I just finished building/restoring a socket 7 with an early version of the FIC VT-503 motherboard with a BIOS date of October 1997. My intent with the computer was to use one of two TNT M64s that I have based on what I've heard about that card''s compatibility. Both cards will boot my socket 370 system. However, with this new system, one card throws a BIOS error and the other will boot the system but shows corruption on the screen. The system will boot and provide good video quality with the card that came with system, a trident unit I believe.

What gives? I know the TNT M64 is a few years newer than the motherboard, but the motherboard seems fairly modern for a socket 7 board, as it supports SDRAM and I think K6-2 processors. So I thought the card would work fine.