Tom's Hardware > Forum > Homebuilt Systems > General Homebuilt > Computer powers on then off
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7jcs7   09-25-2009 at 06:12:39 AM

At first my computer started to power on for a few seconds then power off, then power on for good and boot into windows, I could play games and everything. then it started powering on then off for good. I opened the case and powered it on and all the fans were running and then it powered off about 3 seconds later. I think it is a bad PSU but I have no way of knowing, If anyone knows what it can be for sure, or a best guess, that would help alot thanks.

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Bronze Home Brew badge niklas_13   09-25-2009 at 06:26:57 AM
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read this http://www.tomshardware.com/forum/ [...] t-problems try the steps then post back if you still have problems.

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------------------------------ P55-UD4P / i5 750 @ 3.6 180X20 / GSkill 1600 @ 1420 7-7-7-22 / WD Black 640 / HD 5850 / Corsair 750 / Win 7
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7jcs7   09-29-2009 at 09:57:16 PM
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I went through the list of possible problems and I dont think any are the problem. My computer one day when I turned it on shut down then powered on again for good. It progressively got worse untill It would only power on for a few seconds then power off. So I RMA'd the power supply. Because I think it wasn't supplying power efficently. When I get a new powersupply and put it in the computer and if the problem persists, what do you think I should do. Any thoughts would be most helpfull.

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7jcs7   09-30-2009 at 03:08:36 AM
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niklas_13 wrote :

read this http://www.tomshardware.com/forum/ [...] t-problems try the steps then post back if you still have problems.




I looked at the link and I don't think the problem is caused by any of them. I RMA'd the powersupply and I should be getting a new on soon. But if the problem persists what do you think the problem is. My computer would turn on then off then on and boot into windows, and I could play games and email and everything, then the computer would only power on for a few seconds then power off for good, I hope it is just a bad powersupply. Thanks for your imput on this matter.

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pauldemonkey   09-30-2009 at 03:16:28 AM
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Sounds like it is the power supply. Also, you could be underpowering the computer, but if that was the case it wouldn't get progressively worse. If you have a spare power supply u can try and power it that way to see if it will work.

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Bronze Home Brew badge jsc   09-30-2009 at 07:54:41 PM
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If the problem persists, please post specs of the system, including those of any changed parts such as the original PSU.

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