PC Restart on FurMark

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I have been testing my GPU for issues, as soon as i start stress test on FurMark my PC restarts. IF i start my game (Dota 2) my PC restarts. I tried completely uninstalling my drivers and reinstalling them.

What could be the issue. Please help

Zotac Gtx 660 Synergy Edition
2 X 8 GB Corsair Vengeance ram
Corsair 450 W PSU

Looks like faulty PSU. Answer me this:

1. What is the nature of the restart? Does your PC completely turn off and then turn on again after a few seconds or does it simply reboot immediately?
2. Does the restart occur when running your benchmark/games in windowed or does it restart in fullscreen only?

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Desmond David said:
Looks like faulty PSU. Answer me this:

1. What is the nature of the restart? Does your PC completely turn off and then turn on again after a few seconds or does it simply reboot immediately?
2. Does the restart occur when running your benchmark/games in windowed or does it restart in fullscreen only?

1. All fans turn off and after a second all turn on again. quick reboot like a power interruption.
2. It crashes in both however it survives a while when in lower resolution window mode. Yes it works normally and under GPU load it restarts instantly

skypunch said:
1. All fans turn off and after a second all turn on again. quick reboot like a power interruption.
2. It crashes in both however it survives a while when in lower resolution window mode. Yes it works normally and under GPU load it restarts instantly

Yup, your PSU is faulty. I had this exact same problem (I had Corsair TX650-M). The thing is that your PSU is unable to handle the load generated by your GPU. You can confirm this by replacing using a friends borrowed PSU.

Get a another PSU and check.

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Desmond David said:
Yup, your PSU is faulty. I had this exact same problem (I had Corsair TX650-M). The thing is that your PSU is unable to handle the load generated by your GPU. You can confirm this by replacing using a friends borrowed PSU.

Get a another PSU and check.

Yup it was PSU. turns out vs450 are **** tier PSUs

skypunch said:
Yup it was PSU. turns out vs450 are **** tier PSUs

VS series is not really **** tier but its suitable for everyday use and workstations. For heavier gaming you should at least get a GS series or higher.

skypunch said:
Yup it was PSU. turns out vs450 are **** tier PSUs

How old was the PSU? And can you post the part number for it?

(CP-9020009) or
(75-001835 / CP-9020049) or
(75-001835 / CP-9020096) ??