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You are here: MacNN Forums > Hardware - Troubleshooting and Discussion > Mac Notebooks > Post your MBP C2D temp here

Post your MBP C2D temp here
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gix
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Nov 14, 2006, 11:17 PM
 
mine is 2.16 C2D

room temp is around 74F, mbp is sitting on a desk w/o external cooling device. Each test was about 15 mins.

1st: (couple of Safari with iTune and msn):

Core1: 55C
Core2: 54C
Fan 1: 2200rpm(i think it is still very quiet)
Fan 2: 2200rpm

2nd: (iDVD, iTune, DVD, couple of safari with MSN):

Core1: 61C
Core2: 60C
Fan 1: 3000rpm (i can hear the fan, not super noisy, but kinda)
Fan 2: 3000rpm

I am not sure if this is considered to be "cool", so how about yours?
     
gix  (op)
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Nov 14, 2006, 11:26 PM
 
sry...i made mistakes, for the 1st load, it was only 51C and 52C for both Cores.
     
brokenjago
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Nov 15, 2006, 03:54 AM
 
I would say that this is very cool.
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osiris
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Nov 15, 2006, 10:15 AM
 
Under full load with both CPUs pinned at 100%:
Core 1 79.0 C
Core 2 77.0 C
Fan 1 5200 rpm
Fan 2 5200 rpm

Normal internet/mail/itunes usage:
Core 1 50.0 C
Core 2 50.0 C
Fan 1 3000 rpm
Fan 2 3000 rpm

This is a 2.33 ghz 2gb ram 120gb HD that still (IMO) gets too hot to use as a LAPTOP.
"Faster, faster! 'Till the thrill of speed overcomes the fear of death." - HST
     
Simon
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Nov 15, 2006, 10:47 AM
 
Room temp (20C/68F), on flat table, 2.33 GHz 15" with 120 GB disk:

idle: fans at 2000 rpm, smcFanControl temp reading at 42C/108F
max load: fans at 6000 rpm, smcFanControl temp reading < 80C/176F

Palm rests are comfortable. Bottom is warm, but not too hot. Perfectly usable as a laptop IMHO.
( Last edited by Simon; Nov 15, 2006 at 12:10 PM. Reason: spelling)
     
phazedowt
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Nov 15, 2006, 11:01 AM
 
1. "Idle" use (email, web, listening to music): anywhere between 40-50C (depends more on what surface its sitting on), fans @2000 rpm
2. Heavy load (right now-- both Cores busy doing particle physics simulation): tops out at 75C, fans @6000 rpm. Even under heavy load, temp drops rapidly (to below 70) as soon as fans kick into high gear.

Whisper quiet during 1, jet-engine during 2. Just as Simon said, palm rests never become hot, and bottom is never too hot to use as a *lap*top.
15" MBP, 2.33 GHz C2D, 120GB HD, 2 GB RAM, OS X 10.4. 4GB iPod Nano.
     
quattrokid73
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Nov 15, 2006, 11:14 AM
 
how the heck are u guys getting these numbers? i have no clue how to get my temps on my rev a...
MBP 2.4, 2gb, 8600GT, 120gb 7200rpm; white iPhone 3G

     
phazedowt
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Nov 15, 2006, 11:23 AM
 
Originally Posted by quattrokid73 View Post
how the heck are u guys getting these numbers? i have no clue how to get my temps on my rev a...
smcFanControl (http://www.macupdate.com/info.php/id/23049) will show you both a temperature (as reported from the cpu) and fan speed, and let you set the minimum fan speed to a value higher than Apple's stock setting.
15" MBP, 2.33 GHz C2D, 120GB HD, 2 GB RAM, OS X 10.4. 4GB iPod Nano.
     
quattrokid73
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Nov 15, 2006, 01:43 PM
 
so there is nothing that will read the temp that comes with it?
MBP 2.4, 2gb, 8600GT, 120gb 7200rpm; white iPhone 3G

     
gix  (op)
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Nov 15, 2006, 03:57 PM
 
Originally Posted by quattrokid73 View Post
so there is nothing that will read the temp that comes with it?
Yes, the smcfancontrol allows you to adjust the fan speed and it also reads the temp, but for the details, such as the cores, hdds, ram, go download this temperature monitor.
Temperature Monitor 4.0 - VersionTracker:
     
gix  (op)
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Nov 15, 2006, 04:05 PM
 
Originally Posted by phazedowt View Post
1. "Idle" use (email, web, listening to music): anywhere between 40-50C (depends more on what surface its sitting on), fans @2000 rpm
2. Heavy load (right now-- both Cores busy doing particle physics simulation): tops out at 75C, fans @6000 rpm. Even under heavy load, temp drops rapidly (to below 70) as soon as fans kick into high gear.

Whisper quiet during 1, jet-engine during 2. Just as Simon said, palm rests never become hot, and bottom is never too hot to use as a *lap*top.

but for a mbp core duo, both your config got pretty cool temp, isnt it? i have heard that c2d is much cooler than cd, but from your reports, i do not see it at all, because even mine at min load, it still stay around 50C (web + itune).
     
phazedowt
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Nov 15, 2006, 08:05 PM
 
Originally Posted by gix View Post
but for a mbp core duo, both your config got pretty cool temp, isnt it? i have heard that c2d is much cooler than cd, but from your reports, i do not see it at all, because even mine at min load, it still stay around 50C (web + itune).
I'm not sure what you're comparing to. In my experience, in everyday use, my C2D MBP is cooler than my 3+ year old G4 PB.
15" MBP, 2.33 GHz C2D, 120GB HD, 2 GB RAM, OS X 10.4. 4GB iPod Nano.
     
brother337
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Nov 16, 2006, 03:13 AM
 
My MBP C2D hovers around 49-51 C at idle and went up to 63 C while I was encoding an H.264 video. Fans topped off at around 5200rpm.
15" MacBook Pro Core2Duo 2.33
160gig PMR HD / 2 GB RAM
     
johnnie518
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Nov 16, 2006, 03:37 AM
 
So far from what I'm seeing... C2D and CoreDuo are getting about the same temps. With SMC-FC, I get mid 40Cs with 3000-3500rpm fans with moderate use (iTuenes, Adium, Mail, Word, Powerpoint, sometimes Azureus). I assume since Apple finally turned on the fans on the C2D automatically compared to CoreDuo fans always running at 1000rpm, thats why C2Ds are labeled cooler.

Might I add,

Thank you H. Holtmann for making smcFanControl for revA and B users!

This is all from my speculation. Correct me if I'm wrong.
     
bernt
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Nov 16, 2006, 05:53 AM
 
Just as johnnie518 is saying, seems like cooler C2D's is caused by the fan min speed has been raised from 1000 rpm to 2000 rpm. Anyone that can confirm this?
PowerBook 15" 1.25G/1G/80G | iMac G5 17" 1.6G/1.5G/300G | MacBook Pro 15" CD2.0G/1.5G/120G | MacBook C2D 2.2G/4G/160G
     
Simon
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Nov 16, 2006, 09:20 AM
 
Originally Posted by bernt View Post
Just as johnnie518 is saying, seems like cooler C2D's is caused by the fan min speed has been raised from 1000 rpm to 2000 rpm. Anyone that can confirm this?
That certainly helps, but it's not that alone. I used smcFanControl to set my rev A MBP to 2000 rpm min fan speed and it still idles roughly 15C higher than the rev B.
     
bernt
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Nov 16, 2006, 09:30 AM
 
I've seen many MBP CD's (after week 25-26) that had idle temps not far from what you are seeing with your C2D, Simon. I think some of it might be due to better application of thermal paste than the first revisions, and the fact that the MLB's in later revisions have been changed (as the need for new install dvd would prove).

My 2.0 CD idle'ed at 60-65C before I found smcFanControl. After that I've used it so set the fans to 3000 rpms which give me idle temps in the low 40C range. Currently, the comp is in for MLB replacement due to the whine, so hopefully the new revised MLB (and proper applications of thermal paste) will further reduce my idle temps.
PowerBook 15" 1.25G/1G/80G | iMac G5 17" 1.6G/1.5G/300G | MacBook Pro 15" CD2.0G/1.5G/120G | MacBook C2D 2.2G/4G/160G
     
osiris
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Nov 16, 2006, 10:05 AM
 
Originally Posted by bernt View Post
Just as johnnie518 is saying, seems like cooler C2D's is caused by the fan min speed has been raised from 1000 rpm to 2000 rpm. Anyone that can confirm this?
It thought it was raised to 2500.
"Faster, faster! 'Till the thrill of speed overcomes the fear of death." - HST
     
phazedowt
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Nov 16, 2006, 10:57 AM
 
Originally Posted by osiris View Post
It thought it was raised to 2500.
2000 is what I see in my C2D machine.
15" MBP, 2.33 GHz C2D, 120GB HD, 2 GB RAM, OS X 10.4. 4GB iPod Nano.
     
osiris
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Nov 16, 2006, 11:09 AM
 
Originally Posted by phazedowt View Post
2000 is what I see in my C2D machine.
You're right, I stand corrected.
"Faster, faster! 'Till the thrill of speed overcomes the fear of death." - HST
     
markalan
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Nov 16, 2006, 02:37 PM
 
After 3 days my C2D is about 8-10 degrees cooler then my cd. Speed 2.1 versus 2.0
     
bernt
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Nov 16, 2006, 04:00 PM
 
Markalan: Just to clarify - C2D 2100 rpm, CD 2000 rpm, is that what you meant?
PowerBook 15" 1.25G/1G/80G | iMac G5 17" 1.6G/1.5G/300G | MacBook Pro 15" CD2.0G/1.5G/120G | MacBook C2D 2.2G/4G/160G
     
markalan
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Nov 16, 2006, 04:33 PM
 
Bernt, I was referring to the processor speed. The minimum speed for the C2D is 2k the CD was 1K. I would like to lower it to 1k when idle but I can not. The unit really does run cooler.
     
pete
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Nov 16, 2006, 09:53 PM
 
It doesn't really matter what the CPU temperature is. What really matters is how hot the external case gets, i.e. how well heat is removed through the back and bottom. Is anybody able to compare between rev a and rev B? what I hated about my macbook pros rev A was that they all got way too hot on top - keyboard and palmrests.
     
bernt
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Nov 17, 2006, 03:25 AM
 
My experience is that the lower the temp of the CPU, the lower the temp on the external casing. So because the C2D CPU temp is lower, so will the casing temp. But this is something you also can achieve on rev a MBPs with adjusting the fans.
PowerBook 15" 1.25G/1G/80G | iMac G5 17" 1.6G/1.5G/300G | MacBook Pro 15" CD2.0G/1.5G/120G | MacBook C2D 2.2G/4G/160G
     
zign
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Nov 17, 2006, 04:39 AM
 
It seems like my week 11 MBP is still cooler that the C2D. I idle at 40-44C without smcFanControl and at 34-37C with smcFanControl. With Photoshop, Fireworks, Illustrator, Flash, Adium, Skype, Fetch, Mail and Safari it works at around 50-60C
15.4 MBP 2.33Ghz C2D, 3Gb, 120Gb HD, 256MB X1600, 10.5.1
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Simon
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Nov 17, 2006, 04:44 AM
 
Originally Posted by pete View Post
It doesn't really matter what the CPU temperature is. What really matters is how hot the external case gets, i.e. how well heat is removed through the back and bottom. Is anybody able to compare between rev a and rev B? what I hated about my macbook pros rev A was that they all got way too hot on top - keyboard and palmrests.
I have compared my rev A to my rev B and the palm rests are considerably cooler on my 2.33 GHz rev B compared to my 2.0 GHz rev A. I actually started a thread about it a few days ago.
     
pete
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Nov 17, 2006, 11:07 AM
 
there doesn't have to be a direct correlation between the CPU heat and the outside case heat if the thermal management is done right. It sounds like they have fixed something with the newer ones and that's a great thing.
     
Simon
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Nov 17, 2006, 11:25 AM
 
Indeed.
     
phazedowt
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Nov 17, 2006, 12:06 PM
 
Originally Posted by pete View Post
there doesn't have to be a direct correlation between the CPU heat and the outside case heat if the thermal management is done right. It sounds like they have fixed something with the newer ones and that's a great thing.
I think this is getting to the real crux of the matter: the temps of 70+C I see under full load appear to be not very different from what the revA MBPs were getting. However, under such load, I have not once felt the palm rests to be any warmer than when the machine is idle. The only part of the top surface of the laptop (when open) that feels noticabley warmer is the strip inbetween the keyboard and the screen. I'm willing to bet that the changes in the rev B go beyond just firmware/fan speed changes, but also some physical changes to how the heat dissipation is done.
15" MBP, 2.33 GHz C2D, 120GB HD, 2 GB RAM, OS X 10.4. 4GB iPod Nano.
     
amanmann
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Jan 24, 2007, 11:21 PM
 
I would like to know the temps you guys are talking are with the MBP plugged on charging or not.. Coz i suppose that would make a difference too. My MBP C2D 2.16 when idle runs at 52C i.e. when plugged on ... And it is really hot at the bottom left end.... Isn't it too much ?
     
Black_Rain
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Jan 25, 2007, 11:43 AM
 
Currently:

Sitting on my lap... around 74 degrees F in this room

In Degrees Farenheit
CPU A - 122
Heatsink A - 113
GPU Heatsink - 114
Heatsink B - 100
GPU - 109
Enclosure - 93

Fans:

Fan 1 - 2000 rpm
Fan 0 - 1999 rpm

Currently using finder/dashboard/safari/imail/adium/vpn with airport

I have just been chatting and surfing the web...

I am also not charging...using only battery

Screen brightness around 5-6 clicks from the bottom...and no keyboard light
no cd in the drive, no external drives...just the machine
     
MajikalMan
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Jan 28, 2007, 12:35 AM
 
CPU A - 51
Heatsink A - 46
GPU Heatsink - 48
Heatsink B - 39
GPU - 45

Fans:

Fan 1 - 2001 rpm
Fan 0 - 1996 rpm

On battery w/ Firefox, Dashboard, Parallels, Keynote, adium, wireless on
     
   
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