Hello...

Last night, i was playing game..then suddenly the computer was turned off..i tried to switch on,but failed..the motherboard has lighted up...but it cannot be turned on..i put off all the hardware such as ram,processor harddisk,cd rom and tried to turn on, but it failed..i tried on the computer without processor,and seem the powersupply's fan not rotate even on..but the motherboard has lighted up signaled that the motherboard has received current...then,i borrowed power supply from my friend..but it also failed...what is the problem??is it the processor or the motherboard??...

Spec

Processor : Pentium 4 3.0ghz Hypher - Threading
Motherboard : Intel D101GGc
Powersupply : ATX 450W
Harddisks : SATA 200GB and ATA 80GB
Otherhardwares : CD - ROM,floppy disk,harddisk cooling fan
Graphic Card : ATI Radeon X550
RAM : 256 MB x2