Hi guys! I've just recently joined the forums, so welcome to everybody 
I finally have the chance after 3 years to overclock my i7 975. However, i've seem to have hit a wall when overclocking.
I can move my machine from the stock 3.33GHz to a stable 3.8GHz. When I tried anything above that, it could sometimes do well for 1-2 hours, but during prolonged periods of stress testing, it reboots (screen turns glitchy and then restarts, no BSOD).
My setup is as follows:
CPU: Intel i7 975
CPU Cooler: Noctua NH-D14
Motherboard: Gigabyte EX58-UD3R
RAM: 8GB Dual Channel Patriot @ 1600MHz 9-9-9-24
PSU: Antec HGC-520W
Case: HAF 932
GFX: MSI 2GB R6950
Even if I add more and more voltage on the CPU VCore (1.275V, 1.28V 1.3V), I can't seem to get it stable.
Here are some of my suspicions:
1) The power supply could not supply enough power to the system, thus triggering an unexpected reboot.
2) My CPU might have hit the limit for the heat (maybe?)
Any constructive input would be appreciated!
Edited by classycanadian - 11/11/12 at 8:14pm
I finally have the chance after 3 years to overclock my i7 975. However, i've seem to have hit a wall when overclocking.
I can move my machine from the stock 3.33GHz to a stable 3.8GHz. When I tried anything above that, it could sometimes do well for 1-2 hours, but during prolonged periods of stress testing, it reboots (screen turns glitchy and then restarts, no BSOD).
My setup is as follows:
CPU: Intel i7 975
CPU Cooler: Noctua NH-D14
Motherboard: Gigabyte EX58-UD3R
RAM: 8GB Dual Channel Patriot @ 1600MHz 9-9-9-24
PSU: Antec HGC-520W
Case: HAF 932
GFX: MSI 2GB R6950
Even if I add more and more voltage on the CPU VCore (1.275V, 1.28V 1.3V), I can't seem to get it stable.
Here are some of my suspicions:
1) The power supply could not supply enough power to the system, thus triggering an unexpected reboot.
2) My CPU might have hit the limit for the heat (maybe?)
Any constructive input would be appreciated!
Edited by classycanadian - 11/11/12 at 8:14pm
