Ahh..ok.

Did this resolve the problem?

No, it still wont switch on.

Thanks

So nobody has any advice as to whether it is the motherboard or the chip?

Did you check on the motherboard to see whether the cables were plugged into the right sockets to give the PC Power? Eg, power, standby (if the mobo has that) etc and that you havent got them the wrong way round?

Hi

Yes all is plugged in correctly and this PC has been working fine for at least 4 years

Ern

Thres not much action on this forum is there? I know nobody owes me an answer or anything but it does make you wonder if its worthwhile running a forum where nobody can help.