What's the normal temp for a MBP?

Hydraulix

Hydraulix

Registered
Right now I have both cores pegged at 100% and it's looking around 83C-79C on both of them. When the system is sitting idle the temp is around 41C-45C. Is this normal? 83C is pretty fscking hot! Also, here's a quick script that I used to max out the cpu if you want to try it out.




Code: 
#!/bin/bash
#Encryption speed test for maxing out the cpu load.
while true; do openssl speed; done
 
I'd say 83C under full load is too hot, although that kind of peak temp seems to be the norm for MBPs, currently.
If I'm not mistaken, pre MBP laptops have an absolute max temp of around 74C at which point the computer will automatically shut down.PB
I've just used your script to run my Powerbook at 100% CPU, and at an ambient room temp of 20C my PB's processor reached 59.5C, at which point the left fan activated bringing the processor temp back down to 55C, when the fan then deactivated. When maintaining a continuous 100% CPU, my PB's processor stayed within the 55.9C-55C range, fan always cutting in at 59.5C and cutting out at 55C. At idle, my PB is currently maintaining a processor temp of 40.3C.
In the past, I've noticed when my PB was doing something processor intensive for an extended period in an ambient temp environment of around 30C (during a hot summer), my PB's temp would stay in the low 60s, with the left fan constantly running. My PB's right fan, which, I believe, is supposed to activate only if the processor reaches a critical temp (74C?), has never, yet, cut in, but then the internal PB temp has never gotten anywhere near that high.
I have to mention, here, that I ALWAYS run my PB on a raised cooling platform (Podium Cool Pad: http://roadtools.com/), and during hot weather, have an electric fan blowing air on both me and my PB.
I would think that MBPs regularly reaching temps of 83C would eventually have problems due to the excessive heat. It just can't be healthy for the MBP's guts.
I hope Apple finds a way to enable MBPs to run cooler. I eventually want to get one, but not before the heat issue is resolved.
 
I think it's just like that. There's not much Apple can do here. These processors _do_ get hotter than G4s. One thing I _do_ wonder is: Can't we have a utility or option that let's us throttle the processor? For example: I'd like to be able to disable one core completely and have the other run at only 1 GHz when I'm writing. I'm sure that'd keep both the temperature down and save some battery life. And if I'm only typing in TextEdit, I'm _pretty_ sure I don't need two cores running at 1.33, 1.5 or 1.67 GHz!
 
fryke said:
I think it's just like that. There's not much Apple can do here. These processors _do_ get hotter than G4s. One thing I _do_ wonder is: Can't we have a utility or option that let's us throttle the processor? For example: I'd like to be able to disable one core completely and have the other run at only 1 GHz when I'm writing. I'm sure that'd keep both the temperature down and save some battery life. And if I'm only typing in TextEdit, I'm _pretty_ sure I don't need two cores running at 1.33, 1.5 or 1.67 GHz!
Click to expand...


If you install the developer tools. There's an option to install CHUD. After you install CHUD go into the system preferences and you will see processor. Click that and you can set the option to turn off a core. I'm still looking around for a tool to automatically downclock the processor and/or turn off a core. Kind of like powernowd for linux. I feel that would take care of a lot of the heat issue everyone has been having.
 
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