Does the system wake up normally if you just press the power button or do you have to hold it down for a moment?
Can you provide a copy of the msinfo32 report (press Windows* key + R key, type “msinfo32”, press OK and then File, Export)?
Almost the exact same unit here. 850 EVO, Crucial Ram, Win8.1
You have a wireless keyboard or USB? I have a wireless but it's on my old desktop and I decided to go with a USB with the NUC just in case I need to get to the BIOS.
I did experience some lack of video( not related to sleep issue) but found out it was due to a bad HDMI cable. No problems coming out of sleep after 10 minute setting using any key on the USB keyboard. My keyboard and mouse are plugged in on the Asus monitor's outboard USB ports.
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The system comes out of sleep just fine when pressing the power button. No need to hold it down for a moment.
It's a Logitech K200 USB keyboard
I've found a solution however:
I've enabled both the USB S4/S5 Sleep Power setting and the one that appears below it.
Now the system responds correctly to keyboard and mouse button presses to exit sleep.
I still see this as a problem Intel needs to look into since S4/S5 settings should not be affecting S3!
Any response from Intel on this? Having the same issue
Have you tested with the S4/S5 settings at BIOS level?
I'll try that now.
After investigating, it seems the S4 is to turn the USB off. If I do that, I won't be able to wake the PC up with the USB> BLuetooth keyboard.
I don't think this is an S4/S5 issue, I think the PC does indeed awake, it's probably a video driver issue as these NUC i5's have had many (many) issues with Video drivers.