[WackoX]

Quote:

Originally Posted by COD Thanks , i just try'ed it removing all hard drives , PCI-E cards and any USBs still same result the CPU Fan seems to be running fine to can this be the new power supply i got?.

You've already replaced the PSU right? Then you've got a 99% chance that the problem is you motherboard.
Check if you have any warrenty left, if not, you'll need to buy a new one.

BTW, have you inserted the 4-pin connector? (or 8-pin on newer motherboards)
And all videocard power supply connectors?