PC not turning off once shutting down w/ video

Soldato
Joined
12 Jun 2012
Posts
3,918
Location
West Yorkshire
Hi guys,

Looking for some advice if anyone has ran into this problem before.

When i press shutdown on my PC, it looks like the PC has turned off with the monitor going into standby etc although the fans/lights/GPU still power on. The fans/water loop actually speed up. I have never seen this before and its driving me insane. To shut down on a night i am having to wait for this and then hold the power button. I took a small video to show you what i mean. The GPU is brand new so it isnt that.

I am running on a EVGA 650w G2 PSU.


Cheers.
 
The longest I've left it is 5 minutes and it's just stays the same. Shall I leave longer?

What I've tried with googling.

  • Revert back to v9 of Intel management thingy
  • Disabled fast start
  • Turned all over clocks off
  • Updated asus bios up to date.
  • Uninstalled ai suite 3.
All the same.

Currently doing a fresh win 10 format. Really don't want to go back to 7.
 
Did it only start doing it when you upgraded to windows 10?

Reason I ask, is that mine randomly does not shut down properly since I upgraded to 10 last year. It shuts off all of the disks then just sits there for 20 seconds or so before showing the POST screen and starting back up again. (but it's random as to whether it restarts or if it actually powers off) I've read some info on this problem being related to quick boot, but in my case, it was never enabled so it wasn't the cause. (I'm yet to find the cause for mine)
 
It was working fine before then I put a gpu in ages ago and it was from then. Swapped gpu now so rolled that out. I guess it did a windows update too? It's so annoying because the system is running perfect apart from shutting down. I can restart fine and everything. At least yours does it sometimes. Mines everytime haha. Waiting 5 mins and it still didn't shut off.
 
Just to confirm, a fresh windows install didn't work. So this is either Windows 10 bug itself or it's the motherboard?

I don't think it's a PSU issue as the PC works totally fine powered on etc.
 
I've ran the powercfg h off command. I think this is hibernate?

Good decision.

I would also be tempted to check 'Power Options' and disable the sleep options, if they're still enabled, as it's possible that they're still active and it would be good to rule them out as a possible cause.
 
Good decision.

I would also be tempted to check 'Power Options' and disable the sleep options, if they're still enabled, as it's possible that they're still active and it would be good to rule them out as a possible cause.

Good tip I will double check this tonight. I really don't want to take it all out to RMA the mobo.
 
Right. I did a bit more testing and I think it's my psu?

If I have fans on and no pump. Shuts down.

If I have pump on but no fans it shuts down

Plug both back in and doesn't shut down.

Both pump and fans are PWM.

What you think?
 
Looking like a strong contender.

Have you tried clearing the BIOS or even flashing to a newer release? - still possible it could be a conflict of sorts...

Also, have you tried disabling the PWM in the BIOS as in theory if it was the PSU it would shut down with both plugged back in?

Process of elimination now i'm afraid...
 
Found the issue.

I have a splitter (cable) for the fans and it appears that if I plug one of the points in, it stops the shutdown. Unplug that and it starts working again. Going to plug the other fans that's now unplugged into another port of the mobo to confirm this and not it being a psu issue. Also the 4 pin Molex doesn't look that cracking either. Will buy a new cable if so.
 
Great!

I hate jumping straight to the PSU as the culprit as it's such an expensive mistake if you get it wrong. And there are so many innocuous reasons why a PC will start having a random conniption fit.

Really hope it's as simple as a faulty cable - been there before - it's frustrating/infuriating but a massive relief at the same time that it's nothing else more serious.

Let me know how you get on - good luck.
 
Ok, so what i thought was fixed - isn't :p

I removed all fans so that i can fit a replacement cable and i thought i would give it a test again. Again it doesn't shut off.

Further testing

  • I have unplugged every fan
  • I have unplugged the pump
  • Pulled power out of GPU
Still doesn't turn off. This makes me think its the motherboard rather than the PSU ?

HALP
 
Sorry to read you're still having problems :/

From your original post:
When i press shutdown on my PC,
Just to clarify does it shut down via the shutdown option within Windows or are you referring to pressing the button on your case - or both?
 
By software mate. So it goes as far as signal stopping and that's it. Shows on video bud what I mean. Not the best exposing it.

Just tried Linux and still the same which rules out software.
 
Just tried Linux and still the same which rules out software.

A bootable Ubuntu stick was my next suggestion - balls...

You're getting close to having to pick a component to RMA - have you considered trying a skeleton setup outside of the case? It's a PITA being under water but if you're on the verge of dismantling anyway?..

Edit: have you done the peper clip test with the PSU and voltmeter? I think you can get PSU testers now - not sure how reliable they are though... Still not a definitive test but if there's an obvious fault with one of the rails it would show up.
 
I used to have this exact problem with an ASUS Rampage II Extreme and an i7 920. It was a fault with the motherboard. RMA the motherboard.
 
Great!

I hate jumping straight to the PSU as the culprit as it's such an expensive mistake if you get it wrong. And there are so many innocuous reasons why a PC will start having a random conniption fit.

Really hope it's as simple as a faulty cable - been there before - it's frustrating/infuriating but a massive relief at the same time that it's nothing else more serious.

Let me know how you get on - good luck.

I don't like testing with a PSU that I feel could be going bad so brought a CX750 for £60 just for testing purposes, that way if my PSU does die I at least have a backup until I decide what to get next.
 
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