Solved My computer will not turn on

November 7, 2013 at 15:52:00
Specs: Windows Vista
would it be the reset button ??? where do i find reset button on a Hewlett Packard Compaq Presario tower computer around 10--12 years old........Thank-You. Jimmy.

See More: My computer will not turn on

Report •

November 8, 2013 at 00:37:45
There might be a reset button on the front panel or if it's not there, there are probably 2 pins on the motherboard for that purpose that would connect to the front panel. HOWEVER that reset function will not fix anything. It was usually used if the computer locked up and you needed to restart it.

So your computer just doesn't work. When you try to power it up, what exactly happens? Does anything show on the screen? Does it make any noises? Did anything happen to it between the last time it worked OK and the first time it didn't?

Report •

November 8, 2013 at 08:34:55
Hi Dave: No there is no noise at all , just a flashing green light on the back side of computer i also noted the fan above the green flashing light is not working. No power to the screen from computer, but if i click the button for the screen the screen will turn on but only shows a blue screen. So i do not know what i did, the computer was working fine before shutdown 2 nights ago .

message edited by JohnLukacs

Report •

November 8, 2013 at 19:39:56
✔ Best Answer
It's probably not the monitor. The blue screen is probably just what it shows when it's connected but not getting a signal but I guess it wouldn't hurt to try another one if you have one.

Another thing you can try is to disconnect the power cord and open the case and temporarily remove all the cards (except video if you're using a video card) and disconnect all the drives. Then reconnect the power cord and see if it powers up to a posting or logo screen. If so then one of the disconnected devices must be at fault. While you've got the case open you can check and make sure all the connections are tight and there are no frayed wires.

If it still doesn't come up then you're left with the power supply or motherboard or both--both because sometimes when a power supply fails it wrecks the motherboard as well. Many of those HP/Compaq systems used low quality power supplies so it's a good guess that that's the problem. If you have a known-good compatible power supply you could try swapping it in and seeing it it works then.

There's also something often called a 'power supply paperclip test' to test a power supply that's been removed from the system. I believe it's a no-load test so that even if it passes a power supply may still not work in the system. Here's a pdf download that describes that if you think you might want to try it:

Report •

Related Solutions

January 30, 2014 at 14:44:59
Have you fixed the problem, if so what was it?

Always pop back and let us know the outcome - thanks

Report •

Ask Question