Windows 7: System Hangs On Trying to Overclock AMD Phenom II CPU

I have just built a new system consistsing of the following:



Asus M5A78L/USB3 AMD Socket AM3
Kingston 8GB (2x4GB) DDR3 1333MHz i5 Memory Kit Non-ECC CL9
AMD Phenom II X2 555 Black Edition 3.2GHz Socket AM3 6MB Cache
Western Digital WD20EARS 2TB Hard Drive SATAII 64MB Cache - OEM Caviar Green
Powercool 550W 80plus Certified Efficienty PSU - 1x PCI-E 4x SATA
Arctic Cooling Freezer 7 Pro rev 2 Socket 775, 1156, 1155, 1366, AM2, AM3 Heatpipe CPU Cooler
Windows 7 Home Premium 64-Bit SP1

The initial build of the system went as planned until I activated the CPU overclocker on the ASUS motherboard. When this is on the system seems to boot ok and starts to load windows but then hangs and all I get is a blank black screen. I would be happier and the problem easier to diagnose if it was a BSOD rahter than leaving me clueless. No other changes in the BIOS were made.

I have had to reboot and reset the motherboard to the default values to get it to work ok.

Has anyone had a similar issue or can help me identify what could be wrong?

Overclocking isn't just a simple "turn on the overclocking feature and it works". It takes a lot of trial and error to get a proper overclock. I would suggest you head over to Overclockers Forums - The Performance Computing Community and start doing a lot of research.

This is what many people don't understand about overclocking. If it doesn't happen or work in a stable manner, there's nothing wrong with your processor. As long as it runs at stock speeds and at a normal temp, then nothing is wrong at all. Overclocking is far from an exact science, and there are no guarantees offered. You have to accept the possibility that your system may not have any overclocking headroom. If you want to try and find out, be my guest...just remember that it is always possible.

blt0409, please do not make the same post in more than one forum. I already replied to you here: Overclocking Problem with AMD Phenom II x2 555