I'm running Windows and recently replaced my GTX 660 Ti with a GTX 1650. Before the upgrade, the computer worked normally, but afterward it began crashing during graphics-heavy use. Reseating the new card seemed to help briefly, but the crashes continued and sometimes happened during startup or while the PC was idle. I used DDU twice to remove and reinstall the graphics drivers, and I also tested the older GTX 660 Ti again, but the crashes still occur. The power supply is an ATNG ATM 400FB. Event Viewer shows Event ID 41 whenever the computer crashes. What should I check next?
1 Answer
Event ID 41, or Kernel-Power, usually only means Windows detected that the previous shutdown was unexpected. It doesn’t identify the actual cause. Since the crashes continued with both graphics cards, start by checking the power supply, motherboard power connections, RAM, temperatures, and whether the GPU is fully seated. The ATNG 400 W unit is also worth treating as a suspect, especially if it is old or low quality. Check for overheating, run a memory test, and look for more specific errors immediately before Event 41 in Event Viewer. If possible, test with a known-good power supply.
A 400 W supply can be enough for a GTX 1650 on paper, but its condition and build quality matter more than the wattage label. Also check that Windows isn’t automatically reinstalling a problematic driver after DDU, and test the system with the side panel open while monitoring CPU and GPU temperatures.