Windows 10: Inexplicable Reboot: no logs anywhere

-- Windows version 1909 (OS Build 18363.959)

SO. yeah. as the title says, my win10 is arbitrarily rebooting, this has happened multiple times. There are NO crash logs anywhere, neither Event Viewer nor Reliability Monitor find anything, even after activating higher levels of logging via various measures found online. The restart is instantaneous, going straight from fully operational to boot screen without any error screen whatsoever. no suspicious application crashes are logged, no hardware alerts are logged either.

Id initially suspect my PSU, but said PSU is relatively new (about 2 years), and not only does room heat have no observable impact on the crash ratio, but the rebooting only seems to happen within the first 10 minutes or so from boot time: if my computer makes it past that window without rebooting then it does not have any risk of doing it until next reboot attempt. This un-suggests power failure issues, which generally become *more* likely to trigger the longer the PC is left running.

It could be a virus, but the intermittent nature of the problem and the general reliability of avast combined with multiple extant firewalls seems to make that unlikely. As an aside, occasionally this issue occurs two times in a row. no idea why.

yeah, its a 10 year old PC, but i don't have the monetary wherewithal to do a full replace unless its absolutely necessary. The model number of my system in profile is basically exactly what i am running save for the replacement PSU, which was needed to add the graphics card.
Hopefully someone has an idea for how to track down the issue?

:)

 

Inexplicable restarts

Thanks for your patient help and analysis, zbook. I'll step through some of your suggestions over the next few days - there's a lot to do and some look a bit hairy! That is, for a PC that is working sweetly right now...

Meanwhile, as requested in the BSOD thread (sorry, I misunderstood and posted there by mistake), I've attached both ZIP files.
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One step I did try right away was to answer your question about whether my BIOS is up-to-date. I had no success at the AMI site but did get some info from this commercial site:





It was one of the '9' (I counted 10) listed here:





Terry, East Grinstead, UK

 

Random Reboots

I've had, as the title suggests, random reboots for the length of the time since I've built my computer (2 years roughly) and they're completely inexplicable.

It happens under no load, high load, watching movies, listening to music, playing games, browsing the web, sitting by itself in the room when the my sleeping monitor is even saying WTF?!

There aren't any Events to view other than the usual 0xC*D event when the service just shrugs at me.

Any thoughts or suggestions? Maybe someone has had the same problem before and it was just a loose molex connection? I'm baffled.

 

Dish Anywhere - Receiver Offline

I have tried multiple times to connect Dish Anywhere from my Windows 10 Microsoft Surface. It works on my IPAD and Kindle - but not the Surface. The error is "Receiver Offline". I have followed the steps to reset the Hopper w/Sling and the Internet
Router without success. There is no Dish Anywhere app for Windows, simply go to Dish and log in. Any suggestions?