After moving my desktop PC to a new house, it became nearly unusable after booting. The mouse stutters, programs take a long time to open, and the system only returns to normal after restarting it several times. The problem comes back after the next shutdown. A 3DMark stress test produces a DPC_WATCHDOG_VIOLATION (0x133) blue screen, so I'm concerned there may be an underlying hardware or power problem.
I have already reinstalled the graphics drivers, reseated the RAM and GPU, disabled non-Microsoft services and startup programs, run SFC and DISM repairs, upgraded to Windows 11, and checked the drives with CrystalDiskInfo. The system has a Threadripper 3970X, Gigabyte TRX40 Designare motherboard, 64 GB of Corsair DDR4-3002 memory, and an NVIDIA GeForce RTX 4080 Super. GPU-Z also reports a PerfCap VRel condition while the stuttering occurs. The issue began immediately after moving the computer to this house, where the electrical work may not be reliable. What should I check next?
2 Answers
A properly configured smart UPS with voltage regulation can help protect a computer from brownouts, overvoltage, surges, and outages. Connect the PC and monitor to the UPS battery-backed outlets. It may also provide software to shut the computer down safely during a prolonged outage. However, a UPS is not a substitute for repairing unsafe household wiring, so the faulty outlet should still be inspected.
Since the issue started after the move and seems related to load, don’t overlook the electrical supply. Try a different room or circuit, and use an outlet tester to check for wiring or grounding problems. Also power the PC down completely, unplug it, wait a while, and carefully reseat the internal power and data connections. If an outlet tests incorrectly, stop using it and have a qualified electrician inspect it. In this case, moving the computer to another room solved the problem, confirming that the original wall outlet was faulty.
I eventually moved the PC to another room and it has worked consistently since then. The original outlet was faulty, even though trying one other socket initially made me think power wasn’t the cause.
Thanks for the suggestion. I hadn’t considered a smart UPS before, but after finding the bad outlet, I’m planning to use one for extra protection.