Make sure you have everything except floppy and VGA unplugged for testing phase. (since it boots still) Also try disabling everything disable-able in the BIOS

Will it not even sit at prompt without suddenly crashing? Or the execution of ANYTHING crashes it? If you can at least sit at POST or in the BIOS reliably(not crashed), you can probe around with it "running"; CPU voltage specifically.

*may not match your board

Also, feel around, see if anything is getting unusually hot. The hot thing/things around it could be bad, if voltages are good.

We it doesnt crash in bios.

Unfortunately i dont have the tech skills or equipment to perform the rest you explain here

Its a amd k5 pr100 and the jumpers and voltages are correct according to the manual of the motherboard. I think there is bad caps on the mb. But upon visual inspection i dont see any bad

Here is a foto of the mb with all jumpers if someone can understand anything!!!

I notice even with only floppy and vga it hangs also when trying to load up ms dos 6.22 boot diskette in dos while reading the floppy and loading dos 622 drivers

Have you tried different memory? If possible, I would try a pair 72 pin SIMMs rather than the SDRAM. Make sure the memory slot contacts are clean, and try running Memtest86.

tried also all types of ram. when trying to execute memtest pc hangs with 72pin fpm ran or sd ram too

Make sure level 2 cache isn't the problem.

Set settings to slowest, or disable it entirely and see if the situation improves

Were do if find level 2 cache to disable ?

bertrammatrix wrote on 2025-05-31, 15:43:

Make sure level 2 cache isn't the problem.

Set settings to slowest, or disable it entirely and see if the situation improves

Yes indeed i went into bios and disabled a lot of cache settings. Now pc works and i can run windows 95 setup and scandisk starts to load without pc hanging.

However pc is shit slow. Does disabling cache make it a 486??

Any help???

Zooming in on the above photo, it looks as though there is a buildup of grime/possible corrosion on some of the chip legs. A through cleaning and inspection of the board and the memory cache chips (and their solder joints) would be in order at this point.

Well chips seem to be corroded. I have to disable cpu internal cache and external cache settings in bios to make the pc work.

However even running dos games like ssf2t or mk2 the games are runnigmng very shitty slow like it is a 386 ? Wtf 🤣🤣🤣

Damn. That sucks about the cache. I second the motion to clean. Cleaning could fix the issue, but a resolder as well (need at least level 40 in soldering to try this) would for sure fix it, assuming that's the only problem and the cache chips are good. I'd clean it, then test again. Maybe the corrosion is bridging legs? That would be nice.

Could you run SpeedSys for us? Should be easy to acquire, if you don't have it already. I'd like to see what you're feeling.

Major Jackyl wrote on 2025-06-03, 22:43:

Damn. That sucks about the cache. I second the motion to clean. Cleaning could fix the issue, but a resolder as well (need at least level 40 in soldering to try this) would for sure fix it, assuming that's the only problem and the cache chips are good. I'd clean it, then test again. Maybe the corrosion is bridging legs? That would be nice.

Could you run SpeedSys for us? Should be easy to acquire, if you don't have it already. I'd like to see what you're feeling.

I will in a few days and upload here a screenshot for you to see!!

Major Jackyl wrote on 2025-06-03, 22:43:

Damn. That sucks about the cache. I second the motion to clean. Cleaning could fix the issue, but a resolder as well (need at least level 40 in soldering to try this) would for sure fix it, assuming that's the only problem and the cache chips are good. I'd clean it, then test again. Maybe the corrosion is bridging legs? That would be nice.

Could you run SpeedSys for us? Should be easy to acquire, if you don't have it already. I'd like to see what you're feeling.

Sorry to report that this partucular motherboard has now officially died.

It was working with disabled cpu internal and external cache. Today it booted win95 for the last time and once restarted i get infinite beeps from the pc speaker no post and nothing else.

I will just throw it in the bin and move in my life. Cant do anything else...

Case closed. Moderator can close or delete the post.

Thank you all for your patience.

Rgards
Coxilerio

Chuck it in the dishwasher first.
No soap.

You've got nothing to lose

Noooo! Beep, beep, beep, beep, beep, beep... etc. Is memory issue.

If you've truly given up, but maybe want to see someone else try to fix it:

Old hardware giveaway thread.

Somebody might want it if you'd be willing to do so. I'd take it if I could, but I don't have/want any e-payment things (for shipping, unless you are able to "send-it" anyway, I'd appreciate it <3). I can DM you if that's something you'd want/willing to do.

I'm never able to find broken boards, so helping try to fix this remotely was giving me my "fix", 🤣

Tossing it should be the VERY last step, as the board still has plenty of potential/working parts. Donate it somewhere if you can, because (I'm going to sound ridiculous) they don't make these anymore and -1 is -1 forever.

Major Jackyl wrote on 2025-06-05, 22:23:

Noooo! Beep, beep, beep, beep, beep, beep... etc. Is memory issue. […]
Show full quote

Noooo! Beep, beep, beep, beep, beep, beep... etc. Is memory issue.

If you've truly given up, but maybe want to see someone else try to fix it:

Old hardware giveaway thread.

Somebody might want it if you'd be willing to do so. I'd take it if I could, but I don't have/want any e-payment things (for shipping, unless you are able to "send-it" anyway, I'd appreciate it <3). I can DM you if that's something you'd want/willing to do.

I'm never able to find broken boards, so helping try to fix this remotely was giving me my "fix", 🤣

Tossing it should be the VERY last step, as the board still has plenty of potential/working parts. Donate it somewhere if you can, because (I'm going to sound ridiculous) they don't make these anymore and -1 is -1 forever.

Major Jackyl

Please see my following post below !!!

Regards,
Coxilerio

Major Jackyl wrote on 2025-06-05, 22:23:

Noooo! Beep, beep, beep, beep, beep, beep... etc. Is memory issue. […]
Show full quote

Noooo! Beep, beep, beep, beep, beep, beep... etc. Is memory issue.

If you've truly given up, but maybe want to see someone else try to fix it:

Old hardware giveaway thread.

Somebody might want it if you'd be willing to do so. I'd take it if I could, but I don't have/want any e-payment things (for shipping, unless you are able to "send-it" anyway, I'd appreciate it <3). I can DM you if that's something you'd want/willing to do.

I'm never able to find broken boards, so helping try to fix this remotely was giving me my "fix", 🤣

Tossing it should be the VERY last step, as the board still has plenty of potential/working parts. Donate it somewhere if you can, because (I'm going to sound ridiculous) they don't make these anymore and -1 is -1 forever.

Hello You were right. I got some new old 2x8mb memory from my friend tested and working on his old pc , and installed it on mine and it booted..

So i went in bios and disabled external cache, while i left enabled the cpu internal cache and the machine successfully booted win95 again!!

If i enable also external cache it hangs on dos mode as there are corroded those cache chips on the motherboard.

As promised to you here is speedsys screenshot i took for you to see.

Now the machine works ok in win95 . It is not slow. Before it was slow as i was disabling both cpu internal cache and external cache in bios, crippling the pc beyond 486 speed.

Please see attached . Thank you

Regards
Coxilerio

Awesome! That score looks pretty good, too! Hope it keeps workin' for you! Here's a score from my Gemlight GMB-P55IPS:

Have you tried running with autoexec/config bypassed? After SpeedSys runs the CPU test, it runs a memory test. Bad modules can crash the system when it's "determining memory speed" or anytime during the memory test. It's a good, basic check.