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My power supply is powering down randomly, help please

post #1 of 17
Thread Starter 
Just started like a few hours ago, my power supply will randomly shut off and of course my computer will too. I then have to do a power cycle and then it will start up again, but in about 15-20 minutes it will do it again. Anyone know what is wrong? or what i can do?
post #2 of 17
you sure the computer is not shutting down the power? Overheating?
My System
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E8400@4.0 DFI Blood Iron EVGA 9600GT 8 Gigs Gskill pc6400 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8400@4.0 DFI Blood Iron EVGA 9600GT 8 Gigs Gskill pc6400 
Hard DriveOSMonitorKeyboard
Maxtor Diamond Max Windows7 Pro Acer AL2016W yes 
PowerCaseMouseMouse Pad
OCZ 500w SXS Ultra Aluminus yes yes 
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post #3 of 17
sucking too much juice? maybe you need a stronger supply

I switced from a 420 watt psu to the enermax lib 500 and since then have had no restarts.
Note i was having restarts before
Vroom
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3.00Ghz Prescott @ 4.05 Asus P4P800 E Deluxe Ati Radeon 9600xt Geil 1 Gb @ 2.5-4-4-8 
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Vroom
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post #4 of 17
Thread Starter 
Quote:
Originally Posted by fstfrddy
you sure the computer is not shutting down the power? Overheating?
no overheating at all, my cpu is at like 30 C and my case is around 28 C.

and its not sucking too much juice, because i havent changed anything in the past 4 months, and it was running fine until today.
post #5 of 17
What are your rails reading?
Project Omega
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Project Omega
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post #6 of 17
if ure not drawing too much power
then its your fan stoping or running to slow and the "fan running interlock" is causing it to shut off
or its reading it wrong
clean out your PSU
Finaly Dual Core
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Pentium D 805 4Gz ABIT AW9D-MAX Saphire x1950 Pro 512 4x512 Buffalo Firestix 
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Finaly Dual Core
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post #7 of 17
Thread Starter 
Quote:
Originally Posted by thehybridpyro
if ure not drawing too much power
then its your fan stoping or running to slow and the "fan running interlock" is causing it to shut off
or its reading it wrong
clean out your PSU
i think it could be this, i decided to plug my front fan controller for the nuuo back in, and i cranked it to full speed and it seems to be working, or at least it has for 15 minutes, the last time before this it turned off in 5
post #8 of 17
Oh..sunbeam nuuo power supplyes have problems with the fan hubs being cracked easily. Sometimes if a psu fan is not operating even though it is plugged in and auto-protect feature will shut it off.
The Overmind
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The Overmind
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post #9 of 17
Thread Starter 
well, the computer ended up turning off after 55 minutes. Then again after like 2, and then the last time it turned off in the middle of the windows loading screen. So what can i do?
post #10 of 17
Quote:
Originally Posted by Murcielago77
well, the computer ended up turning off after 55 minutes. Then again after like 2, and then the last time it turned off in the middle of the windows loading screen. So what can i do?
It sounds like you may have a defective fan on the PSU. If possible RMA the PSU. If thats not an option, You can open up the PSU(Voids Warrenty) and change the fan.
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My System
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CPUMotherboardGraphicsRAM
E6700 3.6 1.35v Asus P5B Deluxe Wifi 8800gtx 2Gb Crucial Ballstix 667 
Hard DriveOSMonitorKeyboard
2x WD raptors XP Pro -SP2 Samsung 204b Saitek Eclipse II 
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OCZ GX 600w Lian-Li 1000vb Logitech Mx-518 +MX revolution 
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