I know there must be so many questions just like this, but none of the solutions I tried did anything.
I've recently upgraded my RX 580 to a 5700 XT while running Windows 7 x64. After upgrading and the first time boot, I checked for any BIOS updates, there were none so I assumed everything was okay. When I logged into Windows 7, obviously the drivers wouldn't work and the display adapter would be "Standard VGA Graphics Adapter" (When no other drivers are available). After running the latest version of the drivers (19.7.2 I believe), everything installed normally, I allowed the display driver to install and rebooted. However, after we see the familiar "Starting Windows" animation with the logo coming together, as soon as the logo had been created, the system stays for about 20 seconds then powers off with no blue screen or message. I booted into safe mode to check the issue and the culprit had been the 5700 XT's drivers. After uninstalling, the system booted.
No matter what I try, I result in the same power off.
If anyone asks, I've tried these steps so far.
-Used DDU to wipe any traces of the driver and then reinstall.
-Reset the BIOS to default settings.
-Install only the display driver using the standard Windows update driver.
Just checked now, found a Monthly Rollup which did NOT solve the issue. No other updates are available.
Also, I just tried this on a temporary full install of Windows 10 which resulted in a freeze during startup.
Then you have a lot of Micro$oft telemetry going on. I have 21 updates I don't install for various reasons. Another big one for me is a update that screws up my printer.
Is your PSU big enough for the 5700XT? It draws 100 more watts than the RX580. Installing AMD's drivers could cause the card to draw more power.
Could you install AMD drivers in Windows 10 or did it freeze before you had the chance?
Try installing your old card. If it works pack up the 5700XT and send it back. It's suppose to work right out of the box.
On AMD site it says minimum psu for the RX 580 is 500 watts. It's 600 watts for the 5700XT on AMD's site. I'd post the links but being a weekend this reply wouldn't show up till Monday.
Either way, I’m certain that power isn’t an issue. After trying about 3 times I got Windows 10 to work just fine. However, Windows 7 will still not accept the drivers and continue to shutdown during startup.
I think I have a 750w power supply anyway.