On July-1-2016, I purchased an Intel NUC Skull Canyon NUC6i7KYK kit.
Along with the NUC6i7KYK, I purchased:
- SAMSUNG 950 PRO M.2 512GB PCI-Express 3.0 SSD MZ-V5P512BW
- G.SKILL Ripjaws Series 16GB (2 x 8G) SO-DIMM DDR4 2800 Memory Model F4-2800C18D-16GRS
- Windows 10 Pro (64-bit) license and media
I installed Windows 10 Pro, plus all the then-current hardware drivers from the Intel support site for the NUC6i7KYK device. The NUC6i7KYK power adapter is connected to a UPS. The system is connected to the local wired network, not using the wireless network adapter. There is one external USB drive permanently connected (used for backups). The original monitor was a Dell monitor connected using an HDMI cable; the current monitor (recently purchased) is a BenQ monitor connected via a mini-DisplayPort cable.
Since the beginning, I have experienced occasional lockups/hangs from sleep mode; when this happens, the power light on the NUC6i7KYK is on (solid), the monitor is in sleep state, but the system won't respond to keyboard or mouse activity or to Ctrl-Alt-Del. The only way to recover is to hold down the power button until it shuts down, and then power it on again. This happens maybe once or twice a month, with no apparent pattern; sometimes it will happen twice in a few days, sometimes not at all for 3-4 weeks. The event viewer does not show any errors at the time of the hang; no events at all are listed in a several-hour period from when the system presumably locked-up until the system is powered off and on again. There are no crash dumps when this happens (and crash dumps are enabled in Windows). The system just seems to stop, it doesn't crash. There is lots of free space on the system drive. I usually only leave one or two browser applications running (with several tabs open in each); I normally shut down any other applications before I let the system sleep.
I have upgraded the Intel drivers as they have become available. And, I have installed all Windows updates as they have become available. I am not using any insider or beta Windows releases. The Winver utility currently shows Windows 10 Pro (64-bit) version 1607 (Build 14393.693).
The system BIOS is currently version 0042 (Sep-29-2016). I used Samsung Magician to upgrade the firmware on the SSD M.2 drive - it is currently upgraded to the latest, version 2B0QBXX7.
I have installed drivers from https://downloadcenter.intel.com/product/89187/Intel-NUC-Kit-NUC6i7KYK
The current versions of some of the installed drivers are:
- Intel Iris Pro Graphics 580 - driver Intel version 184.108.40.20690 (Jan-18-2017), updated from v220.127.116.1142 (Dec-1-2016)
- Intel wired network - Intel driver version 18.104.22.168 (Aug-4-2016)
- Samsung NVMe controller - Samsung driver version 1.4.17 (Dec-11-2015)
- Bluetooth 19.40.1702.1059 (Jan-9-2017)
I have tested the memory using the Windows memory diagnostic tool as well as the Passmark Memtest86 application (from a bootable USB drive). Both of these show zero memory errors.
I have run SFC/scannow in Windows and it shows no errors.
Are there any suggestions regarding what might be causing this problem? Is it possible that there is a hardware problem?