Question about HP Pavilion a310n PC Desktop

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How can I tell if my power supply is bad?

Had a brief power outage while at work. Now PC won't turn on. Green light on back glows steady. Fan does not turn on.

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  • HP Master
  • 3,799 Answers

Switch the machine off and leave it unplugged from the mains for 5 minutes, while it is unplugged press the power on button a couple of times. (This will make sure all of the logic in the tower is reset, ) Then turn it on again. The only way to test a power supply is with a multimeter or a PSU tester, the second one is easier and cheaper. (about 5 to 10 GBP)

Posted on Apr 20, 2013

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Posted on Jan 02, 2017

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  • 624 Answers

SOURCE: System will not power up

Here is a Compaq document will walk you thorough a fairly lengthy procedure that should solve your problem. Here is the link: http://h10025.www1.hp.com/ewfrf/wc/document?docname=bph06788&lc=en&cc=us&dlc=en&product=431080&query=presario%20sr1220&dest_page=product#N561 Let us know how this turns out or if you need any additional assistance.

Posted on Jan 02, 2007

  • 2 Answers

SOURCE: Computer will not turn on. Power supply shows flashing green.

depending on the make of computer, a power supply cost's around $20.

Posted on Mar 15, 2009

  • 367 Answers

SOURCE: Storm knocked power off late

Hello,
The first thing to try is to cycle the power. To do this, unplug the power cord from the back of the PC and press and hold down the power button on the PC for 5 seconds. This will completely drain any "stuck" power in the components. Now plug the power back into the PC and try booting. If it still does not come back on after this, then you may be dealing with a blown power supply. You can buy replacement power supplies from your local PC shop for about $50 for a 400watt.
To protect your devices in the future, make sure you have a good surge protector and / or a UPS (uninterrupted power supply).
Regards, Chris

Posted on May 25, 2011

mikedenney
  • 150 Answers

SOURCE: PC won't turn on, small

Hate to say it, but it's likely your power supply. For years now, HP/Compaq, and Gateway/eMachines/Acer have all been putting 'Bestec'-brand power supplies in their brand-new desktops. I tired of replacing them because a) Brand-new computer owners strayed away from me if I warned them about it prior to 'the inevitable', and b) Often, power surges on these Bestec power supplies would also 'take out' the motherboard, and sometimes even hard drive (and data!). After years of seeing this, I reported this incredible catastrophic known-fail rate to a law firm in NY who is supposedly going after the manufacturers for this problem (or ignoring the problem). Power supplies can be bought for under $100, and any technician who is honest and affordable (and can also afford gas!) should be able to install one for under $50 (I do it for $30, for comparison). Those guys ARE out there--so search one out, and hopefully you'll be up and running in a few nanocycles (sorry, redundant error on my behalf--I'm a nerd, okay?).

Posted on Jul 05, 2011

Joe Onley
  • 363 Answers

SOURCE: Have a PC 099A-ABA that

Hi Joe,
a power supply is pretty basic, only 4 screws on the back hold it in, and while you are getting a new one, get one that is a little stronger than the one you have if you can afford it, just make sure you get one that has the proper cables. bring the old one with you so you can have the people at the PC shop give you the right one. Some of the connections are going to be a little tough to get to and out, but be patient and don't pull too hard, some have a retainer you must press to pull them off the board. It's pretty strait-forward as long as you don't lose your cool. You can look on Newegg.com to find a price that you can expect to pay at a local shop, or you can order from there and it would be there in a day or so.
Hope this is helpful
Joe :)

Posted on Aug 30, 2011

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