Driver crashing/screen frozen

Hello, so have been having this problem for a while (two years?) but never solved it (probably need to buy some new part).
Situation is like that: at some situation screen flickers for 0.5sec and freezes, then usually it like tabs out to desktop and back and unfreezes. it takes like 10-15sec but because usually it happens in raids…I am dead. It seems to be happening more recently and it has become a serious issue in the raid. Event logger has this error/driver crash:
Display driver amdkmdag stopped responding and has successfully recovered. (event id 4101)

some extra details: tried many many things, even installed newer windows version (previously I used win 8.1; now win 10), updated drivers, cleaned my pc from dust, basically did all standart troubleshooting things).

This might be somewhat helpful (thats like my only hope tbh): it usually crashes at specific times (maybe when graphics are more demanding? not sure). Got 2 very clear examples in castle nathria:

  1. in council fight, on last boss (we killing frieda, niklaus, stavros) when you get dancing fools mechanic and almost all room goes red + there is pair up thingy where there is red puddles on the ground. Crashed like 4 times today in 10min span
  2. crashing on Sire Denathrius too when we getting dragged to another floor from phase1 to intermission to phase2. crashed many times at exactly that spot. this one is a bit better because that falling down takes like 10sec or so and it usually uncrashes and I live.

So are those two scenarios somewhat special in resourses/graphics? or just harder on gpu and thats the reason?

tried tracking many things on pc (like cpu temp, gpu temp, ram usage etc etc, nothing very unusual even during crash which is crazy).

While googling that error I found many suggestions, maybe most common was failing power supply unit but nothing too certain.

issue is that I cant afford to replace a part randomly just to find out it doesnt work. So my hope is that someone might know something maybe about those specific situations.

I dont think it matters but I am sure someone might ask: radeon r7370; win 10;8gb ram; dx 12; somewhat old pc but doesnt lag even at pretty good settings. Also crashes happening regardless if I play on 1 5 6 hraphics (projected textures enabled in all cases).

edit: happening just in wow and 85% cases raid, 13% dungeons, 2% elsewhere. but I dont game anything else

I would’ve asked because what’s happening to you was happening to me during prepatch. I constantly ran out of ram and the game was freezing and crashing. Ever since i upgraded it to 16gb, i have no issues with it.

sounds liek whats happening to me for past 2 weeks, doesnt happen in anything but wow though

Happening to me and my guildies too. Inerva (summoning orbs) and council fight (same dancing fool /dark recital) are the worst offenders.

No common denominator on hardware, myself I’m on 5900x / 6900XT and 32Gb hardware and guildies with Nvidia GPUs and Intel CPUs have exact same issues. Only thing common thing always for it occuring is group size. If we go 30 man it happens. Lower to 20 it lags…no crash.

I recall googling this issue and one of the most common answers wasnt gpu (some people literally replaced gpu just to get the same problem on new gpu) but instead was power supply unit (psu).
And explanation was that current psu is failing and there isnt enough power for video card and computer shuts down non essential things first (in this case its graphics card). But that was just speculation.
Wish I had some spare psu to test it iut