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@PeterOConnor wrote:

I got a service call last week to replace a noisy power supply fan, and the guy changed the power supply quickly and efficiently fixing the fan noise.  However, now I have a problem that the power supply just cuts off randomly and won't let me reboot the computer.  What's up?  How can I get it fixed quickly?

Thanks,

Pete

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Pete

You might check voltages at the power supply motherboard connector with a DC volt meter (tower pluged  in and on) to see if the power supply has cut off.

Also jumper the on/off pins at the rount pannel on/off mb connector,,,,,,,,,,or ohm meter test the frount pannel on/off switch.

If there are no ps voltages present,,,,,,,, and the on/off switch closes,,,,,possibly the new ps is at fault.

Maybe you could try a different ps,,,,,,,or even put the noisy fan ps back in just to see,,,,,,, if  the new ps may be defective.

rusty

Dell Dimension 4100 (incase mb upgrade) Intel(R) 2.4(oc 2.8) specs