Dell laptop wont turn on

Please help! I am new here and I am having a problem powering up my dell latitude 650 laptop. This problem was intermittent in the past, but now I am completely unable to turn on my computer.

When I press the power button, the power lights go on for about five seconds, then shut off. There is no harddrive/processor noise and it seems something is not turning on to operate/boot the system.

If anyone has experienced the same problem or knows what the problem may be, please let me know.

Power supply and motherboard would be my two top guesses. You will want to take it in to a repair shop for diagnosis and fixes, laptop repair is not an easy DIY project.

i have 2 dell latitude cpxj 650 gt's and one inspirion. all three have the same problem. at first i suspected the power controll module. aftter having replaced the PCM heatsink and fans on all three the problem was still there. since then i have replaced all the memory in all the laptops so that they are all the recomended type and matching when more than one stick is used. while the memory has lessened the problem, it does still happen. when the system stops booting i have found that removing the power supply and battery for several minutes allows the capacitors to drain and i am able to boot.

i have eliminated the idea that at leaste the PCM and batteries are not at fault. and since the problem persists when memory is changed, this is also probably not the problem. since this problem happens on several types of dell laptop i dont believe its simply a problem with a specific system. my best guess is a problem with the CPU, motherboard, or something heat related (since it seems to happen most when run, then rebooted)

let me know if anyone has any suggestions

zlost1

well i wont buy n e dell laptop then thatnks mates u helped me big time.. Does it make n e beep noises when it starts?. My guess is that u mite hav moved something around somewhere in the lap top. mite have over heated the processor.

not enough info to tell... try opeing the lap top and resetting the cmos < take batt out for about 2-10) mins
that mite help