So, I recently suffered from a BSOD while playing AC4 : alt-tabbing while the game was loading something caused the screen to freeze, then BSOD (driver_power_state_failure to be precise). Looked like a regular software problem to me but Who Crashed tells me it’s likely to be a hardware problem.
Upon looking in the events viewer, I notice that its likely to be linked to a Kernel Power 41 (63) error that happened at the same time. In fact there has been 7 similar errors in the past month. Which is weird because I’m sure I never had 7 BSOD.
From what I understand, a Kernel Power Error means something fucked up between windows, the hardware and its power supply, right ? So the PSU is an usual suspect. Thing is, it happened both while plugged and unplugged, so it’s quite strange here. HDD, SSD and RAM seem to be okay as well. And the error happened at different locations so it’s not a local power supply problem either. Given the date and time when the errors happened I’d say those Kernel Power 41 error happened both while shutting down the computer and booting it, and also possibly while it was in sleep mode.
Upon further investigation, it appears that 4 of the 7 errors are due to a forced shutdown (basically me holding down the power button) caused by the user, so they’re not problematic. But the 3 others ? Only two of them caused a BSOD, but they’re quite mysterious to me. Asus tech support tells me it’s common on their laptop and probably has something to do with the “fast start” mode in windows (I just disabled it). Coincidentally the errors happened right after I upgraded to windows 10, version 1709 (from 1607) and started to suffer problems where the computer wouldn’t wake from sleep.
(Also I should note that I undervolted the CPU, but errors started prior to this).
Any ideas ?