AMD X5-133 OC to 200 MHz & Peltier Cooling / DOS & Windows 98 Benchmarks 3DFX / Worlds Fastest 486
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- Опубліковано 6 жов 2024
- #486quakerace
In this video we will push the AMD X5-133 to its limits. With active cooling by using a peltier element and a final temperature at around 0 degrees I could achieve here a new record in the Quake benchmark on a 486 setup.
here the link to my 180MHz OC Video:
• AMD X5-133 Overclocked...
Used hardware:
Lucky Star LS-486e Motherboard
Creative CT6760 3D Banshee 3Dfx
60 ns 16MB EDO memory
Links to shown UA-cam Channels and related videos:
SUCRA:
/ sucra
• #486QuakeRace Challege...
RetroTechBytes
/ retrotechbytes
• A New Challenger Enter...
This Week in Retro
/ thisweekinretro
• How fast can YOU run Q...
Music licensed through Epidemic Sound
Thanks for watching.
If you want to donate or support this channel:
paypal.me/cpug...
If you want to donate material or getting in touch with me just
comment below or send me an email: cpugalaxy@gmx.at
Find me also on / cpugalaxy
Thank you for all that you do, and thank you for making such an awesome video! Congratulations on this record--this is no easy feat, and it's impressive just how much work you've put into this and getting it stable! This is such an impressive effort and really goes beyond the limits of what I ever thought was possible with a 486 on a 500nm process! The fact that you got Windows 98 stable absolutely blows my mind. That is not always an easy feat on a 486, and on this 486 that's overclocked so heavily is absolutely mind-blowing! Funny enough, I happen to own an LS486E, but mine is the Revision D variant, and does not seem to be easily over-clockable to 66MHz, at least not without some degree of modification. 4V isn't even that much of an overvolt! Your CPU is such an awesome example of the X5, and I just cannot fathom how tough it would be to find another such CPU that's so highly overclockable! I am absolutely beyond impressed. Also, I just have to say, thank you greatly for all of your kind words and for the shoutout! I really do appreciate it, and I can't wait to see what crazy cool project you come up with next!
He's the PC loving hero we needed in the 80s and 90s and are thrilled to have now. :)
I hope these videos kickstart some competitive retro PC modding. Especially sticking to components available back then, it might reveal much about the platform which was ignored then. (People often tout the Amiga as a missed opportunity, I think the PCs of the 80s and 90s were far bigger missed opportunities as they can do so much more than what they're famous for).
While I'm waxing: How about a socket 3 performance contest parallel to the 486 contest? Pentium ODs enter the chat. ;)
Overclocking the bananas out of a 486 with a peltier is literally what my nerdy friends and I fantasized about in high school. Thank you for letting me live the dream. :D
Me too!!
sorry but does peltier in that days.
@@ytytiuiu2590 ?
Wow! I'm impressed. I would have never thought I'd see a 486 running at 200MHz stable. Good job, sir!
This is great.. my favourite PC architecture being overclocked to extreme all done over 2 decades after it's release..
Yes! 486 era is my favourite too. I don't have to watch this video to already know it's great ;) of course I'll watch it in a moment :)
Wow and my favouite as well! :) We all love 486 ))
This is like reliving my childhood. I accidentally set a 486-133 to 40mhz bus when I built a computer for someone. I saw the 160 at boot up and was like hmm. All benchmarks were much faster. We started selling them pre over clocked to customers and they were always amazed at how fast they were. It was literally about as fast as a Pentium 90-100mhz.
I'm...speechless now a bit.
It's not just chip lottery. You also needed knowledge about that mobo and its hidden 66 MHz FSB. Maximum respect, sir!
totally mind=blown you achieved this with a 486. I enjoy all your videos but this is just incredible. it brings me joy someone used a peltier again, I thought those crazy overclock projects with Celerons in the early 2000s were awesome but this takes things to a whole other level. #486quakerace
IIRC Half Life minimum requirements needed a pentium 133. I wonder how this setup performs in that game. Awesome job!
You are a true master at 486 performance tweaks. Congratulations on beating your own record. It's truly amazing that your 486 can run the Quake time demo at over 21 fps! Thank you for challenging the community with this awesome test, you can count on us for the next ones as well! Thanks for the shout out, it's a pleasure being a part of this. #486QuakeRace challenge lives on!
and at that speed, adding a voodoo 1 (if pci slots are avalible) or failing that, a top tier VLB 3d accelerator would nearly double that fps.
Uses old CPU's and married a Soviet woman. My kind of man!
“Frau Galaxy” is a very lovely and intelligent lady. He married well.
"Frau Galaxy" is an engineer I assume? 😁 most of the female engineers from eastern european countries I’ve met are pure badass and I‘m so lucky I found one who wants to be with me 😇 A romanian software engineer who programs the shit out of some of her far more experienced male colleagues and she‘s not even 30…she's just possessed 🤷🏿♂️❤️
disturbing her during one of her "debugging orgies" is about as dangerous as taking a hungry dog's bone 😂
very cool. 😉. Yeah, „Frau Galaxy“ is a Semiconductor R&D Engineer. 😇😍
Absolutely insane. Love your work with retro overclocking. Taking me back to the days when I got my Cyrix 5x86 to 133mhz and Celeron 300A to 504Mhz. Good times!
600MHz Coppermine was a real overclocking beast. 600MHz to 900MHz with just one jumper. No overvolting, no crazy cooling. And people with 1st generation Pentium 4 CPUs were very sad. Because that Celeron was faster. Also i had 5x86-133 running on stock voltage at 180MHz with just a modified Pentium Pro heatsink. 200MHz is a different story.
@@shadowflash705 even worse - Pentium 4 first generation (the ones with socket 423 and RDRAM) were very unstable when overclocked. (And yes, we did overclock our P3's usually with older motherboards and slot1->socket370 converter).
@@shadowflash705 Celeron 900 was not faster than first Pentium 4 (Willamette 1.5 Ghz). Only full Pentium 3 Coppermine aroun 1 Ghz, with 133 Mhz FSB, beat it, and only in few tests. If you take overall score, particulary after some time passed, and programs started to be better optimized for new Pentium 4 instructions and architecture, Pentium 4 started to win over Pentium 3 even in more benchmarks.
Celeron 900 with 100 Mhz FSB, was at around Pentium III 750 Level. In no way Pentium III 750 beat Pentium 4 at 1.5Ghz. I remember, only highest Athlons Thunderbird at 1.2 Ghz, beat Pentium 4 1.5 Ghz, at that time.
Problem was price, new Pentium 4 was over expensive, while performance was only slighlty better overall (and in some benchmarks even worse), than Pentium 3. But it was not slower. When you do complex benchmarks of various application, overall result is maybe 20% faster from Athlon 1.2 Ghz, or Pentium III coppermine overclocked at 150 Mhz FSB to around 1.2 Ghz.
Ohhh coppermine!!! thanks for the flood of memories
I did an insane overclock on my modded Abit BP6 motherboard. Had dual Celeron 366 running stable at 732MHz. That one was a beast, especially when ran under Linux (because Windows 2000 multi CPU scheduler was terrible compared to NIX).
I only had mine at 160MHz on air cooling. Running NFS2 on a 486 - I never even tried. That's pure alchemy!
Awesome result! There might be some wiggle room here with a voodoo 3 PCI!
Love these retro overclock videos!
Thank you so much . AMD has always been special
this... is... simply amazing...
Well done for kickstarting this contest to see how far the 486 can be pressed, you are a legend!
Sounds like a server and performs like one of that era. Pretty cool, literally.
I wonder if this overclocked CPU can handle a 320kbps MP3?
lol. i was interested on that as well and tried it. And the answer is yes. 😉
Gottseidank wieder eine neue Folge, war schon auf Entzug
Always excited to see what this channel will do next! Keep up the great content.
Thank you!
@@CPUGalaxy
I wish I could find out how old you can go and use my raytracing mods.
I speculate assuming the software was compatible, a 8800 ultra could run stuff 1024x768 to 1280x1024 provided it was older. Like the half life source mod.
@@CPUGalaxy If you're going to try to push for higher overclocks in the future, I suggest going with the Shuttle HOT-433 as your motherboard of choice. It has many useful features, but the most important is the FSB speeds it can pull off. Using unofficial settings you can get a sky-high FSB speed of 83MHz, which is practically unheard of for a Socket 3 board.
Also the fact that you tested for stability is great, I got my 5x86 to 160 and it was pretty fast at quake (17.4) but it would not end a Doom timedemo, yours is just flawless!
Nice that you ran glquake. Was hoping to se a 486 getting in to the 30fps territory.
Whats next, LN2 and 240Mhz ;)
Maybe some other tweaks to cache or bios settings to crack 30? I don't know. Maybe dual voodoo2s might help. If there are any crystals or clock generators on the board maybe they could be replaced to get the bus speed higher still.
stronger 3d accelerator card (voodoo 2 or 3) should do that with clocks as they are here.
Hats off! This is excellent, well documented and very intresting for a nerd! More of this! :)
Small tip: Quake slightly scales with increased RAM (1-5%) in my benchmarks. Try using 32MB instead of 16. Otherwise I'm really impressed. FPU almost beats a POD @ 100MHz, while the integer performance is considerably ahead.
I spent several years using an AMD DX4 at 120MHz (which was trivial then, all you needed to do was change the FSB jumper, you didn't need to give it more voltage or more cooling or anything). I already had much more powerful workstations then, but I kept the 486 around for many more years long after I'd retired even the newer machines just because it was so unique and the last of its kind on my desk. Your channel is bringing back so much nostalgia.
I remember the "dx4 overdrive" that I thought my sensei just gave to me. I think he bought it with his own money for me. Well, the early Pentium world did exist then, but thinking back, he probably "didnt just have that laying around". And knew what to send me to add to my computer.
Ahh, beat me to this setup! Also running an LS-486 and a peltier cooler. Though I was going to run a Rendition Verite for the video card but that's just to start. 3D Blaster Bashee and V3 2000 also stand by to potentially make some gains! Work is in the way of videos at the moment though... Gotta pay the bills!
I bet that copper sink was boiling hot towards the end of the run there. Very cool. A little nuts, but very cool. Lol...
I got flashbacks of me trying to run Quake on a 486DX2 way back then! My 13 year old self would have loved to own this! Great video!
I first played Quake on its release on a DX2/66 and it was unplayable to me.. But a year or so later I got a DX4/100 and it ran Quake very playable and I finished the game on this PC.. infact the original minimum requirements for Quake 1.0 was a DX4/100 even printed on the early retail boxes.. this was changed to Pentium 75 on later releases - probably because the only way it ran playable on a DX4/100 is if you had tweaked it right out with memory timings and has no less than one of the faster VLB video cards.
Nice vídeo as always, one of my favorite channels, regards from Argentina!!!
What a blast! Awesome :)
The good old times where we were after fps. :D
..'cause the young ones nowadays ain't? 😀
@@dallesamllhals9161 meaning every little thing mattered more. nowadays you just slap a beefy gpu in a ryzen or i-series, (or even fx9590 AM3+) and you're pretty much done. doesn't take any real talent like it did back then.
This is amazing i never thinked a 486 cpu could reach this insane clock speed you did a very great job keep up with this kind of projects
Nice work! Only a couple frames short of my K6-2/375 PC in GLQuake, really impressive.
I had a K6-2 350 running at 400 with just a minor voltage increase. I put a 486 heatsink/fan on my Voodoo3 2000, and got it running at 3500 speed. It was an insane system for 1999!
It still astounds me that all of this is going on so many years after the 486DX4 was released. I have so much love for the platform, as it was my gaming setup as a teenager, so to see it achieving such incredible numbers in 2021 is awesome. All my projects are on hold at the moment, but I can't wait to have another bash, and I think people will keep on having a go at the record for years to come. Loved seeing nearly 30fps in GLQuake on a 486!
That's awesome! I knew you if someone would be able to reach that! Love your videos, really well-put together! Greetings from Sweden.
Incredibly well presented content. Good job!
Thank you!
I salute you sir - I know the amount of time spent and trial and error it took to deliver us this great video was probably a lot - the 486 holds a special place in my life and seeing this made me dust off my old Taken socket 3 motherboard which to my surprise still worked
That thermal paste application at 7:17 though! :D :D
Yup! Stick to "The Verge"-WAY!
A 5x86-133 was our first serious PC at home. When I was a kiddo I fantasized with that speed. Literally a nerd wet dream come true.
More interesting, our moderboard (which I still have) is from LS, the layout is similar but newer revision...
HELL YEAH LETS TRY 😍
I don't know why... but I enjoy watching this video over and over again. The ability to overclock an old CPU to such a high frequency is just absolutely amazing!
Very good. However, there are some integrated 486 CPU for embedded use that clock at 800 MHz. No, I'm not joking. You can find them online
@@UserUser-zc6fx miles.co.uk/catalogue/cm-497_4/
So kann der Sonntag nur gut werden. Tasse черный чай und 30min CPU Galaxy. Absoluter Wahnsinn, dass der AMD 200MHz und das Board stabil 66er FSB mitmacht. Mal sehen, ob jemand einen Chiller oder ne Stickstoffkühlung draufsetzt, um auf 4*60MHZ zu kommen.
What a Slick setup, cpu cooling wise cant be beat so the only way to beat the scores would be with the gpu side, thermal sticky pads with little copper heatsinks on the vram and i geuss water cooling the gpu.
When the Pentium came out, it was A Big Deal. Ads on primetime television for a CPU, which wasn't normal before that. Yet this test shows a 486 class chip crushing it. It makes the whole non-MMX class of Pentiums seem a bit overhyped when you could get there with a 486 instead.
but the Pentium *was* a big deal... with Quake the 486/200MHz produced 21.6 fps, which is about as fast as a Pentium 75 (see eg thandor.net/benchmark/33), so the Pentium is a factor 2.6 faster at the same clock speed, a huge improvement! In other benchmarks the Pentium advantage is not as big, but still should be around a factor 2x in favour of the Pentium: a huge jump in performance
@@luckyluckydog123 The early socket 4 and 5 pentiums cost about $800-2000 with inflation today, while the AMD X5 was around $250-350 with inflation, the fact that you're even comparing the two just shows how you weren't even around to buy CPUs back then.
@@luckyluckydog123 Erh..And if you had a Socket 3 (2) motherboard? Would you call the Pentium overdrives cheap?
@@JanghanHong Hear, hear :-)
@@JanghanHong Even if the AMD was much cheaper, these two were competitors. And your price comparisons are very very unfair here. While a Pentium had a much higher MSRP, their performance was guaranteed. For this setup, you would have to buy an X5, that is tested for huge overclocking potential, and if you want that as a "guaranteed" you would have to pay extra on top of the MSRP, you would spend time and money on searching for that option. You would also spend extra on custom cooling. So while you are keen to throw around personal attacks to invalidate points made by others, the first thing anyone notices from your content is that you are dishonest.
We can also understand that building anything that can hold a world record often depends on knowledge, engineering time, etc. and that doesn't come cheap and wasn't available back then. We can also compare 486 and Pentium boards (and platforms) for features, long term compatibility. And if the 486 isn't very future proof and you pay an already decent price for a short useful lifetime, while the other system as a whole is only a bit more expensive, but has a far longer useful lifetime, then the other system is a better deal. And that is why Pentium won over X5 and similar platforms, why the whole industry evolved that way. When you come with a theory that is already disproved by history and you bend the truth, throw around personal attacks to support it, etc. that won't make you right, but it might speak about your own character.
Awesome!!! This is on another level 🙂
Great work. We thought 50mhz was crazy fast for a 486 at one point. 200mhz would have blown our mind. It was not until I had a dual pentium pro that I went beyond 200mhz for the first time, it cost a fortune too!
incredibly video and incredibly great CPU, my compliment
The cooling system is impressive! And by having that processor not exceed 1 degree Celsius while playing and testing it out with such intensive computations, it shows the great care and assurance that you took so that the processor will be intact. It is at the same time funny and to be appreciated for the super-extra safety measures!
The Prize at the end made the day! Specially engineered for the processor itself! :))
Great video!
Thank you!
Great work! Congrats on the trophy!
Very impressive, thanks for sharing
Nice! This is real dedication!
Keep up the great work...
I love this!
Never knew of anyone overclocking 486's seriously back in the day, it's super interesting to see what they're capable of. Also never really saw a fast 486 paired with a 3DFX card before, it's surprisingly capable... I know the graphics card is the key there but genuinely looks like the 486 at this speed could compete with a slower Pentium.
would blow away any pre-mmx pentium, roughly equal to pentium-mmx running 133 (board didn't support higher multipliers, but had jumpers to set voltage right for mmx chip.)
Ok, that was nice to watch! Back in the days, I had an X5-133 ADZ. I tried to overclock it as well. At 160MHz, my trusty Trident 9440 VLB-Card couldn't keep up with the 40MHz Bus speed, leaving pixel errors, until I found a jumper on it to solve that issue. The System then did run somewhat stable with Windows 95, so I tried to run it at 180MHz, but during boot, it quickly freezed while performing POST. Using a small heat sink with a 40x40x10 fan was definitively not enough :D Thanks for the video!
Gods above...! Even at the lowest volume for the video so I could still hear _you_ I find, I still hear the fan being louder. I wouldn't even want to be in the same postal code as that 486 blazing away like that. Well done on the record!
I thought I remembered reading back in the mid 90's that AMD was looking at potentially doing a process shrink on their 486 chips and adding higher 5x or 5.5x multipliers (mapped to lower ones like 1.5x, 2x and so on) in order to sell 166-200 mhz chips but it never happened due to things like Quake that made the Pentium's FPU really shine compared to any 486. It may have been a contributing factor to why AMD got a sort of late start on the K5 chip.
That being said it's impressive to see that chip running at 200 mhz and at 66 mhz FSB as well! Anything beyond 40-50 mhz FSB is pretty much unheard of on 486 class boards.
I believe the PCI bus data transfer rate being low on the SIS chipsets was common until at least the super socket 7 days if not into the slot 1/socket 370 days as well. For many years if you wanted the fastest PCI bus you had to use an Intel chipset. That makes a lot of sense since Intel created the PCI spec in the first place!
I think you’ll hang onto that trophy for a very long time. Your previous record was already insane.
... Well done ... Quite remarkable degree of 200 MHz of CPU speed and 66mhz of mainboard FSB speed.
Quite well worked and studied project of overclocking a 80486 CPU+80486 mainboard set.
Very informative video and your video is making me smile.
New projects from you about 80486 CPU's + mainboards or newer and older set of PC hardware I would try to watch.
Thanks for the information and efforts.
Didn't expect to hear of the LS-486 boards here. That's what was in my grandfather's PC, before he upgraded it to a Pentium 100 around 1995.
This is the best thing I have seen in a long time.......
Man, I miss 3DFX....
A very nice show. I overclock the intel pentium 133 to 200 MHz in the old days, of course without MMX, congratulations on reaching 198 MHz on 486, challenge accepted :)
Im running a Celeron 300A @ 600/133 aircooled. But that's a childsplay! Thank you for your Video! Great work!
Wow, i dont know how i missed this video until now. I ran my 5x86-133 with a Diamond Stealth 32 VLB card at 3x50mhz FSB because it was faster than 4x40mhz despite the lower raw clock speed. I would have loved to have those FSB speeds and raw clock to be that high. I ended up building a P54-120@133mhz setup to play Quake, but i always dreamed of 4x50mhz on the 486. This is even a bit better with the higher FSB and would have been a killer setup had AMD ever officially released a 200mhz 5x86.
would be interesting if this 486 could run resident evil 1 and 2 diablo 1 or dungeon keeper 1
great video i love the 486 architecture
Congratulations for this outstanding achievement! I'm always inspired with your passion. You've set the bar really high.
My AMD 5x86-133 story: Back around 1990 I had an IBM PS/2 Model 30-286 desktop PC kicking around, 10 Mhz intel 80286, 1 MB RAM, 1 wait state, and onboard VGA graphics. Around mid-December 1993, I replaced the system board with a Reply Corporation 486 "Turbo" board, which came with a 80486 SX-25 MHz CPU. Eventually I replaced that CPU with a Kingston AMD 5x86-133 MHz CPU (3.45 V regulator / adapter & built-in heat sink and fan). There was a bus speed jumper on the board that I set to 33 MHz, so CPU ran at 133 MHz. CPU did write-through cache only (16 KB), but still the whole system really did run like a Pentium 75 MHz based PC, except for FPU performance, which was roughly on par with the FPU in the 66 MHz Pentium (P5).
I also ran 32 MB of 70ns RAM (2 x 16MB) at 0 wait states in this system, without issue. Memory ran interleaved in fast page mode, so 95% of it ran at around 32ns, so it was effectively like 30 MB of L2 cache.
There was also 1 MB of Cirrus Logic CL GD-5428 video on this Reply Turbo board (VESA Local Bus), so it could support 640x480x16 million colors ("True Color"), and 1024 x 768 x 32K, and 1152x864x256.
The hard drive was nothing special, a Quantum Fireball 500 MB IDE drive, straight IDE (ISA), so I got only about 2 MB/sec out of that, but still fast enough. I ganged a TEAC 52x CD-ROM drive onto the same IDE channel without issue.
Sound card was a Creative Labs Sound Blaster 16 Value card, (straight 16-bit ISA, no ASP chip).
The system ran Windows 98, OS/2 2.1, Sun Solaris 7 x86, and RedHat Linux 5.1 (with "Enlightenment") like the proverbial scalded weasel, and a few times while running RH Linux, I had several remote users logged into this system (shell accounts, text only), from several locations in the U.S. and Canada
I recall one time (booted into RH Linux) I was using the GIMP graphics program, and I saw that 3 or 4 of these users logged into their accounts, and this hot-rodded PS/2 system didn't even break into a sweat.
This was around the 1993 - 1999 time frame. I had a frac T1 line going into my house (772 KBps) back then. Good times.
yeah high end computer for the time.... i had my first computer in september 1992 a 386 sx33 with 2 meg ram later upgraded in 1994 with a dx4 100 486 double cd and 16 edo ram with sb16 value same as you ... i had the original 8900c trident vga ISA video card and i could still run Quake and Red alert just fine with win 95... i used this computer up to about 2003 but it was useless by then... ball mice were not responisve and i could not open mp3 files or had no usb or zip drive
On the Quake console run “vid_mode 16” to switch to VESA 320x200. Assuming the same mode as my Banshee. Should be a hair faster on the LS486E.
Hi Sir! only one word AMAZING !!!!! I want to thank you the time and effort to do this video and share it with us. Amazing setup
Interesting try and benchmark. Didnt know that 486DX4 could reach such freq.
Never even knew that Socket 3 boards can run with 66MHz FSB, this is insane!
Wow you beat my setup from 1995. By a good part. 160Mhz was very easy to achieve but I already managed 180Mhz back then though I had one or two crashes over the course of two days.. System was a SiS 85C417 board.
For anyone interested, the song used during the build is Milva - Who Knew.
To be honest, I think you deserve a trophy for putting up with that CPU fan for so long!
Fantastic video!
I knew this was coming but I was still surprised by the results! Great Video!
AWESOME video, as always! exactly the thing i wanted to see you do! :) congratulations on the wr! 👏
Always something special 👍 What a great little chip, and congratulations Sir, that Quake timedemo was awesome to watch.
Excellent work! Challenge accepted. :D
cool. I am waiting for that. 😉
If someone ever would have told me things like "i was able to play NFS2se on a 486 and it was playable" i would have suggested him to seek professional help... Well today this opinion changed! Awesome!
I played Doom on a 386 SX, soo..... "playable" was a state of mind lol. Esp at age 12.
Seeing a 486 run quake as well as that is insane.
Do you have nexgen motherboard and CPUs In you collection??
I want to see similar tests with these nexgen CPUs.
Your 486 would have stomped our family's Pentium back in that day. Nicely done!
Impressive and amazing! Miss your videos hope you are doing fine.
I have love/hate relationship with peltier coolers. I've killed PSUs and CPUs using them, not to mention racking up a large electric bill power it and all the fans needed.
All to get an extra 30Mhz.
A suggestion about Quake1 tuning: Back in the days I used the command line parameter -winmem %amountKB to give quake as much memory as possible.
Maybe this could help to get more fps out of it even on slow machines.
Insane speed, for sure, that's like HUGE overclocking for the general CPU microarchitecture, given the fact that it was designed to run at 25 MHz initially. Impressive speed.
Awesome!!! Lets see if that trophy will change hands!!!!
It's a very nice job for you doing with the 486! 😀😀 Well done it desired to 486 Quake Race Champion. :D
Amazing work. Great video. Thank you!
Holy cow!
This was pretty amazing to watch. Great stuff
I kind of skipped out on the early 32-bit PC platforms. To be fair I was born in 92 and both the computers I had in the late 90s for my room and not the family machine were both already discontinued by a while before I got them (97/98). I got as birthday gifts from my uncle (saved both machines from his workplace that were tossing them out) an Apple IIGS fully loaded out with the best expansion/accelerator you could get at the time in 97 and the following year I got a Macintosh IIci completely maxed out and expanded with the best you could get at the time in 98. Those are the machines I learned Assembly and C on and still use both these days programming random projects.
I did build random 386 and 486 machines out of the spare parts from machines at my Dad's business but I never spent a lot of time of them because I didn't really like Assembly for the 386/486 machines compared to the IIGS/IIci platforms. It's great to see videos on this channel that let me explore the platforms vicariously.
I have been messing around with a Chaintech 486SOM with the same chipset and I have the same CPU. There is no undocumented FSB options here but pin 17 of the SC464 clock generator if pulled low (internally pulled high, nothing connected to the pin on the PCB) it is possible to achieve FSB speeds of 30, 60, 80, and 66.6MHz. On my CPU I can manage only 60MHz resulting in a clock speed of 180MHz, not quite the 200MHz you have here but IMO still pretty impressive, unfortunately I need to run at 5V for it to become stable. Note I am not using a peltier device, but just a large recycled heatsink from an AMD Vega56 which has an unusual design of a heat pipe like heat-plate/spreader.
I have also done a ton of work on this chipset over the last year and have written tools to allow programming of the chipset registers to improve memory bandwidth that the bios does not expose. Configuring the cache TAG to 7-bit for example has a massive impact on memory throughput.
Now we're getting somewhere. 180Mhz on air is fine and all, but I wanted to see what happened at ludicrous speed. Thank you for going to plaid.
I once got a 486 66Mhz up to 112mhz, using a 28*4 and manually replenished ice with a custom cooler block (kinda similar to modern LN2 Overclocking) and a small drain siphon :D
I think I was about 15 or so at the time! - was great fun!
You would get slightly better heat transfer on your peltier if you put a thin copper heat speader that contacts the entire bottom of the element. You left cooling capacity on the table. :-)
Spreading thermal paste with a finger. What a savage! :)
Ya know, the console background in Quake does cause frame drops. Not sure why anyone would let the console float up so slowly just to make sure the result is legal. I normally make sure the console speed is set to 99999 or something fast (Command: scr_conspeed "99999") and make sure the console is toggled immediately (Command: toggleconsole). Pretty sure your 180MHz result would of had been better, but I don't really do my own benchmarks for this kind of stuff. Just my opinion, I would make that a rule so all benchmarks' framerates isn't being held back. Also, pretty sure there are some console commands (and even a more optimized client, like ProQuake) that can even optimize the performance of GL Quake. So, perhaps Quake will reach 60fps on a 486, theoretically (which I'm curious if it could with console commands like 'gl_polyblend' set to 0). I have a whole config of optimizations that would help just because in Quake, FPS is a lovely thing. :)
If anything and you do rerun tests, just make sure scr_conspeed is set to a faster value, and type "timedemo demo1.dem; toggleconsole" on the same console line. I do this for all my Quake benchmarks, even though my optimizations aren't exactly legal for this 'race'. For just plain gaming, this is what I do for myself. Some performance optimizations that console commands can do are basically quality of life changes in my opinion. (gl_polyblend "0", gl_picmip "3", pq_drawfps "1" in ProQuake, gl_texturemode "GL_NEAREST_MIPMAP_LINEAR", scr_conspeed "99999".)
Now that is one screaming fast 486, and I don't just mean because of the loud fan :). Nice job getting the system to perform stable at these clocks and timings. I'm always looking forward to what you come up with next on your channel.
Oh cool, I have this board, I didn't know that there were a undocumented 66MHz option.
I'm not sure if it will beat the AMD5x86@200MHz results, but the last few Cyrix 5x86 100-120MHz can be overclocked to 133MHz, there are some rare models that are stable at 66MHz apparently, and the motherboard can unlock few features that might be able to compete with the AMD.
Also, Intel's Pentium Overdrive doesn't count, I hate seeing them in 486 competitions.
Cyrix/IBM 5x86 2x66 MHz (with instructions enabled) has the same speed in Quake as AMD 3x60 MHz
@@lukas12p Hey, is the 133/66 Cyrix 5x86 the same silicon as the 133/33 Cyrix 5x86? the latter is obtainable, but the 133/66 seems to be basically vaporware.
@@JanghanHong Cyrix 5x86 are 33 or 40 MHz FSB, how You set Your motherboard is up to You :) There are versions where 2x means 4x like in AMD 5x86. I have one Cyrix like that, 120 MHz and I can't run it 2x60 or 2x66, because it translate it to 4x..
Great results thanks for showing this off