Did you reset the bios to defaults before and after flashing? Sometimes settings already made in the bios are not there or in a different location in the new one. I know it should not matter but somehow sometimes it does.

Taking out the battery and leaving the board without power should do that also. And yes, I tried that. After flashing nothing works, besided the CPU fan spinning. No beeps, no video signal, nothing....

Attatched is the previous BIOS version dated 12/06/1999.

Thank you, I will give that a try.

You're very welcome. Let us know wether it helped once you tried it. 😀

I just had a little time to try this BIOS on my mainboard. And yes, success! Thank you Doornkaat!
After flashing, I rebooted the system and it worked. I now have a BIOS that is more than a year newer than the version that was originally on it. I have yet to test if it now supports AMD K6-2 CPUs. That was not mentioned in the release notes for the BIOS. Does anybody if it should?

Happy to help! 😀 I don't know wether this BIOS supports the latest K6-2(+) K6-III(+) though. Sorry.
I dug up another image of the latest BIOS. Would you care to try it to help determine wether the one hosted by Jan Steunebrink may be corrupted?

Edit: Misread your post, I'm very optimistic a 1999 BIOS for this board will have support for K6-2 processors. 😀
Edit 2: Found this in the manual (also attatched):

(only version 1.0 or above does support processor of 400/450MHzAMD K6-2/3)

You should be fine! 😁

Copied this text off the Epox archive pages - seems to have had K6-2 support from early on

This (live) archive link also seems to be a later revision than vp300411

https://web.archive.org/web/20021126111852/ht … ios/socket7.htm

Thank you both for digging up the extra information. Looks like I will be trying a K6-2 in this mainboard. It appears that I am lucky to have a revision 1.0 board and that support for K6-2 CPUs was added after the date the original BIOS on my mainboard had. I hope to find out some time tomorrow.....

Well, I tried a few AMD K6-2 CPUs today, but they don't work. I changed the jumper setting for the Vcore to 2.2V and set the jumpers for bus speed and multiplier, but all the board does is beep at me.... A long, semi-continuous beep. And as I do not have AMD K6 (or even K5) CPUs, I cannot test those. All I have is number of Pentium and Pentium MMX CPUs (which do work) and about a dozen K6-2 CPUs, ranging from 333MHz to 500MHz. I did not try all of them, but the ones I tried all gave the same result. And when I switch back to an Intel CPU, all is fine. Hmmm.
One thing I did not mention before, is that one of the capacitors near the CPU appears to have been replaced. But apparently that does not matter for the Intel CPUs.

On my Epox EP58-MVP3C-M, using that 2000 BIOS, my K6-3D 233AFR (early K6-2) does work. However, mine is a patched version from Wimsbios, to support 128GB HDDs, so I have no idea if this has also been patched to support K6-2 CPUs. I'll attach it. If this doesn't work, it might still be a hardware incompatibility on your board.

The newer bios can be patched if wanted. Just say when.
the later bios mentioned on that archive link is a 2Mbit variety, I think it's for even later revisions of the MVP3C

Weird that it doesn't work with al least one of the bios revisions listed - what are the specs of the chips you did try (any pics). Maybe it's an issue with processor cores (Chomper vs Chomper XT)

A long, semi-continuous beep. - That sounds like a power problem to me. Any pics of the area around the socket?

Finally I got round to taking some pictures of the area around the CPU socket.
One capacitor is clearly different from the others and it has been soldered in later.

Yeah that should definitely support K6-2's - I have the identical board on the shelf next to me with a 500 Mhz K6-2 installed.

I'd have to put it in a case to test it for sure but I'm pretty confident I ran it this way, the jumpers are all set appropriately.

Edit: And yes, that one capacitor is clearly different than the one on my board as well.

Edit-er: And I also just noticed that you've got the board set to 2.8V right now - what CPU do you have installed?

That would be a Pentium MMX 233MHz. And the board runs fine with that.

Just wanted to make sure - I've definitely made that mistake a few times, could have sworn I changed it but somehow didn't.

http://web.inter.nl.net/hcc/J.Steunebrink/k6plus.htm

I use the bios from this page, it adds k6+ support and it works, make sure your getting the mvp3c-m