Hi!, i have the same problema too, this is my system:
CPU phenom II x4 955
2x1Gb 1066 Mhz
1x2Gb 1066 Mhz
HDD Seagate 500gb 16mg
sapphire 4870 1gb vapor-x
PSU cooler master real power pro 850w
Could you resolve the problem?, please if you do, can you tell me what exactly you do? thanks!
Yes I was able to resolve the problem
You must flash the Bios to the newest one from the Gigabyte site
In my case The Bios had set the ram to 1.5 volts and it needed to be 1.9 volts
What kind of ram do you have ?????
What voltage dose it say it needs to run????
Go into the bios and manually set the timings and voltage I think this will sole your problems
Let me know
Good Luck !!!!!!!