Hello all
Mainboard will not boot after changes are made to bios, XMP profile for memory not accepted, processor multiplier up or down not accepted. All cases individualy tell "system can not boot and optimized defaults should be loaded". Even changing memory multiplyer to what the auto setting is, stops boot process.
If booted in windows with default settings, all is fine, Multiplier of processor can go to 44 whitout voltage increase.
Also sometimes no boot and when entering Bios only dual boot text at top appears, no bios settings or 3d Bios
With default options ;often system just hangs on blackscreen and after a while says drive read problem.
Bios F10 F11 and F12 same issue.
Once booted (after x restarts) in windows all is fine and joy.
Ivy Bridge 3750K
850W Antec PSU
Sapphire ATI HD6950 2GB
920 H2o Antec Cooler
8 GB Corsair vengeance 1866
S511 Adata 64GB SSD as boot disk
First time gigabyte buyer and not realy happy...