Specs:
OS - Windows 10 Pro
MB - Gigabyte B560 HD3
PSU - EVGA 650 GT
CPU - i5 10400 2.9 GHz
RAM - 16 GB DDR4 2666 MHz
GPU - MSI RX 6600 XT Mech 2X 8GB
Storage - 250 GB Kingston SSD (OS), 500 GB Kingston SSD (Games), 1 TB HDD( Other)
Problem:
So I just bought a RX 6600 XT and ever since I installed it my PC won't shutdown or sleep. If I try to do either it will shutdown/sleep (leds and fans off) and then immediately start up again. I think I've tried just about everything at this point. I used this thread to troubleshoot:
forums.tomshardware.com
To summarize here, I've tried:
Please help and thanks!
OS - Windows 10 Pro
MB - Gigabyte B560 HD3
PSU - EVGA 650 GT
CPU - i5 10400 2.9 GHz
RAM - 16 GB DDR4 2666 MHz
GPU - MSI RX 6600 XT Mech 2X 8GB
Storage - 250 GB Kingston SSD (OS), 500 GB Kingston SSD (Games), 1 TB HDD( Other)
Problem:
So I just bought a RX 6600 XT and ever since I installed it my PC won't shutdown or sleep. If I try to do either it will shutdown/sleep (leds and fans off) and then immediately start up again. I think I've tried just about everything at this point. I used this thread to troubleshoot:
Question - PC Restarts after Shutdown [Solved]
First off, the SPECS! OS: Win 7 Pro CPU: Intel i7-4770k MB: Asus Maximus VI Formula RAM: 2x8GB G.Skill PSU: Corsair 850w GPU: RTX 2070 SSD 1: Samsung 840 Evo SSD 2: Samsung 840 Pro SSD 3: Samsung 860 Evo HDD: SeaGate Barracuda How it started: I was shutting down my PC for the night, then...

To summarize here, I've tried:
- uninstalling and reinstalling drivers
- editing registry files (as indicated in other thread)
- jumping CMOS pins
- taking MB battery out for 5 min
- disabled fast startup
- powercfg h off
Please help and thanks!