- Oct 6, 2017
- 43
- 0
- 560
Computer shuts off randomly (after hours unplugged)
Scenario:
1. Computer shuts off on cold boot (after hours unplugged/switched off) at Windows desktop around 2 minutes.
2. After the shut off - powering on the PC again and it runs perfectly (passed all burn-in test). Runs pc games perfectly 8 hours to 12 hours. Ex. Wasteland 2
Troubleshooting I made:
1. Cleaned PC thoroughly using compressed air.
2. New thermal paste applied on the processor.
3. Video card and Memory contact cleaned with rubber eraser.
4. Reconnected all cables and checked for loose cables.
5. Bought a new power supply. (Deepcool DE530 400 watt rated)
6. Removed all hardware. Only the Processor and motherboard are running.
7. Memtest and MEmtest86 memory at boot up. Passed. No errors.
8. New CMOS battery
9. Bios jumper reset at motherboard.
10. New Windows 7 home installation. Dual boot removed. (Linux)
11. Capacitors not bloated. (top and bottom)
12. Bread-boarding (motherboard and Processor only) still shuts off at cold first boot.
13. CMOS downgraded to original version.
14. Checked power strip and Automatic Voltage Stabilizer/Regulator for fault.
After troubleshooting it still shuts off randomly at the first cold boot.
Processor: AMD Athlon X3 435
Motherboard: Asrock N68C-S-UCC motherboard.
DIMM: 2x 2gb DDR3 memory kit 1333mhz
ROM: Asus DVD rom RW
Nvdia GT630 DDR3
Old PSU: Great Wall Black series 450wl (old)
Brand New PSU bought to check if old PSU had a problem): Deepcool DE530 rated 400 watts
Scenario:
1. Computer shuts off on cold boot (after hours unplugged/switched off) at Windows desktop around 2 minutes.
2. After the shut off - powering on the PC again and it runs perfectly (passed all burn-in test). Runs pc games perfectly 8 hours to 12 hours. Ex. Wasteland 2
Troubleshooting I made:
1. Cleaned PC thoroughly using compressed air.
2. New thermal paste applied on the processor.
3. Video card and Memory contact cleaned with rubber eraser.
4. Reconnected all cables and checked for loose cables.
5. Bought a new power supply. (Deepcool DE530 400 watt rated)
6. Removed all hardware. Only the Processor and motherboard are running.
7. Memtest and MEmtest86 memory at boot up. Passed. No errors.
8. New CMOS battery
9. Bios jumper reset at motherboard.
10. New Windows 7 home installation. Dual boot removed. (Linux)
11. Capacitors not bloated. (top and bottom)
12. Bread-boarding (motherboard and Processor only) still shuts off at cold first boot.
13. CMOS downgraded to original version.
14. Checked power strip and Automatic Voltage Stabilizer/Regulator for fault.
After troubleshooting it still shuts off randomly at the first cold boot.
Processor: AMD Athlon X3 435
Motherboard: Asrock N68C-S-UCC motherboard.
DIMM: 2x 2gb DDR3 memory kit 1333mhz
ROM: Asus DVD rom RW
Nvdia GT630 DDR3
Old PSU: Great Wall Black series 450wl (old)
Brand New PSU bought to check if old PSU had a problem): Deepcool DE530 rated 400 watts
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