Power slot problem on motherboard.

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xhaydenx

Thread Starter
Joined
Aug 16, 2011
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65
Hi everyone.

I've had a problem lately with my PC suddenly losing power. It then tries to start up again for a second, but then loses power. A second later it tries to boot again, then turns off again. The case fans spin each time. Only the CPU fan doesn't go. The GPu lights up too. I've had success fixing it by either wiggling the ATX connector or unplugging it and plugging it back in, but that didn't work this time.

I think I've narrowed it down to the slot where the main PSU cord plugs into my motherboard.

I had pretty much everything else unplugged and it was failing to start up. Then I put my old PSU in and it worked right away. After that I put my normal PSU back in and it worked right away after that. I think there's something wrong with the slot because I noticed one of the pins don't look right compared to the rest. Here's a pic. Sorry if its hard to tell, but that indicated pin looks different:



I'm assuming that as the parts heat up that it loses connection or something. Is this one pin something I can clean somehow? I don't know why switching PSU's then switching back made it work again.
 

dustyjay

Jay
Joined
Jan 23, 2003
Messages
12,661
Please post your system specs, To include Make and model System if Big Box, or same info for the following if custom or home built, Mother Board (including Revision number), Processor (Exact Model Number), Ram, Video Card, Hdd(s), Optical Drive(s), Power Supply Manufacturer Model, Wattage and Amperage on the +12V Rails, OS, and any other peripherals installed on the motherboard.
 

xhaydenx

Thread Starter
Joined
Aug 16, 2011
Messages
65
Hi. Here are the specs, as best I could find them:

Corsair 16G (4x4GB) Vengeance CMZ16GX3M4A1600C9 DDR3
Intel Core i7 2600K Processor LGA1155 3.4GHz CPU
Asus P8Z68-V PRO Socket 1155 Intel Z68 Chipset
Crucial RealSSD C400 128G SATA3 M4 Series
Western Digital Blue 500G SATA3 HDD Caviar Blue
Antec 620W High Current Gamer Modular PSU
Fractal Design Define R3 Case Arctic White edition
Noctua NH-C12P SE14 CPU Cooler
MSI 980 gtx 4gb gaming
 
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