FIC 486-GVT-2 Main Board

[gnallkoff]

Hi,
I got a 486 M.B. GVT-2. As I tried to start it the board showed nothing, even the post code card didn't, only that there is power.
I found out that there is a chip missing. That is the GAL 16 V8 B chip. manufacturer Lattice half conductors.

My question is: Is that chip absolutly necessary or only optional. If necessary, does sombody can help me to obtain that chip?

BRG Jo

 

[channelmaniac]

GAL chip is a custom programmed logic array. Without knowing what it was programmed with you would need to reverse engineer the hardware and firmware to recreate the programming. It is no small task and something totally out of my league.