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Power supply - testing for faulty power supply

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    Posted: 12 Feb 2009 at 12:25pm

Equipment that we use here at CyberPower:





This is a brief explanation on the infamous paper clip test that our tech support personnel will ask you to perform if your system doesn’t respond when attempting to power on or if your system powers on for a few seconds before shutting off. Please proceed with caution.

1)  Please disconnect the power cord that is connected to your wall outlet or surge protector from the power supply and make sure the power switch on the power supply (usually found on the back of the power supply) is set to O or off (depressed).
 
2)  Get a paper clip and untangle it so you have two ends.

3)  Insert one end of the paper clip into the green wire of the 20/24 pin connector from the power supply and the other end into the black wire of the 20/24 pin connector (see picture).

4)  Once the paper clip has been set, plug in the power cord into the power supply and hit the power supply switch to the I or on position. The power supply fan should be spinning, and it should not power off until power switch is switched to the off position again.





Edited by @power - 12 Feb 2009 at 12:35pm
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Munch View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Munch Quote  Post ReplyReply Direct Link To This Post Posted: 12 Feb 2009 at 12:29pm
Nice post, that will help some who need to run this test...
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Post Options Post Options   Thanks (0) Thanks(0)   Quote metalman261 Quote  Post ReplyReply Direct Link To This Post Posted: 12 Feb 2009 at 12:32pm
Thank you, I will try this after I post.
Here's a question though:
If all the bells and whistles come on when you push the power button but there is no display on the monitor and the GPU fan doesnt come on nor do the USB devices plugged into the I/O light up. Can that still be a PSU problem, or something else all together? Thanks!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Salan Quote  Post ReplyReply Direct Link To This Post Posted: 12 Feb 2009 at 12:42pm
To all CP people.
 
That is a great post.  We need and dare I say want more of this sort of stuff.  A little CP activity posting about the industry; new cpus and gpus coming out, power supply recommendations, thoughts on mother boards, your experience with different component manufacturers would really give a boost.
 
The other guys, that I can't mention do that regularly and it is an effective sales tool.
 
Good startThumbs%20Up.
 
Alan
 
PS - Dam, all of my paper clips have the nice colored coatings.  I hope my psu does not give me problems or I will have make a special trip to Office Max to get new uncoated paper clips.
 
PPS - Double dam, I'm partly color blind.


Edited by Salan - 12 Feb 2009 at 12:51pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Eddie Quote  Post ReplyReply Direct Link To This Post Posted: 12 Feb 2009 at 12:42pm
If everything else powers on then it should not be a problem with the power supply. You might want to check on the connections, for example the 24pin, 8 or 4 pin cpu power, and vga power, are all tightly and securly connected. And make sure the video card is firmly connected into the PCIE slot.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Salan Quote  Post ReplyReply Direct Link To This Post Posted: 12 Feb 2009 at 12:43pm
Originally posted by metalman261 metalman261 wrote:

Thank you, I will try this after I post.
Here's a question though:
If all the bells and whistles come on when you push the power button but there is no display on the monitor and the GPU fan doesnt come on nor do the USB devices plugged into the I/O light up. Can that still be a PSU problem, or something else all together? Thanks!
 
Hi Metalman
 
Try the psu test, one step at a time.  If the psu passes, we can all scratch our heads and try to figure out what is going on.
 
Regards
Alan
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Post Options Post Options   Thanks (0) Thanks(0)   Quote joe11 Quote  Post ReplyReply Direct Link To This Post Posted: 12 Feb 2009 at 12:50pm
I agree with Salan, this is what we need more of and it will really help out some of the newbies. Now we need a tour of cp just like the other place  LOL
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Post Options Post Options   Thanks (0) Thanks(0)   Quote metalman261 Quote  Post ReplyReply Direct Link To This Post Posted: 12 Feb 2009 at 12:58pm
The PSU passed. So I plugged everything in slowly and made sure the connections were good. I powered on again and everything turns on except the GTX 260 GPU and the I/O USB ports.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ratdog Quote  Post ReplyReply Direct Link To This Post Posted: 12 Feb 2009 at 12:58pm
Thank you @power....Pictures really help........Approve
 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Munch Quote  Post ReplyReply Direct Link To This Post Posted: 12 Feb 2009 at 1:15pm
I agree once again with Alan, MORE MORE MORE!!!  Great start thoughClap
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