Windows 8.1 35+ Second Shutdown on SSD with over 900MB/s Read/Write

MetalSparks

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Jan 24, 2015
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I have Windows 8.1 installed on a Samsung XP941 M.2 SSD on an ASRock Z97 Extreme6 motherboard in its M.2 x4 socket.

After the motherboard post beep the OS starts in 2.5s (ultra fast boot enabled.) However, shutting down the computer takes over 35 seconds; the monitor loses signal in about 2 seconds, but all of the fans stay on.

"Deep Sleep" mode is enabled on my motherboard.

I don't know if this is an OS, motherboard, SSD, or other issue.

Is there anything that can be done to speed up the shutdown? (Excluding disabling Deep Sleep mode, because I only want the computer to turn on when I push the power button.)
 
Is this a new build, does it used to work better?

I don't understand why sleep has to do with shutdown as you described.

The power button WILL ALWAYS turns on from a shutdown state. The power button can be programmed to sleep OR shutdown when in ON state.

Is the HD's LED going banana while shutting down? you may have hibernate turned on.
 
Thank you all for your replies.

jsmithepa, yes, I built the PC from parts. I had a trial version of Windows 7 installed, but I decided that it would be better to use my 8.1 copy instead of paying for a full 7 OS.
Windows 7 shutdown immediately, but was a little slower than 8.1 (8.1 seems to shutdown a second faster, but the fans stay spinning for those 35+ seconds.)
The "Deep Sleep" mode on my motherboard has several different features, but for my purposes it disables USB power distribution. This way my LED mouse and keyboard don't stay lit while the computer is in the S5 state.
Precisely, let me reword: the only way I would like my PC to turn on is by pushing the power button. No wake timers by OS/BIOS, no RTC timers, no keyboard/mouse, just the button.
Hibernate is disabled.

Outlander_04, yes, everything that would turn on the computer other than the power button has been disabled.
I was thinking about using a RAM drive as OS/software cache, but I have not done so already.

ratulrahman, this leads me to believe that it's merely a Windows 8.1 flaw.
 
Oh so you say it does shutdown but the fan staying on bothers you. Look at it this way, this maybe an UNDOCUMENTED FEATURE! Remember those Volvo cars, they too the cooling fan stay on for a while after switch off, kinda disconcerting, but the idea was, the engine is still hot after ignition off, so the fan stay on for a little bit to remote the heat for a little longer. I categorize this as a minor annoyance.
 


That makes perfect sense, but if that's truly the case, then that would mean Microsoft coded the OS to do that, and there should theoretically be a way to turn off that feature.

I'd understand keeping the feature if heat dissipation was truly an issue, but my i7-4790k at 4.4Ghz across all 4 cores idles at 33C at 4.4Ghz and 28C at 800Mhz when ambient/chassis temps are 27C. I also have 13 total fans connected in my desktop (1 PSU, 2 GPU, 3 CPU, 7 Chassis) in what I'd dub a "shove-yank" system (slightly more powerful than a traditional "push-pull,") and because my motherboard keeps all fans at 100% before post (3 seconds to reach post) keeping the PC cool when turning it on isn't a problem.

I guess my modified question would be:
How do I disable the Windows 8.1 feature where all fans temporarily stay on after a shutdown?