Quote:It's not the best idea to always use voltage unlocked bios. I'd say the very first bios you should try for unlock is your vendor's stock bios from 290X.
Anyway, now try to do this:
1. Do you have on board video in your CPU? Remove GPU card and boot into MB setup on on board video. Will it work?
2. If yes, set the primary video priority to on board video (important step!).
3. Reinstall GPU card and try to boot. If it boot, check device list for presence of ati adapter or try ati flash -ai to search for it.
If card will be detected, re flash it to stock bios. If no, or PC refuses to boot with GPU card in any slot with on board video priority enforced, your card may be HW faulty.