PC restarts unexpectedly following an upgrade.
PC restarts unexpectedly following an upgrade.
Hi everyone, I’m really struggling with my PC and feel like I’ve hit my limit with troubleshooting.
About two months ago, I upgraded the motherboard, CPU, and RAM. Since then, I’ve experienced random reboots without any blue screen or error logs. It looks like power loss followed by a quick restart.
These reboots happen unpredictably, not tied to system load, and can occur multiple times in a single afternoon or even span weeks before they start again—something hard to replicate so far.
I’ve shared my current specifications and tried all the steps I could. Here’s what I’ve done:
Motherboard: ASUS PRIME B650M-A WIFI II (new)
GPU: MSI GAMING X TRIO 2080 SUPER (old)
CPU: Ryzen 5 7600 (new)
RAM: Corsair Vengeance RGB 32GB 6000MHz CL36 DDR5 (new, after upgrade)
PSU: Equites V700 700W 80+ Bronze (new, after upgrade)
SSD: Samsung 980 Pro 1TB (old)
My troubleshooting attempts so far include:
- Sending CPU/Motherboard back for testing – no faults detected
- Replacing RAM after the initial upgrade
- Swapping PSU after suspecting a fault
- Running all benchmarking and stress tests without issues or overheating
- Running PC for extended periods without USB devices
- Removing old hard drive and SSD
- Performing a clean Windows reinstall on M.2
- Using driver removal software and ensuring a clean install
- Scanning Event Viewer for problems before reboots (only a Kernel Power warning after boot)
- Adjusting EXPO and PBO settings
- Updating BIOS
- Running Memtest and sfc scan
I’m very likely to have overlooked something, but I’m open to any advice. I’ve been running the PC for about ten days without reboots while using the iGPU and without the 2080, and so far it hasn’t shown any signs of trouble.
I don’t plan to replace my GPU anytime soon, so I’ll leave that part undecided.
Thanks for taking the time to read this. I hope someone can help me out.
Initial impression was whether a new Windows installation was done during the replacement of components.
Second consideration: you require a fresh PSU. The 2000 series graphics cards experience power surges, while your 2080 model is causing issues with the power supply.
I owned an EVGA 2080 ti on an EVGA 850w PSU; gaming would unexpectedly restart, as if the system was reset. After replacing it with a used EVGA 1600w G2, the problem resolved. For a 2080, consider a robust 850W PSU or opt for a newer ATX3.0 model with a 750W capacity. These newer units include the 12+4 pin cable and are designed to manage power spikes effectively.
I've carried out two fresh reinstalls of windows while swapping components. It might have been clearer, but the PSU was already replaced after these crashes occurred. They happen even when the PC is idle and drawing minimal power. I also tried the setup with a brand new 1000W PSU from a store.