theveterans
Member
55C is a normal operating temp for the SP3, it will kick thermal throttling at 90C until it is below 80C. Have you applied all of the Firmware Updates? Also if Chrome (especially older versions) is installed on the device it is running background processes.
How did you increase throttling temps to 90 Celsius? Is it undervolting with IntelXTU? Mine throttles to 1.7-1.9 GHz at 65 degrees but at least I don't have a ridiculously hot bottom plate.
55 Celsius operating temp is pretty high IMO. Mine is only 50 or below even when playing mp3s on background. FYI, fans are not even ON at this moment!