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Mac Book Pro CPU reaches 200 F

R

Ravernomina

macrumors member
Original poster
Nov 15, 2009
43
0
Hello all. When i was playing Runescape and running Itunes and 2 IM clients, I saw my CPU reach up to 200 F I freaked out because i dnt want the CPU to get damaged. So i used smcFanControl, to blast it down to 140.... Is this normal for it to reach 200 F and the fan not speeding up? Thanks!
Ravernomina

MacBook Pro 5,4
 
Eidorian said:
Extremely normal for the unibody hardware. I'm amazed that it's still a surprise.
Click to expand...

Well i just moved from a PC... god fed up with LINUX/Windows... And in the Field as a UNIX I.T.... 200 is Bad haha.... so this is all just normal then?
 
Ravernomina said:
Well i just moved from a PC... god fed up with LINUX/Windows... And in the Field as a UNIX I.T.... 200 is Bad haha.... so this is all just normal then?
Click to expand...

Yes. The maximum thermal range of Intel's CPUs generally ranges from 100ºC (212ºF) to 105ºC (221ºF). Thats not to say you won't hear lots of hoopla about temperatures on forums, but as far as Intel is concerned 200ºF is perfectly normal.

Source: Intel Processor Specs
 
Ravernomina said:
Well i just moved from a PC... god fed up with LINUX/Windows... And in the Field as a UNIX I.T.... 200 is Bad haha.... so this is all just normal then?
Click to expand...

200F would be bad for desktop components, but laptop components are designed to take it.

200F=93C. That's a bit high, but not unusual for a Unibody MBP. It wouldn't hurt to run SMCFanControl since high temperatures will degrade the life of other components, like the battery and maybe the capacitors, depending on the type. I wouldn't worry about the CPU itself, though.
 
check out this thread https://forums.macrumors.com/threads/853187/

don't worry, you can't damage the CPU, it's completely fail safe, it will down-clock at 105 C and shut down completely at around 130 to save itself.

200 F = 93 C sounds perfectly normal, my MBP 13 Unibody peaks at 103 C and then drops back to around 90 C, almost the same as yours.

I posted on the thread above on the fan control algorithm - it seems carefully designed to let the CPU meet, but not exceed, the 105 C spec limit. Then it drops it down to the 90's if the load continues.

I posted a link at the thread above to the Core2Duo thermal management document, it gives a lot of useful info.

Sorry my numbers are all in C not F!
 
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