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[Solved!]System powers up for half a second, then shuts off...

post #1 of 12
Thread Starter 
System is in signature. When I press the on switch at the front of my Mountain Mods case, the system will start up for a half second--fans light up, LEDs light up, pumps start, and then everything goes dead. The motherboard will go to its 'off' state in which only certain lights are on, yet not fully powered up.

Does anyone have any idea what the heck is going on here? Somedays, my system will work, somedays it does this. I mean, what the crush, man?
Edited by UrbanSmooth - 4/8/11 at 10:08pm
    
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post #2 of 12
Start disconnecting things one at a time until the problem goes away.

If at the end of it, you only have memory+mobo+cpu hooked up, take it out of the case and test. Heck, you should even be able to test with just the mobo.
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I Love Cheese
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post #3 of 12
Check the PSU is on the appropriate voltage setting?
post #4 of 12
Quote:
Originally Posted by joemaniaci View Post
Start disconnecting things one at a time until the problem goes away.

If at the end of it, you only have memory+mobo+cpu hooked up, take it out of the case and test. Heck, you should even be able to test with just the mobo.
I agree with this guy. Take everything out except the mobo and see if you can replicate it. If not put parts back in until you can.

Also, if you're oced make sure it's stable because my gigabyte board will do something similar to this if the oc is too high.
post #5 of 12
Quote:
Originally Posted by Letmekilluplz View Post
I agree with this guy. Take everything out except the mobo and see if you can replicate it. If not put parts back in until you can.

Also, if you're oced make sure it's stable because my gigabyte board will do something similar to this if the oc is too high.
I agree, I was having similar problems with my 920 that I was later able to attribute to my OC.

I also had a 775 ASUS mobo fail on me that was giving the same problem, everything would power on for a few seconds then turn off. Ended up testing everything and finally replacing the mobo which solved the problem.
    
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post #6 of 12
Also try each stick of ram
    
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post #7 of 12
Quote:
Originally Posted by Kick View Post
Also try each stick of ram
definitely. Try one stick, try different channels. If you have a spare GPU, try that one. test the PSU without mobo connection.
    
CPUMotherboardGraphicsRAM
i7 4770K ASRock Z87M Extreme4  XFX R9 390 Black Edition 16GB Corsair 
Hard DriveHard DriveCoolingOS
256GB Samsung 840 Pro Seagate 3TB Cryorig H7 Ubuntu 
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ASUS VG248QE 24" Logitech g710 Corsair AX 760i CM N200 
Mouse
Logitech G502 
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CPUMotherboardGraphicsRAM
i7 4770K ASRock Z87M Extreme4  XFX R9 390 Black Edition 16GB Corsair 
Hard DriveHard DriveCoolingOS
256GB Samsung 840 Pro Seagate 3TB Cryorig H7 Ubuntu 
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ASUS VG248QE 24" Logitech g710 Corsair AX 760i CM N200 
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Logitech G502 
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post #8 of 12
Have you tried clearing the CMOS, that might help.
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The Sand Man...
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post #9 of 12
Thread Starter 
Will be working on this more tonight, just got back from work, need my NewEgg "window-shopping" time.
    
CPUMotherboardGraphicsRAM
Intel i7 920 D0 stepping @ 4.+GHz ASUS Rampage III Extreme + EK-FB-R3E water block MSI GTX 480s in 3-Way SLI Mushkin Enhanced Ridgeback DDR3 1600 6GB (3 x 2GB) 
Hard DriveOptical DriveOSMonitor
Crucial RealSSD C300 256GB ASUS CD/DVD burner Windows 7 Home Premium 64-bit (Triple) ASUS VW266H 19x12 each @ 5760 x 1200 
KeyboardPowerCaseMouse
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CPUMotherboardGraphicsRAM
Intel i7 920 D0 stepping @ 4.+GHz ASUS Rampage III Extreme + EK-FB-R3E water block MSI GTX 480s in 3-Way SLI Mushkin Enhanced Ridgeback DDR3 1600 6GB (3 x 2GB) 
Hard DriveOptical DriveOSMonitor
Crucial RealSSD C300 256GB ASUS CD/DVD burner Windows 7 Home Premium 64-bit (Triple) ASUS VW266H 19x12 each @ 5760 x 1200 
KeyboardPowerCaseMouse
Logitech Comfort Wave 450 Black (Dual) Corsair HX1000s Mountain Mods Ascension (modded) Logitech MX518 
Mouse Pad
(Dual) XTracPads Ripper XXL 
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post #10 of 12
make sure you plugged in the CPU power plug, its 8 pins.
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X99 Main Rig
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