I wanna back up your current problems. I am using Gigabyte rx6800xt using my corsair 750 watts psu and I dont have blackscreen nor shutting down problems with this gpu. However I have problems rendering the graphics on games. The first hour I play its ok all fine then the game crash and send me a report window, I fill it up and send to amd, still no email reply. Right now I have problems with rendom flickering lines all over the screen when I play. When I alt tab on windows its all okay, I can watch video, surf with no problem. All of my games with shadow rendering have flickering random lines. As of now the only solution I did is disable or lower down the shadow quality of the game to lessen the graphics problem. I think this is more of a driver issue on rx6800xt. I even reformat my system, install fresh windows and fresh amd drivers still got the graphics problem, I got normal temp and try not to OC it. No solution yet.
Since your issue is much different than the OPs or the other responders you might want to start your own thread so your issues get more attention and it will be easier for others that may have the same problem to find an open thread on the topic.
Sounds like you tried to contact AMD, FYI if you used the Bug Report in Radeon Settings they will not get back to you. That is one way reporting only.
For two way support you go here: https://www.amd.com/en/support/contact-email-form
Reporting a expected bug is not a bad idea to make sure you do both.
Nope, no other GPU utilities are installed. I've literally have done clean Windows 10 installs, put the chipset and graphics drivers on, installed Red Dead Redemption 2 and tested.
Within about 10 - 15minutes the screen goes black and the system reboots.
It looks like blackscreening and audio buzz and PC reboot is back with Adrenalin 2020 20.11.2 driver.
I have had 2 of these recently on RX5700XT GPU after a long time with no problems.
I am running on Windows 10 Pro 2004 with latest patch updates.
PC system checks are all o.k.
Karhu RamTest passes in Windows with GPU running at 2000% coverage before I stopped the test.
I have been having this issue for over a year now with the Vega 56 and a EVGA 850 GQ, 80+ GOLD and have been given the same runaround about the PSU not supplying enough power for these power spikes. I've RMA'd and tried all the 'fixes' with two different cards. There's no reason for even that card to be spiking enough power to pop with a PSU like this, but here we are. The running theory is that the PSU can't supply power quickly enough to deal with the spike, which is pretty ridiculous for a 850W PSU at 71A on the 12V. I've been running back and forth on what to get this generation, but if this problem still exists with the current generation of cards (I've seen reports with the 5000 series as well), I feel like the choice has been made for me. Do you need to test PSU's and slap an AMD sticker on them so people don't run into this issue? It's a little difficult want to buy a $700 piece of equipment when you don't trust it to work without blowing another $150 on a new PSU that someone has tested to work.
Ryzen 7 3700X
Gigabyte x570 Pro Wifi
Corsair Vengeance RGB Pro 32GB
MSI Radeon RX Vega 56 Air Boost 8GB OC
EVGA 850 GQ, 80+ GOLD
I am not sure if AMD monitor total GPU power input on the RX6000 series by adding current sensors on all power input lines?
Nvida GPUs do that.
AMD do not do that on RX5700XT and earlier as far as I know.
They just measure "GPU Die" input power.
I am waiting for Buildzoid PCB analysis of the RX6000 series PCB to find out.
Some interesting and potentially good news for the PowerColor Red Devil RX6800XT.
It is using TDA21472 smart power stages which incorporate accurate current monitoring.
Need to find out if those are also used on the RX6800XT Reference cards.
So I have got an update regarding my issue with my new 6800XT black screening and the need to restart via turning off and on the power supply again. As suggested the root issue actually seems to stem from my Bequiet PSU with 700W actually not being able to handle those spikes. Got myself a new Seasonic Focus Gold 850W PSU and even the heaviest load games run stable now. Kinda getting crazy upgrading PSUs every 2 GPU generations now. 4 Years ago on my 550W to 700W 2 years ago and now up to 850W... so if any of you have similar issues try different PSUs if available.