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Question

Power Supply for hp pavillion slimline

Jan 22, 2015 10:50AM PST

I have a hp pavilion slimline s5500 series and when I plug the power cable in the green light is on. But soon as i hit the power button the fans spin and the light dies. Can anyone help me? Do I need another power supply or is the mother board connections bad.

Discussion is locked

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Clarification Request
Have you tried
Jan 23, 2015 12:40AM PST
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Answer
be sure you have
Jan 22, 2015 11:30AM PST

some thermal paste first, then carefully remove the heat sink, wipe the old paste off, look for any burnt marks on it or around the edge of the socket. If nothing seen, carefully raise the ziff arm on socket and remove the CPU and check under it for any burn marks. If all seems well, replace everything and don't forget the new thermal paste between the HSF and CPU, wipe off any excess that comes out, may need Q-tip for that.

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Power Supply for hp pavillion slimline
Jan 22, 2015 8:33PM PST

Thanks James is this the only way to tell if its not the power supply, for I am not that technically inclined but i think i can do this. I just dont wanna order a new power supply and waste my money and time.

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Actually, someone brought me a similar slimline to look at
Jan 23, 2015 1:03AM PST

The symptoms were similar to what you noted. What I finally did was disconnect the PS from the motherboard and force start the PS using the green wire to ground test. The PS tested good. What I found was that the green light on the PS was much brighter when disconnected from the motherboard. Once connected, it dimmed noticeably. A visual inspection of the motherboard found about 1/2 dozen bulging capacitors. There was nothing left to do but connect the HD to another PC, retrieve their data, close up the PC and give it back with the bad news. Do a good inspection of the electrolytic capacitors. They'll be small soup can shaped devices mounted vertically on the MB. They'll have cross hatch marks on top but should be perfectly flat. Any bulging is bad and they drag down the PS voltage to unusable levels.

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(NT) BTW, the green LED on this PC was in the PS and not the MB
Jan 23, 2015 1:06AM PST
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If you see burn mark
Jan 23, 2015 4:02AM PST