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My pc off and on itself when I power on

i am using vs 550 watt power supply wen i turn on my pc its on and off itself again on 3-5 sec. after and running smoothly.i ma using

Gigabyte h61m-ds2,

Intel g630 processor 2.7Ghz.,

4+2 ddr3 1600 mhz,

Sapphire hd 7770 2gb vapor-x,

160gb+1tb+1tb+EX500gb hdds,

Circle 830 cabinet with 5 fans

USB 3.0 PCI card ,

Corsair 550 smps,

Canon LBP 2900B additional cartridge,

Canon lide120 scanner,

D-LINK DIR 600 L,

2.0 Lenovo multimedia speakers,

Deepcooler Frostwin V2. cooler

LG DVD-R/W

Microsoft lifecam vx-1000,

Apc600v ups,pagaria

automatic voltage stabilizer

Intex 19" TFT monitor,

Marvo km400 combo multi color,

5050 RGB with IR Remote still upgrading....

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Chosen Solution

Does it eventually boot up or not. Check the unused power lines in the computer from the power supply are not shorting against the case or anywhere else . Also check that none of the power lines in the computer are note frayed or bared

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Most Helpful Answer

Hi, you can try these steps..

1. did you check your cpu fan? is it working?

2. make sure your switch button is working or stuck a bit?

3. to make sure your pc not overheating, you must open the case and touch the cpu heatsink, is the fan working or not?

4. Are you able to bootup pc, or just blank screen?

thanks.

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