periodic hang

[Dead...Again]

I am getting a periodic hang in Windows Vista x64. If I have the system running for more that 18 hours, sometimes the system will hang while gaming and i will get a high pitched whine on my headphones. Also, sometimes it will just hang if the system has been sitting a long time and won't wake up.

I suspect that the problem lies with my memory.

My system has an ASUS P5N32-E SLI MOBO with an E6600 OCed to 3.2 GHz. My memory is OCZ DDR2-1066 memory clocked at 1066 (4 1 GB sticks).

Do you think I should try to replace the memory?

[paceman]

Memtest86+ - Advanced Memory Diagnostic Tool

[Zenosincks]

Set your CPU to its stock speed and see if the issue disappears. I've encountered all sorts of similar freezes and loopy issues when overclocking.

[juneau]

Set your CPU to its stock speed and see if the issue disappears. I've encountered all sorts of similar freezes and loopy issues when overclocking.

This. Overclocks are the #1 cause of lockups.