![]() ![]() Now, being a bit conservative about such things I wouldn't be happy either if my CPU was hitting the 95✬ to 105✬ range regularly, but the manufacturers of these CPUs, Intel, reckon this is the area where we should start to get worried, and have therefore introduced their own "throttles" on CPU speed, and ultimately cut offs to prevent damage, at around those points. ![]() The fans tend to kick in somewhere in between these temps, and the maximum temperature they are capable of handling before the CPU itself does just what the "Coolbook" software claims to do (throttling back the CPU speed etc) varies between about 95✬ and 105✬. MBPs regularly operate in that 60º to 70º C range that you mention if they are under a bit of stress. But their fans cut in earlier and, as long as they were working properly, CPU temps were very rarely any sort of real issue with them. IMac G5s, for example, had CPUs that would get to 65✬ far faster than an Intel MBP does, and had a maximum rated temp of only about 85✬. Kevin, the temps that really matter with CPUs depend on the particular one fitted to your computer, and when you should worry about them depends on the efficiency of control of the cooling system.
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