Is 91 degrees Celsius a safe continuous temperature for the 2.5 GHz Core i7-2860QM CPU in my late 2011 Macbook Pro 17"? Will that continuous temperature reduce the life span of the CPU or logic board components?
I would like to run SETI@Home / BOINC on my laptop for many hours at a time, and for many days in a row when the laptop isn't being used. BOINC by default uses 100% of the CPU in order to crunch science data. I can adjust the settings to cause BOINC to use less of the CPU, but I'm trying to not be over-reactive to temperature readings that may be perfectly safe, even for extended periods of time, and on a regular basis. Please note, the 91 degree temperature is with an external notebook cooling fan assisting in the cooling. The unassisted temperature would be much higher.
I've also included the temperature readings from iStat Pro temperature monitoring application to diversify the data. Please note, the data listed in the categories "CPU A Temperature Diode" from "Hardware Monitor" and "CPU" from "iStat Pro" seems to be identical. The application "Temperature Monitor" gave me the same readings as "Hardware Monitor," and so is not listed.
Temperatures with CPU at 100% Usage:
CPU A Temperature Diode : 91 degrees Celsius
CPU A Proximity : 81 degrees Celsius
CPU : 91 degrees Celsius
CPU Heatsink : 54 degrees Celsius
Temperatures with CPU at 20% Usage:
CPU A Temperature Diode : 71 degrees Celsius
CPU A Proximity : 67 degrees Celsius
CPU : 71 degrees Celsius
CPU Heatsink : 52 degrees Celsius
(Note: The BOINC application is likely also utilizing the computers Graphics Processing Unit, and adding to the CPU temperature readout as a result since both processing units are supposedly using the same heat pipes to stay cool).
Any comments, suggestions, or questions to help produce an answer are welcome and much appreciated!