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Old 02-09-2012, 06:10 PM
 
Location: Frisco, TX
7,575 posts, read 12,046,695 times
Reputation: 4538

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Ok, so this question has been answered somewhere but I can't find it....

My Compaq desktop won't turn on - the power button does nothing. There is a flashing green light on the back of the CPU that continues to flash after I unplug it. A coworker said it could be the thing that the power cord plugs into, but I was wondering if anyone has solved this problem before.

TIA - happy Valentines
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Old 02-09-2012, 06:37 PM
 
Location: Wasilla Alaska
119 posts, read 201,493 times
Reputation: 112
Quote:
Originally Posted by little elmer View Post
Ok, so this question has been answered somewhere but I can't find it....

My Compaq desktop won't turn on - the power button does nothing. There is a flashing green light on the back of the CPU that continues to flash after I unplug it. A coworker said it could be the thing that the power cord plugs into, but I was wondering if anyone has solved this problem before.

TIA - happy Valentines
Do you have any fan noise or anything like that? Have you cleaned out the case recently? (Use compressed air to blow out all the dust). Barring that you can follow the wires from your power button to the motherboard and make sure it's still plugged in (silly, I know, but things happen). Otherwise you could try replacing the Power Supply. (Make sure it's not full of dust first)
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Old 02-09-2012, 07:12 PM
 
Location: Frisco, TX
7,575 posts, read 12,046,695 times
Reputation: 4538
Quote:
Originally Posted by Viking Tech Solutions View Post
Do you have any fan noise or anything like that? Have you cleaned out the case recently? (Use compressed air to blow out all the dust). Barring that you can follow the wires from your power button to the motherboard and make sure it's still plugged in (silly, I know, but things happen). Otherwise you could try replacing the Power Supply. (Make sure it's not full of dust first)
No fan noise, but that's about all I know at this point. I'll get get to it this weekend and see what's what.
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Old 02-10-2012, 11:12 AM
 
Location: in your dreams
10,890 posts, read 13,793,093 times
Reputation: 15366
I had this exact same problem just recently! This worked for me, I hope it works for you too!

I fixed my computer with a hairdryer...

With everything plugged in, just pointing a hairdryer into the fan for a minute or so got me back up & running.
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Old 02-11-2012, 05:57 PM
 
10,755 posts, read 18,015,770 times
Reputation: 10244
Quote:
Originally Posted by little elmer View Post
Ok, so this question has been answered somewhere but I can't find it....

My Compaq desktop won't turn on - the power button does nothing. There is a flashing green light on the back of the CPU that continues to flash after I unplug it. A coworker said it could be the thing that the power cord plugs into, but I was wondering if anyone has solved this problem before.

TIA - happy Valentines
IIRC that green light on the power supply should be on steady, not flashing. It's likely your power supply has failed.
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Old 02-12-2012, 01:19 AM
 
Location: Not where you ever lived
11,544 posts, read 26,380,085 times
Reputation: 6286
No fan noise + flashing light + no power button unusally means failed powr supply. The good news you can get on at NewEgg for $25 bucks and replace it yourself. Unplug it and make sure you're grounded. I always keep my arim on the metal frame when I'm repairing. That's my personal policy. While you are inside blow it out with some canned air.
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Old 02-12-2012, 10:56 PM
 
Location: NYPD"s 30th Precinct
2,477 posts, read 4,543,948 times
Reputation: 2504
Does the computer make a series of beeps when you try to turn it on? If not, then it definitely sounds like a power supply issue.

They're fairly cheap and easy to install. There's probably 4 screws holding in your current power supply, so make a note of what connections are going where from the dead power supply, screw in the new one and replace the connections.
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