a silicon lottery. What you loose here is around 15-20GB/s b/w between Processor and RAM (5000MT/s-60-65GB/s and 6000MT/s-80-85GB/s).
Using more than 4 ranks was a problem in any RAM generation since SDR. That's why you should avoid dual rank RAM if you want to add more later.
Hello. I have g.skill intel xpm RAM, with what settings can I activate 6000 MHz on am5 motherboard with CPU 7950x3d?
Hi, can you help me?
I have asus am5 b650 plus wifi gaming, does it support dual 96Gb 2*48 at the advertised frequency?
Team group is better 😏
KINGSTON Fury Beast 64GB (2x32GB) 5600MT/s DDR5 CL40 XMP (KF556C40BBK2-64) 2x for 128GB
ASUS ROG STRIX X670E-E GAMING WIFi
works fine with 2x32gb....doesn't boot with 4x32...please help :)
CPU 7950X
And the fanboys are still running with the bogus "DDR5-6000 is the sweetspot". That was the INOFFICIAL response of an AMD-marketing manager when asked about memory-OVERCLOCKING.
So yeah, when overclocking DDR5-6000 is the "sweetspot" as in that is reachable by many, but not by the majority. There is a reason why AMD had send out CPUs together with handpicked memory and instructions to use that for the reviews.... the same stick with the fanboys as it was with Zen1 and the claims of DDR4-3600/3200 sweetspot.
But i would not say there is much of a problem yet. Not only, as you said, does AMD not even support DDR5-5600 AT ALL (not even with a single stick), let alone 4 DIMMS at DDR5-6000, there are also so far no DDR5-6000 JEDEC sticks available (5600 has only recently started full production and there are very very few sticks around ). Most memory 5200 and over is glorified overclocked 4000-4800 and can just barely reach the configured timings if everything works well.
TL:DR: most DDR5-5200 and higher is not that stable OC-memory anyways so kinda to be expected that there are problems. Don't fall for some unofficial statements made online in private by a random marketing-guy.
I've commented on many 128gb ddr5 video comments...
I had a 13900k on a Asus Z690 MB, it couldn't run 32x4 ddr5 5600mhz stable past 4000mhz.
At 5600mhz xmp, it just black screens, doesn't even boot into windows.
Now if you're paying extra for 5600mhz or 6000MHz you expect it to run at that speed, not at ddr4 speeds.
For now stick to 2 sticks, max 2x32gb 64gb kit.
I am using 7950x and 64gb (2x32gb) all fine. Then i upgraded to 4x32gb (all the same) and the pc wont boot. I tried everything, and its not working. After i take two of them out, it works fine again.... Whats the reason for that? spec> Kingston fury ddr5 5200MTs, cpu 7950x . Thanks!
So if AMD knew that folks would want to run at least 128gb of ddr5 (which automatically means dual ranks) on am5, why would they not go from using 2dpc to 1dpc by adding another 2 memory channels. the threadripper stuff has 8 channels... why would they not do this on the consumer platform!? it seems to me that there is a HUUUUGE gap between high end consumer stuff right now and HEDT workstation stuff (With threadripper pro starting at what? $3k or something ridiculous and is still using the previous generation (am4) architecture which means significantly lower ipc and frequencies) and don't get me started on the paltry number of pcie lanes on modern high end consumer cpus that only have enough i/o for 2-3 m.2 drives, whatever standard i/o (usb onboard networking and audio), and a single gpu - MAYBE one more x4 device if you don't mind sharing it's bandwidth with one of your ssd's o_O and MAYBE one more 8x pcie device if you don't mind HALFING your gpu's pcie bandwidth...) if AMD is going to roll a whole new platform and Intel is going to keep rolling whole new platforms every other generation (smh), I demand some kind of in between enthusiast/creative desktop.with 16/24 core cpus in the $1000-1500 range that have at least 4 memory channels, at least 64 if not 96 pcie lanes.
Thank God for corsair they're dropping 4 dimm kits just got a 4 dimm kit of 6600mhz at 32-34-34 76 also only 91gb/s? My intel platform is pushing over 100gb/s currently with the previously mentioned 4 dimm set closer to 107 with an overclock but I'm uncomfortable with how high I have to have the voltages to maintain stability... also having the igpu enabled causes stability issues with my Intel platform
For reference I just used this to get 2 Corsair 64Gb ( 2 x 32 ) up and running at 6000-30-36-36-76, I am yet to stability test and I was booting into linux.
7900 is stable at 4800 with strix670e-f and Corsair memory 128 gb 4 sicks
With me 2 sticks work fine. But with 4 sticks at 64gb at 5200mhzt I get weird anomalies in desktop at 4800mhzt all 4 dimms work fine. I can't for the life for me find people who are using 64gb using 4 dimms. U said 4 dimms at 64gb is better but no one is using 4 dimms at 64gb and I haven't come across people that are using 64gb with 4 dimms. Have u done tests with 4 dimms with 64gb? Would love to know thank u
My 3900x can't handle 4 sticks of tridentz neo 3600 with xmp on. Get driver crashes. I should have jut replaced 2 x8gb with 2x16gb in hindsight. I guess pushing the envelope on newer stuff is painfull too haha.
The video is interesting, this “next room approach” is actually practical in most homes. I used to think that water cooling was a necessity for a Silent Gaming PC / Workstation until I tried positive air pressure (inside the case). With positive air pressure and enough high-quality fans in the proper orientation and a good enough case you can enjoy a silent PC with near water cooling temps (less than 60 Celsius under load). I use Arctic 120mm fans, they won’t go above 1000rpm often, and they are not expensive like Noctua fans. In my personal experience the Best orientation for air is top to bottom with PSU fan facing inside the case (as exhaust fan), and front to back with a WS case (with 3 front fans). Even blower style GPUs get cooled efficiently because of the fresh air being pushed / moved constantly inside the case. The key is to have more / faster intake fans, and less / slower exhaust fans, and not to have conflicting / opposing airflow; this way the air moves quickly and the fans don’t have to spin up to higher RPMs.
Is it possible to run 4x16Gb-6000-CL36 on AM5? (2x Corsair Vengeance RGB DDR5 6000MHz 32GB 2x16 GB CL36 kits). Did anyone try it? 0.o
I have 128GB in my system right now!
It's the hard drive though :(
I will stick with am4 for a long time longer, am5 has too many issues, and high cost of motherboards, ram that with am4 I can get more bang for the buck than am5. In 2 more years from today I will check it out again. Also there's a old fashion saying " If It Ant Broke Don't Fix It"! Long live am4 peace.
i have 7950x and 128gb ddr5 5600 kingston and im unable to run it faster then default 3600MT/s on asus prime X670-P.... And first boot is like 5min to get post.
Sitting here with 4x16gb sticks and can't run them higher than 4800 :/. Debating just selling them for 2x32GB but hoping some great bios update will come along
I wish you would provide a 'link' to your printed text story when you cite them. Thank you for this informative video...🇺🇸 😎👍☕
your focus on the video is kinda strange, all you talk about is GB but the core of your problem is 1dpc vs 2dpc but you link that with RAM capacity. But except for 128GB those two are not related.
4 dimms work always worse than 2 - on both AM5 and 1700
I wanted a Zen 4 PC, but the combination of expensive AM5 motherboards and the DDR5 memory problems have put me off. I’ll wait until the next generation.
if the RAM isn't 'clicking' into place, then you are installing it wrong, there is more of a 'click' on DDR5 install, than there was in DDR3 or DDR4 imho... at least on the few DDR5 I have built so far..
*EDIT* how you are installing it @ 5:49 actually proves what i'm saying, installing incorrectly....
I didn’t know DDR5 was such poop with 4 sticks. Like DDR4 you would have to compromise a bit but not 7000 to 4200 like the Intel platform featured in this video, that’s a 40% reduction! Insanity
The question is whether you require 64GB of RAM for gaming. The answer is no. At least, not for the time being. 32GB of DDR5 should suffice and will be able to run any current and future games without any issues.
@Level1Techs Hey wendel...Can you fix my computer?
I feel like this video is making excuses for poor memory support from AMD and board manufacturers. In a world where 8 channel exists wherein you can populate 6TB of ram, poor AM5 memory support boils down to AMD intentionally hosing consumers not on HEDT platforms who want to leverage more memory.
At At last.Thanks so much for doing what no one else will! Anyone running VMs, AI etc will appreciate this (and Firefox can eat 10G alone..don't know if it's memory leaks or my open 20+ tabs, but it's a hog ;-)
Shouldn't be mem leaks because of rust borrow checking
There must be something wrong with your profile or something, I'm easily running Firefox with 1500+ tabs on a host with 16 GB RAM
@@erisdiscordia5547 click on each tab so it loads the content for the page the tab represents. I had Firefox open and using 2.5GB of RAM but after clicking the other tabs that were from prior sessions it jumped up to 4.2GB (32 tabs total). I'd imagine 1,500 tabs would use quite a bit more than 16 GB unless Firefox starts unloading content for tabs that aren't one of the past nTabs viewed. Now my 4.2GB for 32 tabs vs his 10GB for "20+" tabs is a bit mismatched, so he might have an issue, but it's also possible there's much more content loaded on his 20+ tabs than my 32 tabs.
@@erisdiscordia5547 nonsense unless those tabs have yet to be loaded, and if so what good are they? All modern browsers are memory gluttons, and I suspect that trend will continue so long as developers have more and more memory overhead to work with.
Ikr, everyone is talking about creators but it’s just as painful for power users who like to research stuff without closing the tabs
64GB out of 128 on my last system was just hogged by Chrome I swear (with multiple Chrome profiles etc.)
Gotta adjust our habits now I reckon 😅