System auto-reloads unexpectedly during startup.
System auto-reloads unexpectedly during startup.
You're experiencing random restarts on your MSI B450 Mortar Max with an R5 4650G and 2x8GB RAM. The issue started last week after a normal period of two months, and the system has been stable before. Temperatures are within normal ranges, and it even restarts when idle in BIOS. You've already replaced the RAM, PSU, power cord, and tried different power outlets—nothing resolves the problem.
To further diagnose the fault, consider these steps:
- Check for any visible signs of damage or loose connections in the RAM slots.
- Inspect the motherboard for burnt components, especially near the CPU and power connectors.
- Test the system with a known-good motherboard to rule out board-level issues.
- Use a logic analyzer or oscilloscope to monitor power delivery and voltage spikes.
- Verify the BIOS version and ensure it matches the hardware specifications.
- Monitor temperatures closely using a thermal monitor; abnormal readings could point to cooling issues.
Regarding the power supply, ensure it's properly seated and not overloaded. If the case has residual current, it might affect stability—especially if grounding wasn't consistent during assembly. The voltage reading of 1.440V in BIOS could be within normal range for this CPU, but confirm with a multimeter.
Let me know if you'd like guidance on any specific test or component check.
That's the issue I haven't attempted yet. Appreciate the advice. It's functioning properly at first when I power it on for the day, but sometimes it shuts down every few hours and restarts repeatedly without any BSOD. I believed it was resolved when it didn't reboot for a day, but it's recurring again now. The Corsair PSU I'm using is brand new. Updated on October 16, 2025 by nitron64
My home has very old wiring, around 18 to 25 years old, which has been causing issues lately. The walls are starting to absorb water from the ground, leading to problems. The main power has several "JUGAAD" setups, such as drawing power from another house 50 miles away because the meter is cut off due to unpaid bills, and similar complications. I didn’t realize this could cause such problems, even though my Intel system has worked well for 14 years under these conditions. My AMD system is also being used to share this information.
I used most of the components except the PSU. I purchased them because my AsRock board stopped working three times without any clear cause. The 4650g CPU was bought for $12 as a dead CPU, but it had bent pins and the seller didn’t notice. The MSI board with a 3200g was bought for $68, which turned out to be a good deal. I didn’t expect it to cause such trouble.
Even when power comes from another house without grounding, installing a ground is straightforward. Locate a metal rod or similar material, bury it outside, and attach a ground wire to it. Extend the wire where you require grounding, connecting it through the socket to the ground. If needed, replace the socket with a properly grounded one. This method is simple and likely the most affordable option.
Here’s a revised version of your message:
"My plan for today seems to not address my PC issues, as it keeps restarting unexpectedly even outside the case."
SMALL UPDATE: I haven't attempted to boot the PC outside the case yet. The grounding in my house appears fine. I suspect the UPS is defective because it shocks me when connected to the mains, but not when linked to my UPS. Luckily, the UPS is only a few months old and still under warranty. I’ll send it for RMA, though they probably won’t say anything is wrong and might just return it or fix it before sending.