Hi and welcome to the Gigabyte Forum.
I think it might help if you could list your exact problems as you see them as sometimes these things can be more specific than you think.
I got a series of freeze-types:
1. I boot up my computer and after the windows logo appears and windows loads, the screen which sais Welcome with that nice blue background. Mouse hangs and my USB keyboard hangs (I test that with pressing NumLock and isn't responding). Sometimes my reset button isn't working then so I need to hold the power button for 8 seconds to turn off the system, and the leds of my roccat kone are still on. So I would say the Mobo isn't shut down correctly. Turning of the CPU makes my USB ports go offline. I tried it in SP1 and SP3, both same result.
Back to the other freezes:
2. After playing some CoD Black Ops, going back to windows and just use firefox to browse the internet, or just do nothing and leave the computer IDLE while i let the dog out. I set a timer on the computer, and it freezes after 8 till 15mins.
3. When booting up the computer fails to start at all, after loading the first screen of the bios, and goes black screen en reboots itself.
4. While loading a map playing CoD Black Ops, computer hangs.
When it's frozen and I do a boot-up sometimes it sais that Overclocking fails.....and set to basic (Standard Bios "Pop-up").
Those fixes for windows 7 I allready installed about a week and a half ago.
Is this what you were asking for ? Hope it helps to sort out where it might be wrong.
please if you think it don't belongs here please place it where it should, and sorry for my bad english.