Pc won't shut down

[0r10n]

Yesterday I bought a new computer, run prime95 test, all good, and when I wanted to shut it down it fails. It shuts down, and after a second or two, starts it self up. What can be the problem? Can I fix it my self, or do I need my warranty rights for this.

i5 4460

msi gtx750 1gb OC

asus B85m-E

4gb 1600mhz kingston mem

500gb WD blue
Cooler master 500W B-series PSU
 

[TheKDub]

Try the power button, or unplug it.

[Altecice]

unplug all your USB's see if it shuts down then. It could be due to it charging somthing.

[0r10n]

No change when shutting down on power button. To shut down the system I need to press and hold the shutdown button after it try to power up it self. It clicks in a try to power again and then loses power. Can it be the PSU not pulling back the power when shut down, or motherboard? Little update on topic, after i doscover the issue I updated the bios and nothing.

[SkimmyMcG]

That's really odd, maybe try another PSU if you have one, have you tried resetting the CMOS battery?

[ManIkWeet]

Have you installed the correct motherboard drivers? Windows might be sending a signal to reboot instead of shutting down...

[p5ych00n5]

What version of Windows?

 

http://en.kioskea.net/forum/affich-34559-when-i-turn-my-pc-off-it-restarts

 

http://www.pcworld.com/article/2050341/what-to-do-if-your-pc-shuts-down-and-automatically-reboots.html

 

https://answers.microsoft.com/en-us/windows/forum/windows_7-performance/windows-7-computer-restarts-automatically-after/daeb457a-3509-4be9-a85b-2935c8c3e108

[0r10n]

I got it. I pull out the bios battery and refresh cmos, now it's working right. Thanks guys !