First post, by flynth
I'm in a process of setting up a 386sx-25 system. However I'm having a weird issue. The system sometimes runs fine, other times it boots in mono. One just has to try many times then to get color again.
My motherboard has a mono/color jumper. I replaced it. I also tried scratching through any possible corrosion on the pins by repeatedly removing and installing the jumper. This made no difference.
The video card is trident 9000. It has no mono/color selection. It does however have one jumper I'm not sure how works. It is the "bios auto detect configuration" jumper. Could it being on enable have anything to do with this?
I tried wiggling the monitor cable etc, with o difference.
So I wonder if I have a dodgy video card, or a motherboard that somehow thinks it is supposed to output mono instead of color. Unfortunately I haven't got another isa video card to test here.