Update: The CPU was dead, so I received my replacement today I confirmed it was dead by testing it in a working Cougar Point system.
This post will be edited with the latest information, so you shouldn't have to read the whole thread.
SYSTEM SPECS
Mobo: ASUS P8P67 Pro 3.0
CPU: 2600K @4.6GHz, 1.3611VID, 24/7 F@H Stable ~65*C
CPU Heatsink: NH-D14
RAM: MV-3V4G3D/US (Samsung "Magic" RAM), 16GiB, Stock BIOS Settings
PSU: SeaSonic X-850
Main OS HDD: WD Black 1TB
GPU: GTX 570
SUMMARY
I set my memory overclock to 2133MHz, and adjusted the timings and voltages accordingly. Then I booted into Win7PE, and about halfway through the boot my PC shut itself off. I was unable to turn it back on, so I tried to clear the CMOS. The PC would still not boot, except when the 8Pin EPS is unplugged.
BACKGROUND
I test my overclocks in Win7PE with Prime95 Blend 14400GB. On November 17 I decided to stress test the following memory overclock:
- 2133MHz
- 11-11-11-28-2, tWCL 9
- 1.575V
- 1.1VCCIO
INCIDENT
I booted into Win7PE, which runs off a USB 3.0 flash drive, and my PC shut off during the windows loading screen. I didn't notice anything abnormal when it shut off, so I pressed the power button to turn it back on. The PC did not POST.
ACTION TAKEN
Here is what I have done to troubleshoot, but with some obvious steps skipped:
1. Cleared the CMOS twice by following the instructions in my manual, but my PC would still not POST after each attempt.
2. Tried the alternate instructions 3 times (removing the battery), and my PC was unable to POST after each try.
3. Unplugged the 24Pin from my mobo, and stuck a paper clip in the Power On (Green wire) and Ground (Black wire) to start the PSU.
4. Plugged in the PSU and turned it on, but the result was same as the first time I tried turning the PC back on.
5. Measured the voltages on the 24Pin, and got
- 3.25V on Power On (Green wire).
- 5.12V on +5VSB (Purple wire).
- 0.00V on Everything else.
6. Checked the PCI-E and 4Pin peripheral voltage, but there was none.
7. Tried resetting the PSU by following the instructions in the manual, but the PC would still not start.
8. Unplugged everything but the 24Pin from my PSU.
9. Turned on the PSU, and checked the voltages on the 24Pin, and got the following results:
- 5.05V
- 3.38V
- 12.30V
So the power supply works.
10. Plugged in the 8Pin EPS, but the PSU would not turn on.
11. Unplugged the 8Pin EPS, then plugged in everything else.
12. Turned on the PSU, and observed everything turn on.
13. Measured the 8Pin EPS voltage, and the result was 12.30V.
OTHER INFORMATION
When I press the power button, it sounds like its going to turn on for a split second, but then powers down. None of the components actually power on though, so the sound must be coming from the PSU. The PSU is ~1.5 years old, and has been under light (CPU only) load for most of it's life.
QUESTION(S)
What should I do next to troubleshoot?
What component(s) need(s) to be replaced?
This post will be edited with the latest information, so you shouldn't have to read the whole thread.
SYSTEM SPECS
Mobo: ASUS P8P67 Pro 3.0
CPU: 2600K @4.6GHz, 1.3611VID, 24/7 F@H Stable ~65*C
CPU Heatsink: NH-D14
RAM: MV-3V4G3D/US (Samsung "Magic" RAM), 16GiB, Stock BIOS Settings
PSU: SeaSonic X-850
Main OS HDD: WD Black 1TB
GPU: GTX 570
SUMMARY
I set my memory overclock to 2133MHz, and adjusted the timings and voltages accordingly. Then I booted into Win7PE, and about halfway through the boot my PC shut itself off. I was unable to turn it back on, so I tried to clear the CMOS. The PC would still not boot, except when the 8Pin EPS is unplugged.
BACKGROUND
I test my overclocks in Win7PE with Prime95 Blend 14400GB. On November 17 I decided to stress test the following memory overclock:
- 2133MHz
- 11-11-11-28-2, tWCL 9
- 1.575V
- 1.1VCCIO
INCIDENT
I booted into Win7PE, which runs off a USB 3.0 flash drive, and my PC shut off during the windows loading screen. I didn't notice anything abnormal when it shut off, so I pressed the power button to turn it back on. The PC did not POST.
ACTION TAKEN
Here is what I have done to troubleshoot, but with some obvious steps skipped:
1. Cleared the CMOS twice by following the instructions in my manual, but my PC would still not POST after each attempt.
2. Tried the alternate instructions 3 times (removing the battery), and my PC was unable to POST after each try.
3. Unplugged the 24Pin from my mobo, and stuck a paper clip in the Power On (Green wire) and Ground (Black wire) to start the PSU.
4. Plugged in the PSU and turned it on, but the result was same as the first time I tried turning the PC back on.
5. Measured the voltages on the 24Pin, and got
- 3.25V on Power On (Green wire).
- 5.12V on +5VSB (Purple wire).
- 0.00V on Everything else.
6. Checked the PCI-E and 4Pin peripheral voltage, but there was none.
7. Tried resetting the PSU by following the instructions in the manual, but the PC would still not start.
8. Unplugged everything but the 24Pin from my PSU.
9. Turned on the PSU, and checked the voltages on the 24Pin, and got the following results:
- 5.05V
- 3.38V
- 12.30V
So the power supply works.
10. Plugged in the 8Pin EPS, but the PSU would not turn on.
11. Unplugged the 8Pin EPS, then plugged in everything else.
12. Turned on the PSU, and observed everything turn on.
13. Measured the 8Pin EPS voltage, and the result was 12.30V.
OTHER INFORMATION
When I press the power button, it sounds like its going to turn on for a split second, but then powers down. None of the components actually power on though, so the sound must be coming from the PSU. The PSU is ~1.5 years old, and has been under light (CPU only) load for most of it's life.
QUESTION(S)
What should I do next to troubleshoot?
What component(s) need(s) to be replaced?