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Computer won't power on

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So, I've finally given up and now asking for advice..

Recently my computer stopped powering on at all. There was a storm that hit us and when I next saw my computer it was powered off and would not turn on. The other computers in the house were fine, so not sure if storm is cause.

When I try to turn my computer on nothing happens at all. If I turn the switch on the psu the green light on the front comes on for a mere second and nothing more.

So I figured the PSU was the issue. I bought a new one, it arrived and of course it exploded with a pop and smoke. The computer DID turn on using it, but only for a good 5-10 seconds before the PSU went out.

Using that, I knew it was a crap PSU and bought a Corsair one. It arrived today, I set it up annndd..nothing. Same green light happens. Except even less responsive than my first PSU.

Is it possible the PSU came DoA? Or maybe I just ruined my computer with the crap PSU? I have no idea anymore and it's pretty stressing. :)

If anyone has some advice towards this I will love you forever!


Orig PSU:
XG PSU 480w www.xgbox.com

Exploded PSU:
Logisys 480w ATX P4 Power Supply

Second PSU:
CORSAIR CMPSU-650TX 650W ATX12V / EPS12V SLI Ready CrossFire Ready 80 PLUS Certified Active PFC Compatible with Core i7 Power Supply

Running 3 gigs Corsair RAM, Sound Blaster Audigy, Nvidia GTS 250, AMD Athlon 64 X2 6000+ CPU
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OK by your description I am guessing this is a desktop system?

There was a storm that hit us and when I next saw my computer it was powered off and would not turn on

Was this system on surge protected circuit?
It is possible for one system to take the main hit of a electric shock.
There is a way to test just the MOBO and that is a two step process. If you are willing I am supplying the steps below. Let us know what the results are.

Disconnect everything from the Motherboard except

* keyboard
* mouse
* video output
* 20+4 powercable
* 4/8 pin 12v wire both coming from the powersupply,
* Cpu fan wire
* power and reset button to the case
*case speaker

Now you should have NOTHING connected to the motherboard except what was listed above.

The goal here is just to test the mobo:

If the computer still will not boot up the please remove the motherboard from the computer along with the power supply

place the motherboard on a piece of card board larger than the motherboard,

Install the cpu with, 1 stick ram in dimm 1, power supply, case switch and case speaker
Connect ps2 mouse and keyboard along with the monitor
Repeat the above and power on
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Are you still having problems with your issue?
It has been 3 days since your last response and I was wondering if the issue has been resolved?
If so can you explain how it was resolved so others may be able to fix it if they have the same issue.
If not please let us know and we can continue with helping you to resolve the issue.
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