Hello guys. Got a really wierd problem, havn't seen someone feedback'd it yet.
Tried all bios versions for my evga gtx970 sc acx2.0 from this thread http://forums.evga.com/Solution-For-...-m2332911.aspx , the card version (or whatever number -2974 means) is correct. Made everything exactly following instructions, even tried different versions of nvflash software. Primary VGA is PCIE in bios setup.
After last step, when i have to activate gpu and restart system, after reboot i have black screen, no beeps from m/b, 15-20 second later my devices (keyboard, mouse) get power (led activates on all devices), and 5-10 seconds after i see the "signal not found" alert on the display.
So after that i rolled back to original bios, and i'm literally forced to use it atm.
Any suggestions? Maybe anyone had this problem?
I know this is a really old post but I just ran into this same exact issue as well! On the same card and BIOS.
It's weird because I flashed my card with one of those years back when that post was still fairly new, since I was having issues with those black screens too.
Now wanted to flash to a different version and got this same issue, had to spend several hours gutting an old office PC for a spare GPU to get output and revert the flash.
This time only the original BIOS actually works, can't get any of those to flash correctly. (They say succesful, reboot, no output) Even though I've been running the 1506 1.2v version for the past 4-5 years...
I suspect it's either something new with Windows or Nvidia drivers, but makes me wonder why my 1506 bios worked fine all this time and now I can't even go back to it.
Would be really nice to find a solution for this.