Case and CPU Fans stay on after shutdown/sleep/hibernation

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scarter2000

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Aug 7, 2014
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Having found multiple people experiencing this problem, and no relevant solution, I thought I'd try querying again!

My specs are:

Windows 8.1 Pro 64bit
CPU: Intel i5 2400
GPU: Sapphire Radeon R9 280X
Motherboard: ASUS P8Z68-V LX
PSU: Corsair CXM 750W

The GPU and PSU are recent upgrades. All connections to the motherboard are secure.
When shutting down/sleeping or hibernating my computer, the process completes successfully, but the case still receives power. Fans and lights stay on, and the disk drive remains operational. Unfortunately, the rest of the system is shut down, so power buttons, the mouse, keyboard, and the reset button are all unresponsive. The only fix for this problem is a hard reset, which is a pain, especially when trying to hibernate.

The BIOS is flashed to the latest version, and all drivers are up to date.

HELP!
 
Solution
P
Windows 8/8.1 + lots of RAM + slow HDD/SSD = BUG!
Open administrative command prompt and type the command `powercfg -h off`. This will disable hibernation and hybrid boot, which are the actual cause. On Sleep it will behave normally, on shutdown it will completely halt, just like Windows 7, instead of attempting a hibernation.

Hibernation/hybrid shutdown may take particularily long if you have lots of RAM (4 gigs, maybe?) and slow HDD (or one with bad sectors, like dad's). In his case, a shutdown takes a full 5 minutes after the display halts. He's got 3 gigs of RAM.

If you can afford it... (I can't, so why do I think you can? whatever) you can install an older OS, older than Windows 8. But if disabling hibernation doesn't do it, this...
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Hello man

Hello man

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Aug 11, 2013
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Hmmm.... I would say you should try a CMOS reset, but if you just flashed the BIOS to the latest version, that should not be necessary. You ever tried returning the board? It sounds to me like either the board or the PSU.
 
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paulstelian97

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Aug 9, 2014
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Windows 8/8.1 + lots of RAM + slow HDD/SSD = BUG!
Open administrative command prompt and type the command `powercfg -h off`. This will disable hibernation and hybrid boot, which are the actual cause. On Sleep it will behave normally, on shutdown it will completely halt, just like Windows 7, instead of attempting a hibernation.

Hibernation/hybrid shutdown may take particularily long if you have lots of RAM (4 gigs, maybe?) and slow HDD (or one with bad sectors, like dad's). In his case, a shutdown takes a full 5 minutes after the display halts. He's got 3 gigs of RAM.

If you can afford it... (I can't, so why do I think you can? whatever) you can install an older OS, older than Windows 8. But if disabling hibernation doesn't do it, this reinstallation won't do it either.
 
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Solution
Hello man

Hello man

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Aug 11, 2013
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On SATA 6GB/S the SSD could theoretically move all of the data from the RAM in under 1 second. Should not be an issue. I would consider a lot of ram to be 64GB. 128GB is a LOT lot. I use 16.
 
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paulstelian97

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Aug 9, 2014
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('muricans :) )
Well, maybe that would happen if the disk drivers were indeed running at full speed (which might not be happening when hibernating). Dad's laptop can write to the HDD, serially, about 140 MB per second, which would mean 22 seconds, but it takes several minutes instead, so it doesn't write at full speed.
Also, I don't think an SSD could write at that speed (I can write 4 gigs per second in RAM!, so you certainly have a much more powerful system than me :)) ) but who knows? With my RAM speed it would take it 4 seconds just to read the data! And the speed doubled after a relatively recent upgrade in terms of RAM -- I once had 1 GB and it was able to write 2 gigs per second!

Maybe you flashed the BIOS, but did you actually reset it? (and, while you're there, maybe manually configure power options)
Also, maybe 8/8.1 itself is buggy, just try installing these updates that appeared on 12th this month and see if it solves it! There are 1 gig of updates, including Office updates, on my 32-bit system. The important update, which is 100 megs, is the only optional one.
 
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paulstelian97

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Aug 9, 2014
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Yeah, I guess :)) If it does the same thing on Windows 7 or a live CD (any linux distribution, but also Windows Recovery Environment will do) then consider replacing your PSU, as someone else suggested.
 
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jrozycki

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Sep 13, 2011
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I've had this issue for some time. Given you mentioned it's a new GPU, it may be related to my issue. I have two GPU and every time the system is shut down the fans, solid activity light, and heat sink light stay on. Taking one GPU out fixes the issue. Obviously this isn't a permanent fix but can help pinpoint what the issue is. I tried it all. New OS with only one SSD and on GPU. The resolution came to having possibly a system board issue which didn't light two GPU. Still flipping the switch to turn it off.
 
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