System unexpectedly shutting down or restarting randomly
System unexpectedly shutting down or restarting randomly
Motherboard: ASUS A620M with Wi-Fi CPU AMD Ryzen 5 7600X
GPU: Gigabyte AMD Radeon 9060xt 16GB
Power Supply: NZXT C850
Storage: Intel 660P 1TB NVMe SSD
RAM: Teamgroup T-force Delta 32GB (2x 16GB) DDR5-6000 CL30
Upgrade notes: This is my first PC build outside a prebuilt rig. It worked for about 30 minutes before random reboots. Sometimes it would freeze briefly then restart, other times it stayed frozen until a hard reset. Occasionally it would just reboot immediately or crash in BIOS. I’ve reinstalled Windows, checked RAM, reset CMOS, and even ran memory diagnostics. At one point it bricked after a diagnostic. I ordered a replacement, which arrived yesterday and functioned properly for 15 minutes before restarting again. I ran OCCT without issues first, followed by a CPU stress test (10 mins) and a memory stress test (15 mins at 80% usage). Everything seemed normal. The only odd thing was that the system rebooted 41 times without a clean shutdown. I’m really struggling to figure this out and need help.
Typically when your PC crashes and restarts into BIOS, it suggests the BIOS isn't recognizing any boot manager. You might see your SSD visible in BIOS after the crash, but problems could lie elsewhere before you start troubleshooting. First check if your BIOS version is up to date; outdated versions may need a chipset update. Then ensure your Windows is fully updated. If neither resolves the issue, it’s likely the SSD itself is faulty. Also consider whether the drive is new or older than expected.
it didn't jump straight into BIOS; it would boot normally and switch to Windows right away. I noted it would freeze even when in BIOS mode. It rebooted roughly 50 minutes after the previous one, leaving a black screen with peripherals and fans active but no updates—Windows isn’t running, so the chipset isn’t working on this board. This suggests something is wrong with my CPU.
Event ID 41 indicates an unexpected power loss, making it a symptom rather than the main issue. The system freezes in BIOS, which excludes software or Windows as the cause. I’d begin by checking the RAM with the default JEDEC speed (e.g., 4800 MT/s) instead of the XMP/EXPO 6000 profile, since instability there can lead to this behavior. Also verify that your PSU cables are properly connected—24-pin plus 8-pin CPU should be fully seated. If possible, use a different PSU to confirm power delivery is the problem. If the issue persists with standard RAM and a reliable PSU, it likely points to a faulty CPU or motherboard.
I understand this context, so I kept the original wording. It was only necessary to use “only” as expected. I checked earlier with another PSU under the same conditions—exposure caused the issue, and all connections were fresh, confirming a secure setup. The problem seems linked to an unexpected CPU trigger.
the ssd is roughly five years old. I removed it from my previous setup because the budget didn’t cover a 2tb drive, though I’m not sure that’s the real problem—it’s also freezing in the bios.
Given what you've checked so far, I'd probably run tests like OC or Prime95 with small FFTs to really test the CPU performance. It might help determine if it's freezing under stress or locking up sooner. Also, make sure your motherboard has the newest AGESA BIOS—old AM5 versions were known for issues even with default settings. If it still freezes only in BIOS and CPU stress tests, that points more strongly to a faulty processor, especially after you changed the board.
I don't think I'll be able to, since I no longer have the packaging. I might need to purchase a new one altogether.