I built a PC for a friend using the following components:
Intel Core i7 920
3x Patriot DDR3-12800 9-9-9-24 @1.65V (PVT36G1600ELK)
Asrock X58 Extreme
XFX HD5870
Rosewill 530W PSU (RG530-2) (checked with an Antec PSU tester, all fine, but 5V rail runs at 5.4V, and Hardware Monitor (from cpuid) showed -5V rail at -8.70V with this and two other power supplies)
Western Digital Black 1TB
LG 24x DVD Burner - SATA
Cooler was a Cooler Master Hyper 212 (RR-B10-212P-GP), installed using Arctic Silver 5 Thermal Compound.
Case was a Thermaltake V9 that had the side panel fan removed because it would not fit with the heatsink installed.
All bios options set to default, unable to check bios version at current time.
When the system was originally installed, my friend forgot to place the motherboard spacers in between the mobo and case, so it was shorting for a bit until I came over and noticed it. It worked fine after the spacers were installed.
Originally the system was paired with 3x OCZ GOLD DDR3-12800 8-8-8-24 (OCZ3G1600LV6GK). The first kit of ram worked great, except one of the sticks was DOA so it had to be RMAd. The second set caused a large amount of memory errors inside and outside of windows, regardless if set at auto or manually setting the clocks and timings, or configuration of memory. Also, memtest 86+ ver 2.11 would fail at random points during test #4, usually with 50-500 errors on stick 1 near 1100-1200MB, and sometimes it would fail near 500MB and 5000-5500MB. It wouldn't always fail on test #4, though, only some of the passes. After this I tried the Patriot sticks and it worked only when set to Auto, not when using the XMP profile (1600MHz, 9-9-9-24 timings, 1.65V), which caused prime95 to fail almost instantly. Same results with manual settings for clocks, timings, and for voltages set to 1.654V or to auto. Setting to auto for all settings gave no errors after 1 hour.
This computer was for a friend, and I didn't have much time to start overclocking, so I told them to try using the EZ OC setting in the bios to overclock to 3.8GHz. I assumed this should be fine if he runs prime95 and makes sure there are no errors. He calls me after 27 min of p95 running without errors, after which the system shutoff and won't turn back on at all. System was cool to the touch immediately after shutting down, and pressing power button does nothing. I walked him through resetting the CMOS jumper, pressing "reset CMOS" button on back, then I told him to set jumper to clear, remove CMOS battery, remove all RAM, disconnected and switched off the PSU, held power button for 5 seconds, waited 15 minutes, and put 1 stick of RAM in the first slot, inserted battery, and it still would not post.
I then asked him to take the mobo out of the case, thinking it might have been a short. Still no post with bare mobo, but lights and fans would start up for half a second before becoming unresponsive again. He also reseated the CPU without luck.
I'm going to his place to check everything tomorrow, but I wanna know if there as anything in specific that anyone can recommend I check? I'm bringing my own psu, psu tester, but I don't have spare DDR3 ram or and i7 920 to test with. Could it be PSU, MOBO, or CPU? Please, any advice at all would be highly appreciated.
Thank you.
Intel Core i7 920
3x Patriot DDR3-12800 9-9-9-24 @1.65V (PVT36G1600ELK)
Asrock X58 Extreme
XFX HD5870
Rosewill 530W PSU (RG530-2) (checked with an Antec PSU tester, all fine, but 5V rail runs at 5.4V, and Hardware Monitor (from cpuid) showed -5V rail at -8.70V with this and two other power supplies)
Western Digital Black 1TB
LG 24x DVD Burner - SATA
Cooler was a Cooler Master Hyper 212 (RR-B10-212P-GP), installed using Arctic Silver 5 Thermal Compound.
Case was a Thermaltake V9 that had the side panel fan removed because it would not fit with the heatsink installed.
All bios options set to default, unable to check bios version at current time.
When the system was originally installed, my friend forgot to place the motherboard spacers in between the mobo and case, so it was shorting for a bit until I came over and noticed it. It worked fine after the spacers were installed.
Originally the system was paired with 3x OCZ GOLD DDR3-12800 8-8-8-24 (OCZ3G1600LV6GK). The first kit of ram worked great, except one of the sticks was DOA so it had to be RMAd. The second set caused a large amount of memory errors inside and outside of windows, regardless if set at auto or manually setting the clocks and timings, or configuration of memory. Also, memtest 86+ ver 2.11 would fail at random points during test #4, usually with 50-500 errors on stick 1 near 1100-1200MB, and sometimes it would fail near 500MB and 5000-5500MB. It wouldn't always fail on test #4, though, only some of the passes. After this I tried the Patriot sticks and it worked only when set to Auto, not when using the XMP profile (1600MHz, 9-9-9-24 timings, 1.65V), which caused prime95 to fail almost instantly. Same results with manual settings for clocks, timings, and for voltages set to 1.654V or to auto. Setting to auto for all settings gave no errors after 1 hour.
This computer was for a friend, and I didn't have much time to start overclocking, so I told them to try using the EZ OC setting in the bios to overclock to 3.8GHz. I assumed this should be fine if he runs prime95 and makes sure there are no errors. He calls me after 27 min of p95 running without errors, after which the system shutoff and won't turn back on at all. System was cool to the touch immediately after shutting down, and pressing power button does nothing. I walked him through resetting the CMOS jumper, pressing "reset CMOS" button on back, then I told him to set jumper to clear, remove CMOS battery, remove all RAM, disconnected and switched off the PSU, held power button for 5 seconds, waited 15 minutes, and put 1 stick of RAM in the first slot, inserted battery, and it still would not post.
I then asked him to take the mobo out of the case, thinking it might have been a short. Still no post with bare mobo, but lights and fans would start up for half a second before becoming unresponsive again. He also reseated the CPU without luck.
I'm going to his place to check everything tomorrow, but I wanna know if there as anything in specific that anyone can recommend I check? I'm bringing my own psu, psu tester, but I don't have spare DDR3 ram or and i7 920 to test with. Could it be PSU, MOBO, or CPU? Please, any advice at all would be highly appreciated.
Thank you.