I upgraded my computer recently to an i7 920 build that is experiencing random hardlocks. When it happens, the screen just freezes. There is no keyboard, mouse or network response, so I have to hit the reset button to get it going again. At first, it would happen every few days, but it started happening a couple times a day at the end of last week. The OS is Windows 7 Ultimate x64, clean install. There is nothing in the event viewer that points to any error.
I have run memtest on all 3 memory modules, both individually and as a set overnight. So, I'm fairly confident that the memory is good. I've reinstalled the OS and tried running Prime95. The small FFT test runs ok. The large FFT and Blend tests both cause the PC to hardlock within 30 minutes to an hour. I don't think its heat related as Realtemp shows my maximum temp at 67C under load. What should I look at next?
The system specs are as follows.
P6T Deluxe V2
Corsair XMS3 TR3X6G1600C8
i7 920
Ultra-120 extreme-1366 Rev C
XFX 8800GT 512MB reused from my old system
Corsair HX620 PSU reused from my old system
Nvidia Dual TV reused from my old system - has been removed while testing stability
Western Digital Caviar Black WD6401AALS
Samsung DVD Burner SH-S223L
P180 Case - I spent a lot of time making sure the cabling was as neat as possible, so airflow is good
The parts from my old system were working without issue at the time of the upgrade.
I have run memtest on all 3 memory modules, both individually and as a set overnight. So, I'm fairly confident that the memory is good. I've reinstalled the OS and tried running Prime95. The small FFT test runs ok. The large FFT and Blend tests both cause the PC to hardlock within 30 minutes to an hour. I don't think its heat related as Realtemp shows my maximum temp at 67C under load. What should I look at next?
The system specs are as follows.
P6T Deluxe V2
Corsair XMS3 TR3X6G1600C8
i7 920
Ultra-120 extreme-1366 Rev C
XFX 8800GT 512MB reused from my old system
Corsair HX620 PSU reused from my old system
Nvidia Dual TV reused from my old system - has been removed while testing stability
Western Digital Caviar Black WD6401AALS
Samsung DVD Burner SH-S223L
P180 Case - I spent a lot of time making sure the cabling was as neat as possible, so airflow is good
The parts from my old system were working without issue at the time of the upgrade.
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