[SOLVED] Computer not turning on after shutting down

[shady1277]

Hi guys, I'm a long time lurker and got a lot of help from the board in the past, but this one doesn't seem to be here /can't seem to find anything.

I have an Asus Z170 pro gaming motherboard with 2x 8gb of RAM And a 660 gtx. Not sure what my PSU is.

Whenever I turn my computer off, by button or shutting down properly, there's a chance the power will cut mid shut down and it won't turn back on without unplugging things, leaving it unplugged over night etc. Usually the motherboard led's will be on but when this happens there are no lights.

Does anyone have any idea at all on what could be happening? Any help at all is appreciated massively.

The system runs completely stable while on

 

[rgd1101]

make and model of the psu?

 

[shady1277]

make and model of the psu?

Not sure, I can't see anything that identifies it on the psu inside the case and I have no receipts for the purchase. Any idea how I could find out? If it helps, it is about 5 or so years old

The motherboard just turned on for a second and the fan on the cpu span before losing power. Usually it would work again until the next shut down.

 

[Vic 40]

Should be a sticker on the side of the psu. Can take a picture of it and post it here.

You can use Imgur to post a picture here,use the "img" link.
Click "new post" ->choose "upload images" -> "browse" ->choose the picture and click "open" ->put cursor on the picture that you uploaded->choose "share links" and copy the img link,paste it in your next post.

 

[shady1277]

Should be a sticker on the side of the psu. Can take a picture of it and post it here.

There's only a serial number that's visible without taking the psu, and I'm not too comfortable with taking out right now.
I can try later though

 

[Vic 40]

Does it run on when having the gtx 660 removed? Use the motherboards i/o for video.

Probably need to remove components to resolve this so get used to do it.

 

[shady1277]

Does it run on when having the gtx 660 removed? Use the motherboards i/o for video.

Probably need to remove components to resolve this so get used to do it.

I'll have to try that later and get back to you

 

[Vic 40]

Okay do let us know.

 

[shady1277]

Okay do let us know.

So I unplugged the 6 pin atx from the graphics card and the leds on my motherboard lit up. I plugged the atx back in and my computer was able to switch on. I haven't got the time to fully test of its still losing power in the shut down, is it possible that a graphics card can cause this to happen? I'll be able to test it on Monday or so, I'll get back with more information then.

 

[Vic 40]

Yes could be gpu,but still could be psu as well.

 

[shady1277]

Yes could be gpu,but still could be psu as well.

Do you think it could be a motherboard issue? I'm really hoping not

 

[Vic 40]

Could be as well, but lets wait with that since others are easier to check.

 

[shady1277]

So just checking in with you guys, to let you know I think I've fixed the issue. It was a loose 4pin going to the cpu power socket on the motherboard. I just gave it a push and now it turns off and on flawlessly

 

[lynx1021]

Glad you found something, I had a issue with my 24pin a while back. It is always best to completely unplug and replug when checking. That way you are kind of cleaning the connectors when you do. PS, you might want to start looking around for another PSU because 5 years is end of life for most PSU's unless they are 80 gold with a 10 year warranty .

 

[shady1277]

Glad you found something, I had a issue with my 24pin a while back. It is always best to completely unplug and replug when checking. That way you are kind of cleaning the connectors when you do. PS, you might want to start looking around for another PSU because 5 years is end of life for most PSU's unless they are 80 gold with a 10 year warranty .

Way ahead of you there, right up until I discovered it accidentally I've been looking at a new psu