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Corsair 450VX restart issues


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I installed a Corsair 450VX last night and ran into a slight problem. I can start up my machine fine the first time but any time I power it off, it will not start again. Nothing happens when I press the power button - no fans spin, no beeps, nothing.


The only way I can get it to start again, is by unplugging the 20 pin connector from the mainboard and then reconnect it. Then it will power up like normal on the first try.


If I power down again, the same thing happens. I have to unplug then replug the connector and it works.


Also, unplugging the power cable out the back of the psu and replugging that in does not fix the problem, nor does any other power cable solve this. It has to be the 20 pin connector.


And this does not happen if I attach my old psu. It starts fine every time.


Any ideas as to what is going on?

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