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Computer powers on ONLY for a second, then shuts off. Strange...


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#1 sirzune

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Posted 05 January 2015 - 09:38 AM

I got a refurbished Dell Optiplex 755 in great condition, put W7 Home Premium on it and did all of the updates.  Yesterday, it powered on by itself for only a second or two and immediately powered off.  Any suggestions as to why this would happen?  Thanks.



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#2 buddy215

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Posted 05 January 2015 - 10:33 AM

To clarify...you push the power button and a second later it powers off. Is that the situation?

 

If that's the case, it sounds like the psu needs replacing. From reading a few reviews, that is one problem

frequently reported on that Dell.


“Every atom in your body came from a star that exploded and the atoms in your left hand probably came from a different star than your right hand. It really is the most poetic thing I know about physics...you are all stardust.”Lawrence M. Krauss
A 1792 U.S. penny, designed in part by Thomas Jefferson and George Washington, reads “Liberty Parent of Science & Industry.”

#3 sirzune

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Posted 05 January 2015 - 11:51 AM

To clarify...you push the power button and a second later it powers off. Is that the situation?

 

If that's the case, it sounds like the psu needs replacing. From reading a few reviews, that is one problem

frequently reported on that Dell.

No.  After I was done with computer for the day, I shut it down.  Several hours later it powered up ONLY for a second or two and then shut down.  Exactly like some computers do when you attach the power cord to the computer from the wall outlet, it does some quick power-up, then cuts off.  It did that.  And we didn't have a power loss.



#4 buddy215

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Posted 05 January 2015 - 12:32 PM

Could of been a power surge. Amazon.com: Surge Protectors: Electronics


“Every atom in your body came from a star that exploded and the atoms in your left hand probably came from a different star than your right hand. It really is the most poetic thing I know about physics...you are all stardust.”Lawrence M. Krauss
A 1792 U.S. penny, designed in part by Thomas Jefferson and George Washington, reads “Liberty Parent of Science & Industry.”

#5 sirzune

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Posted 05 January 2015 - 12:52 PM

Could of been a power surge. Amazon.com: Surge Protectors: Electronics

So far, it has not happened again.


Edited by sirzune, 05 January 2015 - 02:01 PM.


#6 buddy215

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Posted 05 January 2015 - 01:52 PM

Maybe you meant to state...so far, it has not happened again.

Power surges happen for different reasons and can happen frequently or rarely.

 

An informative article: PowerHouse : Power surges - cause & effect


Edited by buddy215, 05 January 2015 - 01:54 PM.

“Every atom in your body came from a star that exploded and the atoms in your left hand probably came from a different star than your right hand. It really is the most poetic thing I know about physics...you are all stardust.”Lawrence M. Krauss
A 1792 U.S. penny, designed in part by Thomas Jefferson and George Washington, reads “Liberty Parent of Science & Industry.”

#7 sirzune

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Posted 05 January 2015 - 02:02 PM

Maybe you meant to state...so far, it has not happened again.

Power surges happen for different reasons and can happen frequently or rarely.

 

An informative article: PowerHouse : Power surges - cause & effect

I've three computers running in the house, plus a Chromebook, and it has not happened to them.






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