Have my new MBP, Holy Crap these are HOT

[maxterpiece]

the last few generations of powerbooks got uncomfortably hot. I think it's a reality for any new laptop with a decent chip in it though . I actually switched from a 1.5 ghz 15" powerbook to 12" iBook mostly just because i couldn't stand the heat of the powerbook.

 

[devilot]

the last few generations of powerbooks got uncomfortably hot... I actually switched from a 1.5 ghz 15" powerbook to 12" iBook mostly just because i couldn't stand the heat of the powerbook.

I agree. I miss the sleek compact form of my 12"PB but my 12" iBook runs soooo much cooler. I won't get a PB (or whatever Intel form it may take) unless it actually gets decent wifi reception and runs cooler than my iBook.

 

[psycho-]

Okay...after last night (first time using the MBP after owning a Rev A PB Aluminum, I have come to the conclusion that the MBP is definitely warmer.


Pictures taken from the teardown:

http://www.ifixit.com/Guide/85.1.0.html

If you look at the logic board here:
http://www.ifixit.com/Guide/85/images_large/44.jpg

You can notice that the CPU grease is pushed against here:
http://www.ifixit.com/Guide/85/images_large/46.jpg

Basically, the heatsink is so close to the case (and mounted to the case directly) that your lap becomes part of the heatsink! It's scary.

THe laptop is "hot" in both a good and a bad way. Oh well, I still like it!

 

[godbout]

Yeah the space key makes a different noise than the rest of them.... I like it that way

 

[meinertzhagen]

I don't know...i am actually excited that my macbook doubles as an egg fryer...now i don't have to worry about picking up one of those. apple thinks of everything...i don't even have to pay for heat anymore....this thing is going to save me heaps!

 

[Temujin]

By the way, do the last rev. 15" PB have a safety feature, if the thing get's way to hot? Like shut down or make a noise.

And what about the MBP?

 

[psycho-]

By the way, do the last rev. 15" PB have a safety feature, if the thing get's way to hot? Like shut down or make a noise.

And what about the MBP?

I think most CPUs, built onto the die, and Mobos / logic boards have had temperature regulation for at least 6-7 years running that prevent itself from cooking itself.

If it's intel, for sure it has it....the system should be smart enough to clock back and "limp" if it gets too hot.

 

[excalibur313]

I had a rev A 15" aluminum powerbook and after watching DIVX or doing something intensive for a while it got so hot that it was far too hot to have on my lap. I seem to remember the temperature monitor was about 55C.

 

[excalibur313]

I think most CPUs, built onto the die, and Mobos / logic boards have had temperature regulation for at least 6-7 years running that prevent itself from cooking itself.

If it's intel, for sure it has it....the system should be smart enough to clock back and "limp" if it gets too hot.

I know for example the AMD 64 I had would run about 65C. Processors will shut down at about 80C (as a safety feature) and they literally melt at 90C-95C. The pentium 4s ran about 75C so this is a huge improvement.

 

[Laser47]

By the way, do the last rev. 15" PB have a safety feature, if the thing get's way to hot? Like shut down or make a noise.

And what about the MBP?

Apple has had that safety feature for a long time. Almost all processors now have built in thermal protection on the chip which either shuts the cpu off or throttles the speed Intel has had it build into their CPU's since the PIII. AMD however did not include this protection in any of their Socket 462 CPU's.
There is actually a very good video on Toms Hardware Guide Here

 

[spencecb]

Apple has had that safety feature for a long time. Almost all processors now have built in thermal protection on the chip which either shuts the cpu off or throttles the speed Intel has had it build into their CPU's since the PIII. AMD however did not include this protection in any of their Socket 462 CPU's.
There is actually a very good video on Toms Hardware Guide Here

Oh wow! I just watched that video. Reminds me of a time that my friends and I were haaving a LAN party. One of my friends brought over a B&W G3 and we had the door panel open, and someone spilt Mountain Dew in it. The logic board burst into flames. It was a sad way for that computer to die. It had a lot of life left in it.

 

[Sdashiki]

Oh wow! I just watched that video. Reminds me of a time that my friends and I were haaving a LAN party. One of my friends brought over a B&W G3 and we had the door panel open, and someone spilt Mountain Dew in it. The logic board burst into flames. It was a sad way for that computer to die. It had a lot of life left in it.

why did he spit mountain dew?

but honestly, that gave me a serious chuckle, imagining that.

 

[rye9]

Wow, some HOT temps here. My iBook stays around 40-42 C or about 100-110 F.

 

[Sdashiki]

upgrading my XBOX the other day, I noticed the CPU temp of 40°F.

and in the other room, my G5 CPUs were 140°.

had to laugh that "we've come so far" with technology, only to add to the entropy of the universe.

 

[blueflame]

you made me think

upgrading my XBOX the other day, I noticed the CPU temp of 40°F.

and in the other room, my G5 CPUs were 140°.

had to laugh that "we've come so far" with technology, only to add to the entropy of the universe.

this quote about entropy, really made me think, is heat a source of power? is it possible to reconvert the heat that a processor creates into energy? even small amounts?
andreas

 

[512ke]

I'll tell you what's recapturing the heat energy, man. Yourself... if you've got the laptop resting on your body. Bad idea. You do want a lotta heat radiation in your lap.

(There's a lawsuit against Apple for hearing loss via the iPod. I'm waiting for a lawsuit against Apple for other kinds of loss due to laptops...)

 

[AJBMatrix]

I do have to say this. It is still a lot cooler than my old Dell P4 HT. That thing doubled as a space heater and it even burned me once. Got up to 170 on normal use and even higher than 200 at times.

 

[spencecb]

I'll tell you what's recapturing the heat energy, man. Yourself... if you've got the laptop resting on your body. Bad idea. You do want a lotta heat radiation in your lap.

(There's a lawsuit against Apple for hearing loss via the iPod. I'm waiting for a lawsuit against Apple for other kinds of loss due to laptops...)

This, to me, is as stupid as the lawsuit years back against McDonalds because of their coffee. I know they kept their coffee at extremely high temperatures (which they have sense amended). But does it really take a genius to have the common sense to turn down the volume of the iPod?

I don't think Apple should have to lower the dB level of the output of the iPod, because what will happen when you want to play the iPod through an external source, not only through the headphones?

Sorry that is off topic, just a little rant.

 

[ncook06]

Keep in mind that aluminum makes a great heat sink. I do a lot with bass amps, and the high powered ones are usually encased in aluminum. I'm sure Apple had that in mind when the switched to aluminum cases for the professional line of notebooks.

 

[Stridder44]

Hmm I just realized that I can't seem to get the system temperature of my iMac G4...

 

[diehldun]

While typing on my PB, it would get so hot that I'd start sweating. Soon, I began noticing tiny black dots appearing at the palm rest areas. Apparently, the aluminum finishing started peeling.

I quickly got an iCurve and a BT keyboard, and that seems to have (for now) stopped the spreading.

It is just unbelievable how how it gets... but for me, it's like having an in-room heater!

 

[After G]

this quote about entropy, really made me think, is heat a source of power? is it possible to reconvert the heat that a processor creates into energy? even small amounts?
andreas

It's possible, but with the probable size of the conversion system (small), and the temperature difference between the processor and ambient conditions (again, small), it wouldn't be efficient enough to justify the cost of making such a system.