1) Do you get any beeps after POST?
No.
2) Is your hard drive new or have you used it before?
Everything is new.
3) Is your Win7 disk genuine?
I tried genuine (same problem)
Also tried Microsoft.Windows.7.Enterprise.x64.Integrated.December.2010-BIE (same problem).
I always get the same error, no matter what win 7 i use.
4) Why are you using X58 memory in your motherboard?
What's wrong with the memory? I bought it because it was the only memory that was in store.
and it should work with my MB, because gygabyte verified it:
http://download.gigabyte.eu/FileList/Memory/mb_memory_ga-p55a-ud4.pdfI am using only two ram slots.