Computer Won T Turn On But Motherboard Light Is On

By steakboy080 oct 18 2011 1120am pdt i woke up to a problem with my computer this morning and im trying to get to the bottom of it. Power button lights but computer wont start.

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computer won t turn on but motherboard light is on

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Wont turn on but light on motherboard is on.

Computer won t turn on but motherboard light is on. I opened up a working computer and hooked up its power supply to the motherboard 24pin and 4pin. If this works youll know the issue is your case. No beep codes just the leds light up.

I dont see any bent pins notches align with the small protruding points on either side and cpu is seating flush. Press and hold the power button for 20 seconds. Check to see if your motherboard has an onboard power button.

If the issue still persists try swapping the system power cable with monitor power cable if they are identical else you may try powering on the system using a good known power supply. Ive built quite a few computers. The power supply for this computer is a 4 year old fps 700 watt and its powering 6 drives a quad 2 core q6660 vb 4gigs a video card i put in 6 months ago.

I dont have thermal paste to reapply but i dont see how that would prevent booting. If your pc wont turn on but motherboard light is on a potential culprit is the power button on the case itself or the wires connecting that button to the motherboard. The cpu is seated properly.

Try to restart the computer and check. Reconnect the power supply. Not all of them do.

Using this power button will turn on the system just as a properly wired power button would. Consult your motherboard manual if youre unsure or having trouble locating it. Check out my website.

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