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Is My Psu Dead?

post #1 of 18
Thread Starter 
so i bought a new psu. Coolermaster GX 650w. I wanted to check if it wasnt dead, since my first build came with a doa psu。 I plugged the Psu in and plugged in a spare fan。 The fan doesnt turn on。 I got the fan plugged it in my ancient acer computer's psu, and the fan worked。 Is my Psu dead? Or is it because i dont have my psu connected to the mobo?
    
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post #2 of 18
You have to give the PSU a "power on" signal before it will send power. You can do this by shorting (with a paper clip or something) the green wire (16) on the 24 Pin motherboard connector with any black wire (15, 17, 18,...)

post #3 of 18
Thread Starter 
is that the only way? or can i assemble my pc first then plug it in? Are you sure its not dead? i plugged a fan into it , and it didnt start up。
    
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post #4 of 18
If you're really concerned, just do that. It doesn't hurt the PSU if you do it right. Just takes 10 seconds to unfold a paper clip and stick it in the rights pins. It will not send any-power to anything unless the green pin is grounded.

Make sure the power switch on the back of the PSU is on as-well.
Edited by Flynny - 4/4/11 at 2:49am
post #5 of 18
The fan wont start before the PSU get's a signal to power on.

So you would either have to do it the hard way and connect it to your MB etc, or just do it the easy way, a.k.a paperclip.
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post #6 of 18
Thread Starter 
Quote:
Originally Posted by Poseidon View Post
The fan wont start before the PSU get's a signal to power on.

So you would either have to do it the hard way and connect it to your MB etc, or just do it the easy way, a.k.a paperclip.
okay so if i do thepaper clip method, do i need to shove the parerclip all the way in? cause the holes are really small and has another silver hole ,or do i just put it in slighty?
    
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post #7 of 18
Quote:
Originally Posted by tweaker123 View Post
okay so if i do thepaper clip method, do i need to shove the parerclip all the way in? cause the holes are really small and has another silver hole ,or do i just put it in slighty?
Unless you have MASSIVE paperclips, it should fit in all the way.
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post #8 of 18
Thread Starter 
okay so shove paperclip all the way in to greenwire and black, if the fan on the psu doesnt spin,its dead?
    
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post #9 of 18
Quote:
Originally Posted by tweaker123 View Post
okay so shove paperclip all the way in to greenwire and black, if the fan on the psu doesnt spin,its dead?
I would think so, yes.
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post #10 of 18
Quote:
Originally Posted by tweaker123 View Post
okay so shove paperclip all the way in to greenwire and black, if the fan on the psu doesnt spin,its dead?
Yes, but there's a better chance that it's fine rather than DOA.
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