Hello!
I have been going insane the past few days trying to resolve some issues. It started with me upgrading my GPU - after installing the new GPU (Sapphire Pure RX 7900 GRE) I started experiencing "instant reboots", specifically when playing the game Elden Ring, usually within 1-5 minutes of starting the game. It would act exactly as if I had hit the reset button, screen suddenly turning black but power still being on, and then the boot sequence begins.
I didn't manage to figure this out, but was hoping it would go away after the other upgrades I had planned which included new motherboard, RAM, processor and Power supply. On top of this I also completely re-installed Windows, cleaning all files, and upgraded from Windows 10 to Windows 11.
The system is much more stable now and I was certain the issue was part of either the old software or the old hardware - however it has happened once more since the rebuild, and this was during casual desktop use instead of in a game. Actually the game has been running great. I'm hoping this particular issue was due to me having the PSU plugged into an extention cord that is was sharing with many other powercables, suspecing the increased power draw from the new GPU could make the PC power-choke and restart from that. I have since plugged the PSU directly into the wall and hasn't had this issue happen again yet.
The other issue I'm now facing is that my PC will restart instead of shutting down whenever I try to do the latter - and this happens maybe 80% of the time. When this started happening I started unplugging peripherals and even the motherboard connectors to the power/reset buttons, thinking I had it fixed when it shut down properly only to fail to shut down again the next time with the same connectors still unplugged.
I have spent many hours googling and trying every solution between heaven and earth and am completely stumped, still having no idea what makes my PC restart like this, these are some of the many things I've tried that I can think of off the top of my head:
- Disabling Fast reboot
- Checking hardware temperature (Nothing above 60c)
- Updating BIOS
- Triple checking Windows/Driver Updates
- Making sure nothing in Device Manager is allowed to wake up the PC
- Running various CMD scans and repairs
- Adjusting Power plans & Settings
- Physically unplugging everything except the PSU and a monitor
- Searching through Event Viewer for clues
- Adjusting regedit entries regarding boot/power sequences
Nothing seems to be able explain this behaviour. If anyone can help me figure this out it would be greatly appreciated and a big relief!
System Specs:
Windows 11
Corsair RM850e ATX 3.0 850w V3
Gigabyte B650 UD AC
AMD Ryzen 5 7600x
Kingston 2x16 GB DDR5 6000MHz
Sapphire Pure RX 7900 GRE