Does the computer work with the card in? Normal beep and POST?

no it wont boot at all. No beep, nothing. My CRT say no Signal.

Does the computer start POSTing if you remove the video bios eprom?

zb10948 wrote on 2025-03-21, 16:09:

Does the computer start POSTing if you remove the video bios eprom?

i removed the bios chip, still no posting.

Ok, so in direction of electrical problem.
Have you done a thorough visual inspection? It appears to me, on a picture, there is via damage around the C36 label just above the 14.31 MHz crystal

good eye, i checked it but lines are ok , only flux or dirt.
i dont see any damage under my scope.
considering the two damaged isa pins im atm thinking about the video memory glock generator the ICS2494AN.
But i dont know if that chip can did result the problem.

The ISA contacts might've been just worn out by janking the card out of the slot with pivot being in the middle.

Also there are some reference designs in this document
http://www.bitsavers.org/components/tsengLabs … roller_1990.pdf

But it seems to be based on 4 discreete crystals and not a single clockgen.

i found the issue! Some short on the GPU lines. reflowed and card is back to life!

Great!