Having problems with your HP Pavilion a420n PC Desktop ?

I shut my HP 520 desktop down for three days and when i returned, it will not switch on at all..the power button has a constant blue 'glow light' but fans, etc and usual bright blue when pushed does not come on.

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Answers :

If the fans (especially the one in the rear of the case) are not turning on, it is likely the power supply has failed and will need to be replaced.\015\012This isn't uncommon and in most cases, this will announce itself by not turning on. There are components in the supply that age (capacitors) and will often affect the startup of the unit.\015\012Less common is to have it fail while in use.\015\012
\015\012If you choose to DIY, you can replace the supply easily with one bought on eBay (the lowest cost source) or from a local computer store (markups can be 300%).\015\012
\015\012If the failed supply is rated at less than 400 watts, upgrade the power at this opportunity to at least that level if not 450.\015\012The cost difference will be minor and the supply will run cooler if not running full-out all the time.\015\012
\015\012This isn't a difficult job but if unfamiliar with the guts of a PC, take a dozen pix of the guts before tearing out the old supply.\015\012In most cases, you will need a form factor (sizing) called ATX, but check your dimensions against an offered supply to be sure.\015\012
\015\012Prices for these supplies can be from <$10 to $100 depending on your needs.
Your power button is sticky. This means your button is not spring back when you push it. Therefore you are putting the computer in hibernation mode or standby mode.
Repair Help & Product Troubleshooting for HP Pavilion a420n PC Desktop

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