Olivetti M4-40 wont post
Posted on 2023-02-19, 12:18
My good friend gave this 486 PC couple of months ago. When he gave it to me it was working fine, but i haven't tested it as i wanted to upgrade it to 486DX2. So i modded the board to make ordinary DX2 work in 487 socket (B14 to ground with 33ohm resistor). Unfortunately after i did the mod it wont …