Replaced Power Supply Now Computer wont shut down.

Replaced Power Supply Now Computer wont shut down.
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Forums » Technical » Computer Hardware Help » Replaced Power Supply Now Computer wont shut down.

Dexter555 @ 3rd Nov 06:26PM:
Replaced Power Supply Now Computer wont shut down.

I replaced a power supply in my computer upgraded to a 450 watt psu from a 225 watt psu, now when I turn on the power in back of the power supply the computer powers up with out me pressing the power button. When I try to turn it off with the power button it wont turn off there is no video either. I have no idea what it can be from what I understand most power supplies are compatible with atx systems. I tried 2 different 450 watt power supplies. Any idea of what it can be or has anyone here had this problem. The help is much appreciated. Thanks.
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stormbow @ 3rd Nov 06:28PM:
Re: Replaced Power Supply Now Computer wont shut down.

What's the make of the computer? Is it a Dell or HP, or a homebuild?
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Dexter555 @ 3rd Nov 06:41PM:
Re: Replaced Power Supply Now Computer wont shut down.

Sorry for lack of info. Yes it is a home built AMD probably about 3 years old. I cant say for sure exactly what model motherboard because I cant see the model number anywhere on the mobo.
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psafux @ 3rd Nov 10:08PM:
Re: Replaced Power Supply Now Computer wont shut down.

said by Dexter555 :

I cant say for sure exactly what model motherboard because I cant see the model number anywhere on the mobo.

check between the PCI slots. AMD likes to put it there.
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