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Old 03-19-2007, 09:50 AM   #1
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Default Pc Turns Off After 5 seconds

hi i just built my new pc and when i turn it on within about 3-7 seconds it turns itself back off it is not the cpu overheating coz it is practically cold

i have now returned the pc just for convinience but n e ideaas what it cud have been ?
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Old 03-19-2007, 09:53 AM   #2
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Default Re: Pc Turns Off After 5 seconds

May have been a power supply issue. The PSU may have not been putting out correct voltages and that causes a few errors. I had a problem liek that really annoying!
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Old 03-19-2007, 09:55 AM   #3
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Default Re: Pc Turns Off After 5 seconds

Could also be shorting somewhere on the motherboard, possibly where you have mounted it to the case.
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Old 03-19-2007, 12:34 PM   #4
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Default Re: Pc Turns Off After 5 seconds

Raffaz is right , sounds like a short to me.
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Old 03-19-2007, 06:26 PM   #5
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Default Re: Pc Turns Off After 5 seconds

yes, a short would be the first thing i'd check. Take all the components out of the case then fire her up and see if it fully boots. if it does, then it was a short. If not, try a different PSU and RAM.
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Old 03-19-2007, 06:59 PM   #6
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Default Re: Pc Turns Off After 5 seconds

Quote:
Originally Posted by celegorm
yes, a short would be the first thing i'd check. Take all the components out of the case then fire her up and see if it fully boots. if it does, then it was a short. If not, try a different PSU and RAM.
actually, we will never know, he returned it already...
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Old 03-19-2007, 07:52 PM   #7
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Default Re: Pc Turns Off After 5 seconds

thanks for the replies guys its just for future reference ncase it happens again
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Old 03-19-2007, 09:02 PM   #8
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Default Re: Pc Turns Off After 5 seconds

Quote:
Originally Posted by wol-va-rine
actually, we will never know, he returned it already...
oops, i missed that part. thanks for pointing it out tho.
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Old 03-19-2007, 11:57 PM   #9
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Default Re: Pc Turns Off After 5 seconds

A short would not take 7 seconds to shut down the psu. That would occur within a second of firing it up. Or not come on at all. Sounds more like a componet is bad or a device was not compatable.
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Old 03-20-2007, 06:07 AM   #10
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Default Re: Pc Turns Off After 5 seconds

hi b 4 i sent it back i unbuilt it and changed the psu to my old 350W and rebuilt it and it worked fine but i still sent it back as i started to throw things when i discovered they gave me a dodgy case but i will b re ordering.. so is it possible there was some dodgy connecting in the psu ?? it was 450W is that too powerful ???
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