i thought it was the PSU ( change it) and then for a couple of weeks, gave me stable rig again..but today..the problem came back again...this time i could not power it up totally, (done basic troubleshooting..change cable, change power source/psu, swap memory,) to no avail two things left not swapped (processor and mobo)
as don't usually go beyond that point..why? it's not practical..hehe i mean if those two are the remaining part not been tested you have 50/50 chance either mobo or proc...might as well go to a computer center since i will be force to replace it anyway why not give those technician a job..haha (most center offer free installation of mobo or proc)..
i will place my money on motherboard on this one..keep you posted!
UPDATE.. (March 23, 2010)
i as suspected the mobo is dead...just spend 3k for a replacement, deym!