PC power on but PC not working

  jcotton 18:25 01 Feb 06
Locked

Hiya all,

My computer suddendly turned it self off and now wont turn back on.

The strange thing is as soon as I put the power cable into the psu, the fan in the psu starts up even though the power button for the PC isnt even switched on

Unfortunately the motherboard does not have a power light so I cant tell if power is actually getting to it. I have tried another PSU but that does the same thing.

I have also unplugged all the extras for example all PCI cards etc etc but still no luck.

My suspicion is that something on the motherboard has gone. Before I go out a buy a new one has anyone got any ideas or tests that I can do?

Cheers

  woodchip 18:46 01 Feb 06

First check the Power Supply with another one if you have one, also make sure CPU Fan is running. Did you put Heat compound between the Heatsink and CPU if not you will burn the CPU out

  Fruit Bat /\0/\ 18:54 01 Feb 06

Any led lit for Hard drives DVds etc.?

Fans on mpotherboard must be working if power ok

Make sure graphic card and memory is pluged in an it should boot to error message about no opertaing system if HDD are unplugged.

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