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Why does comp shut down?

Last response: in Components
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July 4, 2012 12:20:00 PM

I have an inverter connected to comp. I recently replaces PSU---Odyssey 450W, Graphic card--Saphhire hd 6670. Whenever there is power cut, comp shuts down, the power button doesnt work if i press. I have to remove and reconnect the power plug everytime to switch on so that it works on invertor. Is it a PSU problem
SPECS---
C2d 2.66 ghz
2 gb ram
hd 6670 1 gig gddr5
320 GB HDD

More about : comp shut

a c 714 ) Power supply
a c 1406 U Graphics card
July 4, 2012 1:15:59 PM

Looks like it, that is that you will have to reset the PSU that way.
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a b ) Power supply
a b U Graphics card
July 4, 2012 4:45:54 PM

By "inverter" do you mean a no-break? Or just a DC/AC converter connected to a DC BUS?

Anyway, it looks like your AC output may be out of specs. If you have a multimeter handy, please test the AC voltage on the PSU power input.

Also, does your power circuit have a proper ground circuit?
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July 6, 2012 5:04:43 PM

inverter is a back up sort of thing.
the comp doesnt start, i have to remove the power plug at the back and plug it in again for it to boot. Is this a PSU problem?
It has 17A on 12v rail i think
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