PC doesn't turn on after powering off

Hi

I powered down my computer and it does not turn back on. At first it would power on for maybe a second. I could hear and see the fans spin. There was also no beep the first few times. Confused, I tried again to turn it on again and the same thing happened. Now nothing turns on. The fans don't spin and no lights turn on. The only thing I've noticed was the green light on the motherboard stays on if the powerswitch to the PSU is on. I've tried unplugging everything and replugging one by one. I've tried a different PSU also. I also tried the paper clip test. I'm not sure how accurate that is but for the current PSU (750w) the fan spins for maybe 4 seconds then it stops. On the 450w the fans continue to spin (paper clip test for both) So I tried to switch out the PSU thinking it would help and no luck. Sorry if this is jumbled up and doesn't make sense to anyone.

Mellon Head said:

Have you checked the power switch connector to the motherboard? Maybe it has come loose.

I've never heard of the paper clip test before. Please enlighten me. :)

With the PSU not connected to a power cable and switched off You take a paperclip and get it in an U shape. One side goes into green and one into black. Now plug it in and switch it on and you have a running PSU. Can you explain the power switch connector on the mobo?

Hopefully this is what you were talking about. There was no black and red but this.

Mellon Head said:

Looks like the right connector. johnsmith45jock reminded me that there is an easy way to test the front power switch. Unplug the power switch wires from that connector on the motherboard and short the two pins together. If the power switch is bad, the computer should start up and stay running. The power switch is momentary, so you just need to short the pins for a half second or so.

Try that and see if it works for you.

I've tried it to the best of my ability and got no results.

Replace the Motherboard. If you're confident that your wall power, power supply, and power button are working, it's likely that there is a problem with your PC's Motherboard and should be replaced.

John

It was only a matter of time before it kicked off. Going to be a long 4 months until I can afford it. Shall I mark as solved or leave open for a few month until I get it fixed?

Is this the same computer you have listed in your system specs?

Motherboard: ASUSTeK Computer INC. M4A77TD

Some of our other members may have some additional comments to add. So keep the thread open for awhile longer.

If money is an issue, maybe go with Manufacturer refurbished with 60 day warranty. Cost is about $50. for your Mobo.