Hi there, Working on my brothers PC trying to install Windows 7 on it after the previous Windows 7 installation failed to boot up. Problem is I can't even run the installation disc because the PC keeps restarting itself just after the "Starting Windows" screen disappears. I've been over to a Windows 7 forum and tried everything they've told me and more to no avail. Now I know it's not a problem with anything else but either the Mobo or CPU (the CPU is an AMD Phenom X4 Quad Core 9950 2.6GHz Black Edition Socket AM2+), but I think it's the mobo. All the other components (Graphics card, RAM etc.) have been replaced with working components from my own PC that uses the same GA-MA770-DS3 board (same rev. 00 in all). I took the HDD (Seagate 160GB SATA) from my bro's PC and installed Windows 7 no prob on my PC, but when I put it back in his, even with all the drivers removed manually, it still just restarts the PC. I was able to have XP running on it before so I decided to give up on 7 and put XP on it, it ran the initial disc fine but I noticed after restarts during the installation, the screen would just be black and do nothing, I had to keep manually restarting it. Finally when it did install, it failed to boot and kept restarting the PC just like Windows 7.
I don't think there is anything wrong with the CPU, it doesn't seem to be damaged in anyway, so I believe it has to be something to do with the Mobo. I've updated it with the latest BIOS, F8F which has made no difference so now I have very little idea on what the problem is...