First post, by Intel486dx33
Restoring an old Dell Optiplex 433/L ( Intel 486dx-33)
I worked on this before and I think I might have shorted something out messing around with the IDE cables and sound card.
I get NO video. It use to work. Video was working fine before. But now I get no video.
I tried an ISA video card but still no video.
I disconnected all the IDE/Floppy ribbons and removed the ram, but still no video.
It does not even beep and error codes.
I see the keyboard lights work on power up.
but I don't think it is posting as I don't hear any beeps.
I could not find a manual on this computer.
The motherboard does have silkscreen labels for the jumper settings.
I reset the bios and tried to disable the onboard video and use an ISA video card. but no luck.
I put a NEW battery in it.
Do you think something is shorted on the motherboard ?
It sounds like it is booting when I turn it on.
I hear the drive spin up and reading.
power supply and power switch appear to be good and working.
What do you think ?