For the past several months, at random during games, my PC will freeze up hard with an awful buzzing sound through the speakers for several seconds, followed by a reboot. The sound is identical to what's happening in this video (but there is no real solution there - more on that in a bit).
There is no pattern to when this crash occurs. It is not at all reproduceable to narrow down the cause. On some days I can play games for 5-6 hours in a stretch with no issues, other times it will happen after only 20 minutes.
It does not occur with all games. I can't recall it ever happening with, say, Overwatch, but of games I've played recently I've had it happen with The Division 2, War Thunder, and the Anthem beta. There is no pattern to what is happening in the game when the crash takes place - I've had it happen in the thick of combat and I've had it happen on loading screens.
I monitor all of my system temperatures and stats on a secondary monitor while gaming and there is no issue whatsoever of overheating.
Googling finds no shortage of other people who've experienced this problem or one very much like it with the same symptom of the freeze and buzzing sound... but a wide range of dubious "fixes" ranging from "replace your PSU" to "lol clean the dust out of your PC case it's just overheating" - fixes I've either already ruled out or which would require me to start replacing parts of my system based purely on guesses and hopes.
Obviously I would prefer to get some insight into the real cause before I start investing time and money into new components. My current specs are:
Motherboard: Asus Z170 Pro Gaming (latest BIOS)
CPU: Core i7-7700k
GPU: PNY GTX 1080 XLR8 (drivers fully up to date)
RAM: 16GB Corsair 2666mhz
OS Drive: Samsung 950 Pro 500GB NVMe
Games drive: Samsung 860 Evo 500GB
PSU: Corsair HX750 (2013-era "blue label" model)
Below is an export of the crash dump from the last time this occurred, pulled from BlueScreenView. My understanding is "ntoskrnl.exe" can be any number of things, and I'm hoping somebody can glean some info from the Parameters which will narrow down the cause.
Dump File : 041519-7312-01.dmp
Crash Time : 4/15/2019 6:09:47 PM
Bug Check String :
Bug Check Code : 0x00000133
Parameter 1 : 00000000`00000000
Parameter 2 : 00000000`00000501
Parameter 3 : 00000000`00000500
Parameter 4 : fffff800`b78dd378
Caused By Driver : ntoskrnl.exe
Caused By Address : ntoskrnl.exe+1a9690
File Description : NT Kernel & System
Product Name : Microsoft® Windows® Operating System
Company : Microsoft Corporation
File Version : 10.0.17134.407 (WinBuild.160101.0800)
Processor : x64
Crash Address : ntoskrnl.exe+1a9690
Stack Address 1 :
Stack Address 2 :
Stack Address 3 :
Computer Name :
Full Path : C:\WINDOWS\Minidump\041519-7312-01.dmp
Processors Count : 8
Major Version : 15
Minor Version : 17134
Dump File Size : 3,819,684
Dump File Time : 4/15/2019 6:10:47 PM
Big thanks in advance for anyone who can help!