Hey all, this is my second thread. I wanted to split the two issues I have into separate threads to make it easier. So, I've upgraded the original W3565 because I've not been able to use VMware Fusion with it to a W6390 that I got from eBay, this was advertised as a tested and fully working unit. I immediately installed VMware Fusion 11 at the latest update and started playing around with a VM and let my Mac go to sleep a few times and I woke it up to find that it crashed with a KP twice, both times, this seemed to happen at time of idleness of the system. In both occasions, the crashes mentioned the AppleIntelCPUPowerManagement.kext extension but I read online that this sometimes shows up even if another extension causes it. This raised my suspicion that perhaps Fusion is responsible for it. The question is, should I try the NullCPUPowerManagement.kext? I believe that is for Hackintoshes, and considering that my CPU is supported, I think power management should work fine, right? Whilst troubleshooting, I decided to stress test the CPU with the yes > /dev/null command, I found that the temperature reading reached way over 90 degrees in the PCECI reading, at some point it hit 95 degrees and then the Mac rebooted, this time, no KP message. I was kind of shocked because the Mac internal fans didn't engage so then I downloaded Mac Fans Control and manually set the BOOSTA fan at high speed, keeping the CPU cool and in fact, been able to run the stress test for a few hours without a crash. This makes me think that hopefully those two issues are unrelated, one is hopefully caused by VMware and the other, by overheating. But the question is, why wouldn't the fans engage? Is Mac relying on a temperature reading from a different sensor (the diode or heatsink)? Those two were much lower at the time of the crash at around 80 as far as I remember so perhaps I've installed the thermal paste wrong? Could you advise me what would be an acceptable difference between the PCECI and Diode and Heatsink readings so I can determine if I should apply the paste again? Thanks guys!!!