sometimes its fine,but now and again on switch on the green light is on the front of the pc comes on ,but doesnt boot and nothing works ie fans,dvd drive,everything,does the pc need a new power system?
Sounds like a Power Supply Unit to me. Usually if a PC has intermittent power on problems a new PSU usually fixes it and would be the first thing I would change if it was my PC
i have had the same prob for about 2 or 3 weeks. my psu is only about 9months old and although new ones can mess up i'm not so sure.
it does sound logical what the other 2 abers say but i wouldn't rule out the posability of a corrupt operating system.
think i might try a xp repair or reformat soon or put back my old 350 watt psu and see what gives.
post back if you have any luck and i will do same.