I'd like to report a bad BIOS for PCPartner VIB804DSE (35-8804) https://www.ultimateretro.net/en/motherboards/6632#
There are different variants depending on what Super I/O chip is on the mobo, mine has the ITE so that's the BIOS I've tried. I had to program it directly into the chip via programmer since the original BIOS got somehow erased, and this one wouldn't work - it dies with code 41 and beeps that suggest memory issues or BIOS corruption.
Then I found this page http://bios.rom.by/PCPartner/old.htm but unfortunately the files are gone. But the vib804dse.zip filename is rather unique, so I searched for it and found it here: https://www.elhvb.com/mobokive/archive/Clayto … bios/index.html
This ZIP not only contains the BIOSes for all I/O chips, but also the flashing program and a brief README file. Again I've programmed the image directly to my chip (and it is a different file) and this one booted without any issues. Perhaps it would be possible to ZIP the existing file but add (bad) or (suspect) or something of the sort to the name, in case other files do work and it's a newer version, and then mirror the working file I found.
BTW the photo used for VIB804DSE is actually that of VIB804DS mobo. Not sure what the difference is other than E variant having a newer 586B chipset (instead of 586A). I had to peel of PC Partner sticker to find which one I have.
Another correction is to the Unknown (SiS471 3VLB) https://www.ultimateretro.net/en/motherboards/10291
First of all, this mobo requires 36-bit SIMMs (the 72 pin ones). This is rather important, it will not work at all with the more common 32-bit (no parity) ones. Also seems very picky about 8MiB SIMMs, it's better to use 4, 16 or 32 ones.
Listed CPU clocks are also incorrect, unless there are more clock chip variants - it should be 20, 25, 33, 40. It is possible to set 50MHz as well but it's not listed on the mobo silkscreen, seems to work though. VLB does not like clocks above 33MHz no matter the jumper settings but it could be down to my CL cards. At 33 it's perfectly stable. Also has cold boot issues with SX CPUs, this goes away once the mobo warms up. It's something NMI related and doesn't affect DX CPUs as these are jumpered differently. Again, this could be a problem with my particular mobo but I would list that in the known issues maybe?