powere supply issue

N

nezzy_dawg

New Member
k so my friend is having a problem , when he turns the psu on with the switch in the back all the fans turn on, but he never pressed the power button, and when he does try to turn it one nothing happens
 
That doesn't necessarily point at the supply itself there. Something on the board could failed or there is a need to inspect all power connections to make sure nothing is unplugged. There is evidently power but how much is another matter. Trying another supply by connecting it to the board there would make or break the current supply if found bad.
 
did he mess around maybe he unhooked the buttom from the mobo, or does it turn on then immediately shut down, cause that could mean not enough power, or something is shortaging it
 
could it be the psu thats messed up though? or the motherboard, he has enough powere it's 450 watts, when he turns the psu on the back, the fans go on, but nothing happens, then when he presses the button on the front of the comp to turn it one, nothing happens still
 
he built a new system , the psu worked with his last computer. i'm thinking it might have to do with him not having the 12v connections??i dont know
 
i'm going over to his place in a little bit to help him out, bringing over some extra psu i have, have any ideas of some troubleshooting i can do
 
If your friend missed plugging in the four wire 12v feed that goes in near the cpu socket the system won't boot with most newer boards. That's one thing to take a look at there.
 
i figured it out, he has a 20 pin pwr supple and the mthbrd is 24 pin, and he was plugging the pwr supple in the middle. of course it has to be at the end not in the middle. don't know if that makes sense lol
 
On some boards only. What type board is that a Socket 754? All of the boards since then run with a full 24pin supply. The make and model board will tell what it needs by looking over the specifications on it.
 
it's socket 939 but it really doesn't matter anymore cuase it's fixed. it says it needs atx 2.0 or something. doesn't matter
 
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