the mobo is an asus P5Ld2, equipped with a pentium 4 3.0 ghz processor HT support, also have a seagate 120 gb HD and a 500 Watt Aspire 24 pin PSU
HOWEVER....
The mobo lights up green and the power supply flickers then does absolutely nothing but the green Led on the mobo remains on, , please tell me its a jumper.. if anyone could help, please do because i have no idea where the problem lies... thanks for your help.