990FXA-UD5 with FX-8120, windows install hangs

[pennywyz]

Hello, I searched the forums and tried different suggestions but nothing has worked and I am close to my wits end with this.

I recently decided to upgrade and got the following:

990FXA-UD5 rev 1.1, bios version F6
AMD FX-8120
G.SKILL Ripjaws 1866 (PC3 14900) RAM (2x4gb)

I used these from a previous build:

AMD Radeon HD 6950 (Diamond)
Corsair 850w power supply
WD Caviar 1.5 Tb HD

I tried to install Windows 7 which hung up at various points during multiple tries. I tried windows XP install which also failed. I tried the RAM at 1866, 1600, 1333 with no success, and tried upping the voltage a bit also without success. I also tried the memory in different slots and each stick by itself without success. I ran memtest and it never made it through a single pass without hanging, one time it showed two errors before hanging up, so I figured the RAM could be bad and RMA'd it.

While I was waiting for the RAM to be replaced, I tried Corsair Vengeance 1600 RAM (2x2gb) and had the exact same issues as before, including the hang-ups during memtest. Also, the BIOS had the memory running at 1333 by default and when I tried to change it to 1600 the system wouldn't even post until I cleared the CMOS. I thought maybe a memory slot on the motherboard was bad (and one of the plastic clips broke off) so I decided to RMA it.

The replacement motherboard and memory are back and I'm still having the exact same problems.  It has become very frustrating. The windows discs install without problem on my other PC. The video card, power supply, DVD drive and HD also work perfectly on the other PC.

I don't know if I should RMA the processor at this point, or maybe update the BIOS to f7 ? I'm really at a loss. I have built maybe 7 or 8 systems over the past few years and am constantly upgrading/changing things out and have never had a problem like this. Does anyone have any suggestions?

[autotech]

Start at basics. Just install windows with processor, ram, video card, hard drive attached to sata 0 port. No internal or external usb devices hooked up yet. Only 1 monitor hooked up you get the idea. If you are using a sata dvd drive make sure it is on the last sata ports and set to ide mode i myself prefer to install with a usb drive. Only 1 stick of ram at default settings and make sure after you strip it to just what you have to have reset cmos.  See if this helps i have had trouble with xp and windows 7 with different hardware and usually stripping it helps to get windows installed and updated then install the rest of your hardware.