Have you made any recent BIOS changes? Are all the power leads connected properly? Is your motherboard screwed in properly?

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I cant swap the PSU as its one with a transformer etc...as part of the cable and the only other leads i have are standard leads or my laptop leads which are no good unfortunately. And i cant swap the motherboard as the only other motherboard i have is my laptop.

Its a good idea to take parts out to see whats wrong but i dont have the patience and id probably screw it up, i can easily take then out and put them in but im sure id manage to mess it up somehow. I think its most likely the PSU or the motherboard, hopefully not the motherboard as thats basically a whole computer.

And i havent made any changes at all the system before it started to have its tantrums. Stupid machines!

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Like I said. Get a new power supply. You can easily have it done by a professional...It'll cost a lot more then doing it yourself but atleast you know it'll get done correctly.

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The way I solve this problem is :

- Look if the power-on button is correctly connected to the motherboard.
- Look if your video card is right inserted in your computer.
I maybe a bit loose and you computer doens't give an image.

- Does your computer make any (special) sounds during startup.
(the beeps during startup maybe indicating some memory faults, bios faults, ... )

- If you PC still doesn't startup :

- Disconnect the Floppy drive, Hard drive, CD Rom drive from the Power Supply.
If your PC starts up now , some of th above must be faulty.
Shutdown the PC and connect them one by one again till the problem rises again.

If all this doesn't work you need to swap hardware with spare parts , like Power supply, mainbord, ...

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