MacBook Temperatures

elppa

macrumors 68040
Original poster
Nov 26, 2003
3,230
108
I downloaded the CoreDueTemp App and find my temperature is around 150 - 162ºF.

The Information on the Apple Batteries page says "Your Apple notebook works best from 50° to 95°F".

Is this relevant for the MacBooks?

Do I have a very hot computer... or is this normal?

By the way - I have 3 applications open - Dashboard, Mail and Safari. The computer is in "Better Battery Life" mode. Currently I can only get 1 - 1:30 of battery life - although it used to manage 3-4 hours comfortably.

If it is very hot and the fans are running all the time - will this be having an adverse affect on my battery life too?

The room I'm in it's about 18ºc (64ºF) - maybe a bit less.
 

tekmoe

macrumors 68000
Feb 12, 2005
1,551
22
that is NUTS! i can't believe why it would run so hot?! my new mbp is hovering around the 45c/115f mark and i have itunes playing whle surfing the net. wtf?!
 
Comment

Willis

macrumors 68020
Apr 23, 2006
2,259
4
Beds, UK
that isnt normal..

I'd go to an Apple store asap.

EDIT.

I just checked my PB's temp. CPU is at 61°C (141°F)

Those temps you're getting are similar to my G5 when its underload
 
Comment

elppa

macrumors 68040
Original poster
Nov 26, 2003
3,230
108
If that scale is for the G4 based laptops (which I'm sure ran cooler anyway) then I'm not too worried.

What I am worried about now is that my battery shows 50% full - yet only 0:44 minutes remaining on the clock.
 
Comment

wako

macrumors 65816
Jun 6, 2005
1,404
1
I downloaded the CoreDueTemp App and find my temperature is around 150 - 162ºF.

The Information on the Apple Batteries page says "Your Apple notebook works best from 50° to 95°F".

Is this relevant for the MacBooks?

Do I have a very hot computer... or is this normal?

By the way - I have 3 applications open - Dashboard, Mail and Safari. The computer is in "Better Battery Life" mode. Currently I can only get 1 - 1:30 of battery life - although it used to manage 3-4 hours comfortably.

If it is very hot and the fans are running all the time - will this be having an adverse affect on my battery life too?

The room I'm in it's about 18ºc (64ºF) - maybe a bit less.


Please note that the BATTERY and the SYSTEM temperature is different. Your system (CPU) is recording a higher temperature, but that doesnt mean your battery is at that temperature. CoreDuoTemp is only reading temperatures from the CPU.

To specifications, Apple will only replace your MacBook if it reaches ABOVE 100ºc because that is when the system is TRUELY overheating. CoreDuo chips are able to operate properly until is reaches past 100ºc

Although, compared to mine, yours is hotter if you are simplying idling there. My MacBook idles at around 50ºc
 
Comment

MRU

Suspended
Aug 23, 2005
25,318
8,813
Other
Did the OP actually calibrate your battery within the first day or two ?
 
Comment

66217

Guest
Jan 30, 2006
1,604
0
There must be something else in these MB that some get more hot.

Mine idles at 35C, and would rarely get above 65C.
 
Comment

elppa

macrumors 68040
Original poster
Nov 26, 2003
3,230
108
Please note that the BATTERY and the SYSTEM temperature is different. Your system (CPU) is recording a higher temperature, but that doesnt mean your battery is at that temperature. CoreDuoTemp is only reading temperatures from the CPU.

To specifications, Apple will only replace your MacBook if it reaches ABOVE 100ºc because that is when the system is TRUELY overheating. CoreDuo chips are able to operate properly until is reaches past 100ºc

Although, compared to mine, yours is hotter if you are simplying idling there. My MacBook idles at around 50ºc

Thanks for clarifying that - I was getting confused between the two.

Still not happy with the battery life - so a trip to the Apple Store for me.
 
Comment

NJuul

macrumors 6502
Mar 15, 2006
492
0
Boston
Thanks for clarifying that - I was getting confused between the two.

Still not happy with the battery life - so a trip to the Apple Store for me.
Can you check what your current maximum battery capacity is?
Your battery life is obviously too short, so it's probably a defect battery.
However, since you're going to the Apple store anyway, you might as well mention how hot your 'book is.
Also, before you go, better recalibrate your battery, just to say you've done it when they ask.
 
Comment

elppa

macrumors 68040
Original poster
Nov 26, 2003
3,230
108
Can you check what your current maximum battery capacity is?
Your battery life is obviously too short, so it's probably a defect battery.
However, since you're going to the Apple store anyway, you might as well mention how hot your 'book is.
Also, before you go, better recalibrate your battery, just to say you've done it when they ask.
Current max capacity of battery is 4971mAh, from an original of 5200aAh. That's 95% of the original capacity.

Thanks for the tip about the re-calibration, I will do that tonight.
 
Comment

Grakkle

macrumors 6502a
Oct 6, 2006
624
2
Earth
I'm running itunes, safari, firefox, and garageband. My macbook temp is 16c with 20% processor usage on 2ghz.
 
Comment

wako

macrumors 65816
Jun 6, 2005
1,404
1
you should check your CPU usage... if a application for some reason is using alot of resources, that can be the most likely case of why your battery is being drained so quickly.
 
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66217

Guest
Jan 30, 2006
1,604
0
I'm running itunes, safari, firefox, and garageband. My macbook temp is 16c with 20% processor usage on 2ghz.

There must be a mistake here. It can be that low. At the temp. the case would feel cold (cold).
Or maybe you did the test just the second you turned on the MB and you had it in a room at 15 C.:rolleyes:
 
Comment

Kamikaze

macrumors member
Oct 28, 2006
92
0
Denver, Colorado
My Macbook has averaged around 122 F while lightly surfing and running video off of CNN. Tonight it ran up to 165 F but I had it on my bed, so I do not think it was getting enough air flow. However, It would not get cooler than 153 F. and the fans were running full throttle. A friend had suggested that I remove the battery and power it down. The rational being that the firmware update will sometimes cause static build-up. I have had the sensor replaced a week ago for the RSS issue amd it still ran cool after that.

I'll let you know more after I run it through the weekend.

Cheers
 
Comment

MacKarl

macrumors newbie
Oct 29, 2006
23
0
CoolBook voltage?

I use CoolBook when I'm doing processor intensive tasks. I lower the voltage to 1.0V, this is on a 1.83GHz MacBook. Great results, much cooler.
A friend of mine has a MacBook Pro 2.16GHz. His CPU is runs fine on 0.95V up to 2GHz that is one really CoolBook!
Apple must have gotten Intels very best CPUs.
If someone is using this app, what are your numbers, voltage and frequency?
http://www.coolbook.se
 
Comment

Grakkle

macrumors 6502a
Oct 6, 2006
624
2
Earth
There must be a mistake here. It can be that low. At the temp. the case would feel cold (cold).
Or maybe you did the test just the second you turned on the MB and you had it in a room at 15 C.:rolleyes:
Yeah, that doesn't sound right. Though I dispute that 16c would feel cold - the room temp was about 16c and the table didn't feel cold to me.;)

CoreDuoTemp gives wrong readings on some MacBooks. Install the newest version of smcFanControl to see your real temperature.
Tried downloading smcFanControl and it gives a temp of 51c. So that makes more sense. Anyone know how to make CoreDuoTemp read correctly?
 
Comment

expergo

macrumors regular
Nov 21, 2004
213
0
Will apple replace/repair if if it gets too hot? Or will they just leave it as long as it's "within spec"?

I have a white macbook (week 31) and a black one (week 23) I just got. At idle, using SMCfancontrol, the temp for the white one is always around ~60C while the black one is at ~50C. I can feel the black one is always cooler as well. The white one has 1.1 firmware. Would apple fix it?
 
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