maybe i should explain the cpu crack issue and how it will manifest
take the cpu , case temp 45c , just idle running the os
if the cpu has 4 cores , only one active the core is producing the heat to package , the os load balances so switches cores from time to time , in an attempt to stop the chip overheating at one point on its surface (trying to keep the temp even across the silicone)
the change on a good none cracked chip is evenly balanced , keeping most of the chip within a sort of equal temp range and random to stop the chance of any flexing causing the chip to creep away from its package bonding
but when the chip is cracked the temp change path has to go around the crack
the crack itself maybe in just one core , but switching thread from one to another say between cores 1 and 3 may cause a connection over the crack to break in core 2 while the “temp ripple” passes and connect again after it passes around the crack , a bit like fluid ripples would around an obsticle , so switching cores to try and stop “thermal ripples”
so since the hop from thread to thread is not always 1 2 3 4 1 2 3 4 the sequence changes , even though the package temp appears to remain constant , so if thread 2 is still active while the switch happens then the system will blue screen , added to that the connection may only affect part of the chips function , like only while the core with the crack is performing a certain instruction and the temp ripple is affecting that connection ,
so the crash appears to be random and without cause
if left , the issue will just get worse as the crack grows
although with a lot of work you maybe able to pinpoint the exact part of the chip thats causing the issue but you wont just be able to disable that core , or it will upset the load balancing making the disabled part of the chip colder than the others ,that in turn will accellarate the cracking
the cooler is not the issue as you would see a temp difference or hear it change speed to cope