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Power Supply Stays On

Posted on 2005-03-24
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Last Modified: 2012-08-14
When I shut down my PC the PC switches off but the power supply fan is still running, any ideas?

Thanks
Grant
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Question by:Grant Rogers
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6 Comments
 

Author Comment

by:Grant Rogers
ID: 13627378
Hmm should have spent some more time looking!  I have recently got a new Enermax Noise taker power supply it is a feature to cool down the power supply after the machine is shut down to preserve the power supply.

Maybe this info will help others
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Expert Comment

by:activematx
ID: 13627676
Does it stay on forever?  Or does it eventually shut down.

If it eventually shuts down, you answered your own question.  It stays on to cool down the PS then it shuts down.

If it doesn't ever shut down, there may be a problem in the Power Supply. THe temp gauge may be faulty causing it to stay on all the time.
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LVL 23

Expert Comment

by:sciwriter
ID: 13628318
Is this just a windows XP shutdown you are doing?  If so, and the motherboard is NOT ACPI compliant, you should get a screen telling you it is safe to turn off the system -- same if you have an ACPI system but have the ACPI power management off.

Go into the BIOS and look at power management.  If it is off, turn BASIC support on (nothing very aggressive!).  Try that.  If it still doesn't work, put your system on a UPS of surge strip and turn it off that way.  It could also be a defective XP installation, and if it is not XP, this problem can be quite common on 98 etc.
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Author Comment

by:Grant Rogers
ID: 13629616
That wont be necessary it is by design of the power supply rather than anything to do with the motherboard or OS. I did answer my own question.  I need to get this question closed.

Thanks for the input though
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