Question about HP Pavilion a340n (DQ099AABA) PC Desktop
I unplugged ny pc the other day. When I plugged it back in my pc would not turn on. The green light in the back was flickering. I dont think its getting enoug power to turn it on.
I don't know how old your system is but what you describe sounds like a tired power supply. They will often fail after being turned off; they just don't start the necessary oscillations to continue.
These are not hard to replace but you will need to remove the current one to learn the ratings of the supply.
It only requires a Phillips screw driver to remove four screws holding the case in and then skin some knuckles pulling plugs.
If you are paranoid (not that there's anything wrong with that ;-) ), mark the connectors before pulling them so you have a 'guide' for plugging in the new one.
Power output will be on a label and the total wattage rating is the info you need; will read something like 350W or 450W.
The individual voltages and currents often listed are scaled up or down depending on the total power output so the total is all that is needed.
Very good supplies can be had for under $100 US and a typical commodity supply (kinda like the one that failed) can be had for as little as $10 +S&H on eBay.
Before the decay of the dollar, I bought these (350W) for $5.
They are repairable but . . .why?
These are the cheapest built part of your system and often the least reliable.
If you want one that will outlast your interest in the system, check out PC Power and Cooling.
Posted on Aug 28, 2008
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