Aurora R7, randomly restarting, full reboot with no warning

Also, are the shutoffs only during load or only when you're using the tablet?  Or do they occur randomly even under idle? 

1.  You can try running the built in diagnostics ePSA tests to see if any hardware errors come up.  Not all issues will always show up. 

2.  You can also try updating the GPU drivers (or do a "clean install" directly from Nvidia). 

3.  If you think it may be the GPU, try seeing if the error goes away by connecting the monitor to onboard graphics and removing the GPU. 

4. You can also check event viewer and reliability monitor to see what critical issues show up. 

#2 above - clean install of GPU drivers: 

Kudos for equipping the system with the nice APC-UPS . 

Temporarily, set Windows to NOT reboot on a OS crash. Also, to write crash-logs.

First, it must If it passes ePSA test (as @r72019  mentioned )

Second, what shows in Windows reliability report? Do you see any critical (red) errors ? 

Either insufficient power distribution to gpu or suboptimal psu power output could cause random shut down. @r72019 has suggested good idea of minimizing power draw from psu by removing gpu and getting video from iGPU.  Run system at idle and see what happens. If no more random crash, consider testing fully loaded system w different working psu connected outside case. The only potential damage risk to components is computers are not supposed to be hard shut down too many times according to old school teaching.  Perhaps it has to do w voltage spikes when power switch is suddenly turned off.  In your case it is more likely system crashes for lack of power not from hard shut down, so risk is lower imo.

@Tesla1856  @r72019 @redxps630 Thank you all for the help and suggestions. 

Ok, so I've unplugged the graphics tablet for a while and just experienced my first crash in 5 days... 

Windows event viewer shows these critical errors as Event ID: 41 , Source: Kernel-Power , Task Category: (63)

Windows Reliability Monitor summarizes them as "Windows was not properly shut down."

I see lots of critical errors inside the reliability monitor (mostly different application failures, but nothing seems to be correlating with the windows shut down critical errors (no program is consistently showing a critical error just before or at the same time).

After ceasing to use the tablet, this is the first crash in 5 days. When I was using the tablet, I had 6 total crashes within back to back days... so it still feels related to that tablet driver, but it could just be coincidence. This crash was just using the internet at relatively low power for the GPU and CPU. 

I ran the SupportAssist updates, hardware scans, file cleaner, performance tuner and network optimizer.... which also updated the bios and restarted the system. I'll see if it crashes still after this... 

I put both GPU's through the Nvidia stress test - both passed with no crashes.

I'll now run a system file checker and also re-install Nvidia GPU drivers fresh.

I will also shut down and then do the f12 ePSA test.

Thanks everyone for the suggestions. Crossing my fingers that the issue got repaired during supportassist updates...

1. Ok, so I've unplugged the graphics tablet for a while and just experienced my first crash in 5 days...

2. Windows event viewer shows these critical errors as Event ID: 41 , Source: Kernel-Power , Task Category: (63)
Windows Reliability Monitor summarizes them as "Windows was not properly shut down."

3. I see lots of critical errors inside the reliability monitor (mostly different application failures, but nothing seems to be correlating with the windows shut down critical errors

4. (no program is consistently showing a critical error just before or at the same time).

=========================

1. Sounds like system is a bit more stable ... good.

2. Normal after a crash or "dirty shut-down".

3. There should be no critical errors in red. An effort should be had to clean those up. 

4. Irrelevant. System just runs poorly and finally crashes down later.

GAMON isnt a dell product so you would have to ask them.

You did not provide any event log errors or dumps so the first thing to try is disable auto reboot for a crash and check the dumps to see whats going on.

@TobyWanShinobi :

Format C:

Clarification: It's in jest. What I'm suggesting is try a clean Win10 install.

Note that last comment on this thread was in May. I have similar problems. Could you please let me know if and how yours was resolved?