Plenty of threads out there already with similar performance / crash issues so far this year, though haven’t found anything that’s worked for me yet, hoping there may be a slim chance someone else has found something else to try.
Currently using a RoG Strix Scar with 8th gen Intel Core i7 / GTX 1060, which has been used since just before BfA was out. Have not had a single crash / performance issue like this until about early November 2020 after the 9.x prepatch released. Unlike many with h/w or driver issues, played through all of the 8.3.x content totally fine.
WoW will randomly hard-lock / freeze my laptop at random spots during play, can be as little as 2-3 mins, can be as long as 2 hours between crashes (always a total hard-lock, have to hard-power off and on every time.) Haven’t seen any stuttering / artifacting / micro-freezing others have at all previous to this, or during. Appears to occur anywhere in the world, not just SL zones.
Have made sure I’m using current drivers for everything, have done both a full reinstall of WoW and Win 10 at this point (build 20H2), have tried eliminating all other running apps, no effect. Crash doesn’t appear to occur at any other time other than while in WoW except for a single time when this freeze occurred while bnet was loading up after a reboot (about 4 days ago). No other apps, level of load on cpu/ram seem to cause the issue.
No bios setting differences (e.g. turning on/off Virtualization items, power management) make a difference. Windows is running in performance mode for any power / nvidia settings that matter. Neither wired network / wireless or using wired vs BT headset matters.
Macros disabled, wow performance settings on a 6, have tried DX12/11/11 legacy and messing with any of the advanced settings, no change.
Am using M.2 nvme Samsung 970 SSD, upgraded to a 2TB vs a 500GB, different ram, no change in either case. Internal CPU/gfx fans appear fine and working.
Typically I find SFC or DISM will find/clear issues after enough crashes, but unsure if that’s just a side effect; no significant info in event viewer that’s pointing to anything.
SO at this point I’m willing to try just about anything - have had like 200+ freezes in the last 3 weeks or so, have ruled out everything save the mobo / gfx (but as stated, no freeze in where except WoW), so unless it’s part of the ‘known’ WoW gfx issues this year or the nVidia drivers since about April 2020, I’m at a bit of a loss.
I just helped a friend last work through some crashing issues and so far the crashing has stopped entirely. They were originally crashing every hour or so. Their issues seems to have been related to software conflicts. Based on the system specs you have, I can only assume that your peripherals(keyboard and mouse) are something fancy as well, possibly even a razer device. If you have similar devices such as corsair peripherals, I would try to do the same thing as the below razer steps but just with corsair being uninstalled/reinstalled and checking for driver updates for the devices.