Biostar UUD is better assembly than Shuttle HOT-433 and climbs higher.

Well yeah, but that's a problem of availability on ebay or locally.

Great find! I have an LGS stick in my box of modules I should try, not quite the same as that one though.

I’ll test Doom between my Voodoo3 and MGA card and report back.

Does the CL-5480 not work well at 60MHz fsb?

Keep us posted on what you get at 200MHz, you might have another record soon.

New Score with no peltier. Air cooling only!

AM5x86 200MHz (66x3) @5volt
Lucky Star LSD board w/8ns 256k cache mod
16MB EDO 50ns
312 Fastest, cache and memory timing
1:1/2 FSB:PCI (still some room for improvement!)
Voodoo3 2000

Phils Dosbench Quake Timedemo option C

Is Win95 or WinNT stable?

feipoa wrote on 2022-02-10, 02:30:

Is Win95 or WinNT stable?

Testing that now in Windows 98 with Prime95. Was able to run GLQuake for an hour prior. I know pshipkov sent me an image to test with, really need to give that a shot.

But to answer the question, it’s undetermined but looks promising. I’m sure I’ll fire it up tomorrow morning and it won’t be 🤣.

When on the fringe like this, there is sometimes a difference between start-up stability and steady state stability, kind of like warming up your old beater before you go hot roding.

feipoa wrote on 2022-02-10, 02:56:

When on the fringe like this, there is sometimes a difference between start-up stability and steady state stability, kind of like warming up your old beater before you go hot roding.

That’s a great analogy and I’ve for certain experienced this!

Would love to determine why the FSB:PCI ratio isn’t stable at 1:1 at 66MHz FSB. Is it the video card, is it the onboard IDE controller, or something else entirely?

I've never been able to run 66 Mhz to a 486's PCI card. Has anyone has success with this?

feipoa wrote on 2022-02-10, 03:25:

I've never been able to run 66 Mhz to a 486's PCI card. Has anyone has success with this?

For some reason I thought pshipkov and CPU Galaxy have done it, but maybe not.

Yes, with LSD I can run 1:1 at 3x66MHz. After saying that I am having a second thought now, but the other day I didnt bother changing the fsb divider jumper, so i think my statement is true unless the board auto-balances it, which I doubt.
With umc8881 based boards I need to step down to 1:1/2 that's for sure.

Chadti99, with 3-1-2 and FASTEST at 3x66MHz i see 22.2 fps in Quake1, but system is not fully stable outside the scope of DOS graphics.
That is with both MGA and Voodoo3 2000 or 3000.
I thought I posted about it in the other thread along with the notes about LGS branded memory chips that can do FASTEST, but apparently didn't.
Can double check in one of the next days.
Also, recently you posted such score. Why you are stating new achievement ?
Or did I miss your point. 😀

... and one of the sidekick LSD boards seems to be permanently dead now.
Been swapping continuously L2 cache chips on it since it was giving me trouble with recognizing them.
Inclined to turn into one time ballistic projectile targeting the trash bin.

pshipkov wrote on 2022-02-10, 08:35:

Yes, with LSD I can run 1:1 at 3x66MHz. After saying that I am having a second thought now, but the other day I didnt bother cha […]
Show full quote

Yes, with LSD I can run 1:1 at 3x66MHz. After saying that I am having a second thought now, but the other day I didnt bother changing the fsb divider jumper, so i think my statement is true unless the board auto-balances it, which I doubt.
With umc8881 based boards I need to step down to 1:1/2 that's for sure.

Chadti99, with 3-1-2 and FASTEST at 3x66MHz i see 22.2 fps in Quake1, but system is not fully stable outside the scope of DOS graphics.
That is with both MGA and Voodoo3 2000 or 3000.
I thought I posted about it in the other thread along with the notes about LGS branded memory chips that can do FASTEST, but apparently didn't.
Can double check in one of the next days.
Also, recently you posted such score. Why you are stating new achievement ?
Or did I miss your point. 😀

... and one of the sidekick LSD boards seems to be permanently dead now.
Been swapping continuously L2 cache chips on it since it was giving me trouble with recognizing them.
Inclined to turn into one time ballistic projectile targeting the trash bin.

With LSD anything is possible..

It's strange that 1:1 PCI does not work stable with Voodoo 3. Or maybe that's specific LSD problem, because it's not an issue on LSC2.

pshipkov wrote on 2022-02-10, 08:35:

Also, recently you posted such score. Why you are stating new achievement ?
Or did I miss your point. 😀

No I forgot to mention this was a new air cooled score, no peltier.

The Serpent Rider wrote on 2022-02-10, 10:26:

It's strange that 1:1 PCI does not work stable with Voodoo 3. Or maybe that's specific LSD problem, because it's not an issue on LSC2.

Yah my LSD def doesn’t seem to like 1:1 @66. I’ll transfer everything to my C2 and see what happens.

appiah4 wrote on 2022-02-10, 08:53:

pshipkov wrote on 2022-02-10, 08:35:

Yes, with LSD I can run 1:1 at 3x66MHz. After saying that I am having a second thought now, but the other day I didnt bother cha […]
Show full quote

Yes, with LSD I can run 1:1 at 3x66MHz. After saying that I am having a second thought now, but the other day I didnt bother changing the fsb divider jumper, so i think my statement is true unless the board auto-balances it, which I doubt.
With umc8881 based boards I need to step down to 1:1/2 that's for sure.

Chadti99, with 3-1-2 and FASTEST at 3x66MHz i see 22.2 fps in Quake1, but system is not fully stable outside the scope of DOS graphics.
That is with both MGA and Voodoo3 2000 or 3000.
I thought I posted about it in the other thread along with the notes about LGS branded memory chips that can do FASTEST, but apparently didn't.
Can double check in one of the next days.
Also, recently you posted such score. Why you are stating new achievement ?
Or did I miss your point. 😀

... and one of the sidekick LSD boards seems to be permanently dead now.
Been swapping continuously L2 cache chips on it since it was giving me trouble with recognizing them.
Inclined to turn into one time ballistic projectile targeting the trash bin.

With LSD anything is possible..

Lol! Don’t do drugs.

Chadti99 wrote on 2022-02-10, 12:19:

No I forgot to mention this was a new air cooled score, no peltier.

Wow, so it is @200 MHz air cooled stable?
Have made more detailed post about that motherboard and cache mod?

It’s not 100% stable, but it’s close. For my use cases of playing MP3’s and old games I think it’s 99% there at the moment. This is the first AM5x86 I’ve come across that can boot into Windows and run GLQuake for an hour on air cooling @200MHz. Running the heat test on prime95 last night did result in a freeze after about an hour and me trying to launch another app at the same time. I don’t think the motherboard is the deciding factor here but will def try it in more boards in the coming weeks to see. This particular CPU just needs ~5volts to post and run at 200. Which may be a problem for its longevity.

Chadti99 wrote on 2022-02-10, 13:07:

This particular CPU just needs ~5volts to post and run at 200. Which may be a problem for its longevity.

I did not try more than 4V, hmm..

The Am5x86 at 200 MHz used in the 486 Benchmark Comparison was also run at 5 V and stable w/ air cooling. 4 V didn't cut it.

Ok, you really missed the important information 😀
5v to cpu will affect the cpu lifespan.
Live fast, die young.

I didn't explore this area enough, but feel motivated now.
Will give the 3 200mhz capable cpus here a spin on air cooling and see what comes out of it.
But if you slap a low voltage Peltier on that magical cpu that may be enough for complete stability while still avoiding the water condensation.
At minimum you may be able to run 180mhz fully stable on air cooling with 4v or even 3.3v ?