What exact GPU do you have? Also did you try to set fan speed to manual and put it to 100% at all times. Than try gaming to see if system will crash again?
Also did you try to monitor GPU temp via MSI afterburner or via AMD generic monitoring tool that is included in adrenalin edition? What was the GPU temp right in the moment before crash? Maybe the problem is not GPU temp...
PS. Also set default settings in Radeon Watman, than put fans to 100% and try gaming...
I have the saphire nitro, i havent tried keeping the fans at 100%, i checked that they are gonna be running at 3370 rpm, i will try asap running games like this, the gpu has been crashing right around hitting 70c or more, i've been using the generic monitoring and hwmonitor to keep track of it all.
PS. should i worry about the high RPM of the fans?
I just tried running the fans at 100% at all times with al other settings set to default, and the problem in demanding games persists, this time it crashed just over 60c
So the problem is not in GPU temp cus 95C is max temp for RX580 and you are running stock settings.
Next thing to do is to check windows event viewer. Maybe you can find there what app or driver is causing gane crash.
Also can you provide a bit more information about crashes? Games keep crashing and Windows operate normal after that? Or your complete PC crashes? Do you get blue screens when this happends?
I've got at least to different types of blue screens at least of them says something about thread stuck in device driver, other times i dont get a blue screen and the signal to the monitor ends, in both cases right before the crash my screen starts flickering green and doing weird green flashes right before the crashes.
With 2018 drivers, 95C was the temp where the card would start throttling and lowering your GPU core speed to quickly drop temp. But of course, that's not the temp where card should normally work. Mine AORUS RX580 is running at 69C to 71C and thats normal for that GPU in closed and ventilated case.
Also when you set defaults in Radeon Watman you can see at what temp would fan hit 100% RPM. Think its around 83C.
Try app "WhoCrashed" to read those blue screens. Resplendence Software - WhoCrashed, automatic crash dump analyzer
If you detect driver or app that crashes, maybe removing that would be a fix.
But those screen flickers and green color that you mention sound like a faulty card maybe.