Official GIGABYTE Forum

GA-Z77X-UD3H (rev. 1.1) - error d6, even with pcie nvidia card

Hi i have a problem getting my new z77 board GA-Z77X-UD3H (rev. 1.1) working.
I have a Intel i5 3350P CPU without graphic included so i buy a 610 nvidia card.

At boot it show 1 short time the "dual bios logo" and then reboots an dhe debug LED show d6 (no output...).

I testen every PCIe slot, an other grafic card (nv 570) and also same problem.

The interesting point is when i switch to the backup bios it boots up normal..

Why?

Thx!