Hi,
It appears as though the DX58SO "Smackover" (and from reading these forums, many other intel mobos as well) has a bios incompatibility with the new 780. (Note: People appear to be having trouble with the Titan as well from reading around)
- The brand of 780 I have is EVGA, and is in the 3GB variant. (Other computer specs: 16GB RAM, i7 980)
- I tested the card in a slightly older ASUS motherboard, worked perfectly fine.
- I am running the latest BIOS for the DX58SO. I also previously tried a BIOS for it released in 2011.
- The computer shows the BIOS splash screen, but is unable to open F2 settings. In the bottom of the screen 5A shows, but I feel that is unrelated since it relates to SATA devices.
- I tried unplugging all SATA devices, no difference. Also tried all but the boot device, no difference.
- Tried many variations of supplying power to the card. All seem to work, as the card lights up and spins. The machine has plenty of juice to power this card.
- The DX58SO beeps twice over the course of about 60 seconds displaying the splash screen, then beeps twice quickly to show a black screen. After that, there no activity whatsoever (no HDD lights, etc) If I press keys, it will beep after a delay of about 5 seconds.
Is there any chance of this being fixed? My guess is that the UEFI vBIOS on the GPU isn't compatible for some reason with the DX58SO, even though it looks like it should be. I have contacted EVGA about the issue and it has been sent off to their product team as well.
Thanks!