|I recently replaced the cpu heatsink, and now the bios seems to be massively overestimating the temperature of the CPU, and shutting down after 10-15 seconds. Going straight into the bios config on startup, it reads the CPU as running at 90 degrees C, after only 5-10 seconds of operation in a 23 degree C room. This reading rapidly climbs to 110 degrees C, at which point it shuts down. Nothing like that amount of heat can be felt coming off the chip, though, so I can't really understand where this reading is coming from.|
I followed the Arctic Silver guide to thermal paste application, cleaned off all the old gunk with isopropyl alcohol, cleaned out most of the dust from both the case and the motherboard itself - this system should be running cooler now than it has in years.
I should note that, faulty heat reading aside, everything else seems to work fine - fans spin up, bios happily beeps that POST is fine, even windows will load, if I get sufficient time before a temperature shutdown.
I've tried replacing the battery, playing with the bios configuration jumper, booting from the bios on a USB drive - nothing gives me more that 10-15 seconds of runtime, which makes it very hard to alter any settings. If anyone has any suggestions, I'd be embarrassingly grateful.