I am having a very similar problem. System crashed while gaming and now beeps at 2b code then stays at 7f code with no display at all to work it. If i press delete at 7f code it goes to 3f, but have not been able to solve the issue. Is it possible to flash the bios or repair windows without any display, i mean how would u go about doing such a thing? Thanks in advance for any help!
P.S. I already tried reseating the video card, tried a different known working video card, reseating the ram, a different monitor and resetting the cmos.