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maybe a psu problem

post #1 of 5
Thread Starter 
hello,last couple days when i shut my pc off i have a problem rebooting..sometimes i start it from a cold boot and fans turn,hd led,and everything seems ok,but no beep and goes to black screen before bios..then finally i will get it to boot..if it does boot into windows everything is ok,i can restart it how ever many times i want and its its rock stable..only when i use the power button to turn it on.

i reseated all my cards and reconnected everything..i thought maybe a bad power switch so i switched it with the reset switch and the same thing..then today when i tried to boot up it just flickered real quick and shut off when i pressed the power button.it continuosly flickers on and off about 20 times..then finally boots up..been running all night no problems..not sure what the problem is.
post #2 of 5
1. try swapping the switches for power and for reset see if it helps.
2. If not, it could be your PSU not flowing enough power to the components. try a spare psu lying around.
Minotaur
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Core I5 2500K MSI P67A-GD53 2 X EVGA GTX 460 SLI G.Skill RIPJAWS 2*4Gb 1.3Ghz 
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WD: 2*500GB Raid0 + 2*2TB 2*DVD RW Optiarc+Samsung Windows 7 64-bit 24" ACER Widescreen HD 
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Minotaur
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core I5 2500K MSI P67A-GD53 2 X EVGA GTX 460 SLI G.Skill RIPJAWS 2*4Gb 1.3Ghz 
Hard DriveOptical DriveOSMonitor
WD: 2*500GB Raid0 + 2*2TB 2*DVD RW Optiarc+Samsung Windows 7 64-bit 24" ACER Widescreen HD 
KeyboardPowerCaseMouse
Microsoft Ergonomic 4000 Corsair HX620 Coolermaster HAF932 Advanced Ocz equalizer 
Mouse Pad
RatPadz GS 
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post #3 of 5
If you can get into the BIOS check the reported voltages.
To test it manually, you need a voltmeter, remove all power to any components and jump the green wire to a black on the 24 pin connector and test the voltages according to the pin out on the 24 pin moldex according to the ATX PS in the link... the pin outs are in the page 30ish area.
http://www.formfactors.org/FFDetail.asp?FFID=1&CatID=1

BTW, you could have a wacked PS on/off switch too! I had one that drove me crazy for a few days
    
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X4 965 ASUS M4A79 Deluxe 9800GTx2 2x2G OCZ Reapers 
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500G WD Black LiteOn CD/DVD R/W Win7 64 22'' ws Acer AL2223W 
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MS KU462 Natural SS DA750 MS 5 button 
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CPUMotherboardGraphicsRAM
X4 965 ASUS M4A79 Deluxe 9800GTx2 2x2G OCZ Reapers 
Hard DriveOptical DriveOSMonitor
500G WD Black LiteOn CD/DVD R/W Win7 64 22'' ws Acer AL2223W 
KeyboardPowerMouse
MS KU462 Natural SS DA750 MS 5 button 
  hide details  
Reply
post #4 of 5
Thread Starter 
i think my cdrom was bad..that explains why it didnt boot..to bad my windows cd was in it and it wouldnt eject..i replaced it with an old goldstar cd rom i had..although it boots everytime,when i press the power button it stills quikly spins the fans and shuts back off..it will do this everytime about 4 or 5 time before it finally starts up,but restating from form windows has no problems,can stay on 12 hours at a time..i dont know what it could be..what would make it not get enough juice the first few times i press the power button.....earlier i checked the voltages in bios and they were ok and also reset cmos.

there is a lite on the back of the psu..when it does what i describe the lite goes off and back on..
post #5 of 5
Thread Starter 
my psu was bad..finally after 3 weeks i just got a replacement..installed everything in the new antec 900 and seems all good..
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