Reply 140 of 767, by JazeFox
matcarfer wrote on 2020-06-16, 02:21:P3 866 + Soyo SY-7VBA133 + 512 (I know, too fast)
OPTi 82C931 ExpertColor MED3931
Yes, that's the problem. In my Celeron 566 system with similar VIA chipset board, these OPTi cards without proper oscillator behave the same.
You can solve it if you have some soldering skills:
For MED3931 card:
1- Remove R1 SMD resistor
2- Add a 14.318 Mhz crystal oscillator to X1
Optionally, you can add ~10pF SMD capacitors to C9 and C10
Problem solved 😀
Before posting, please, read the FAQ in the first post and TXT! IT's important if you want a good support. Thanks!
Respect, and be happy! 😀