That Mitac board may actually be a Tyan motherboard, is listed under the Mitac > Tyan products. http://web.archive.org/web/20020612154840/htt … 14vu/5114vu.htm
This person flashed with the Mitac BIOS and it worked fine: https://www.wimsbios.com/forum/ram-compatibil … 4vu-t11961.html
Too bad the BIOS is soldered 🙁

Horun wrote on 2021-11-14, 02:36:

That Mitac board may actually be a Tyan motherboard, is listed under the Mitac > Tyan products. http://web.archive.org/web/20020612154840/htt … 14vu/5114vu.htm
This person flashed with the Mitac BIOS and it worked fine: https://www.wimsbios.com/forum/ram-compatibil … 4vu-t11961.html
Too bad the BIOS is soldered 🙁

Thanks! Interesting to see that this is a Tyan product. I'm curious to see if it will support anything besides AMD K6, K6-2 and K6-3 CPUs. I was able to find some unpublished jumper settings to run a P-233MMX. Surprisingly the board did boot with a P-133, but locked up soon afterwards and wouldn't boot. Thankfully the board is OK as well as the CPU.

BIOS flash was a success using Uniflash (Award Flash just halts with a mismatch error). Now the board correctly identifies the CPU as an IDT Winchip C6 instead of an AMD K6, and unlocked the settings.

Hey brickpad, I'm working on the same machine and would also like to get rid of the crappy compaq bios.

Which BIOS version did you go with? This is what I've found so far.

https://www.win3x.org/uh19/motherboards/9594

Thanks!

Hello everyone!

I´m trying to accomplish a bios change, from the factory Compaq to a Mitac 5114VU one.
This because I have issues with a PCI Diamond Stealth III S540 (Savage4 Pro), which freezes after some minutes Windows(98SE) is on.
It is not the card itself, I´ve tried it in other systems without issues.
There seems to be an IRQ conflict related to ACPI or the sort.
Moving the card to other PCI slots did not help, nor trying different drivers.

@Brickpad Is this the mismatch error you encountered?

This is my current BIOS:

I didn´t try to proceed with the Bios flashing despite the message, don´t know if it would let me do it or just halt there...
I´m hesitant, I wouldn´t like to brick the board...

Con 2 botones wrote on 2024-01-16, 13:23:

Hello everyone! […]
Show full quote

Hello everyone!

I´m trying to accomplish a bios change, from the factory Compaq to a Mitac 5114VU one.
This because I have issues with a PCI Diamond Stealth III S540 (Savage4 Pro), which freezes after some minutes Windows(98SE) is on.
It is not the card itself, I´ve tried it in other systems without issues.
There seems to be an IRQ conflict related to ACPI or the sort.
Moving the card to other PCI slots did not help, nor trying different drivers.

@Brickpad Is this the mismatch error you encountered?

This is my current BIOS:

I didn´t try to proceed with the Bios flashing despite the message, don´t know if it would let me do it or just halt there...
I´m hesitant, I wouldn´t like to brick the board...

Yes, I ran into this problem when using the Award Flash program. You need to use Uniflash in order to flash the board with the Mitac BIOS image.