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Windows 7: Sleep issue after changing my PSU

02 Feb 2013   #1

Windows 7 Professional 64bit
Sleep issue after changing my PSU

Last night I changed my PSU from a corsair TX650 to a Corsair HX750.

The computer boots and runs fine and I haven't noticed any problems while I'm using the computer.

The problem starts when I turn the computer off. I usually put my computer into sleep mode and since I changed the PSU, while it is going in to sleep mode it clicks and shuts off. When I try to turn it back on, the case fans light up and then everything shuts off. I ultimately have to flip the switch on the PSU and then it will turn back on.

Also when I try to do a regular shutdown, while it is shutting down, the PSU clicks and the computer turns off. It seems to be shutting down faster than before so I'm worried that the PSU is shutting off before the rest of the system is ready to shut down.

Also the computer is on right now and the PSU fan isn't spinning.

Thanks in advanced.

My System SpecsSystem Spec
02 Feb 2013   #2


If you have the Gold certified HX750, then you have the one with the smart fan control where it doesn't turn on unless it's needed.

That's all I can contribute.
My System SpecsSystem Spec
02 Feb 2013   #3

win 7 X64 Ultimate SP1
Bios Settings?

In an (elevated) command prompt window type "powercfg -a" (no quotes) This reports the sleep states available to your setup. Then check your bios settings to see if they match up.
My System SpecsSystem Spec


 Sleep issue after changing my PSU

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