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Hot 15" i5 MBP!

uzit

macrumors regular
Original poster
May 15, 2008
196
0
Hey folks

Got my MBP earlier today and I have been installing software etc for Uni but I am noticing it gets really hot! I use it on my lap mostly and I'm just doing normal web surfing, youtube watching!

Also, I notice on full charge since I got it - I got 4 hour battery life, I turned off the keyboard light and the screen light is half way ! :S

any suggestions would be fantastic ;)
 

chrmjenkins

macrumors 603
Oct 29, 2007
5,322
154
CA
"Hot" is vague. Install a temp monitoring program like iStat and post the temps. As for your battery life, it depends what you were doing in those 4 hours as well as whether or not you had let the battery calibrate yet.
 

spinnerlys

Guest
Sep 7, 2008
14,328
7
forlod bygningen
YouTube uses Flash which is CPU intensive, thus more power is needed and more heat is generated while the battery is drained more.

Either use the HTML5 beta of YouTube or ClickToFlash's ability to play YouTube videos as H264 videos via QuickTime.

MRoogle will find you dozens of dozens of threads.
 

MBHockey

macrumors 68040
Oct 4, 2003
3,953
195
New York
Yeah, some hard numbers from iStat would be nice.

What computer did you upgrade from (and that you're comparing its 'hotness' to?)
 

chuckm1020

macrumors regular
Aug 27, 2009
149
28
Yes i would love to see some numbers also. i have noticed this new i7 i have has been running much cooler than the 2.8 core 2 duo i had. much cooler!! and the fans kick in around 80C instead of nearly 100C like my old one. i didnt even install smcfancontrol on this one because it runs so much cooler!!
 

boonlar

macrumors 6502
Dec 30, 2008
259
0
thats normal, the aluminum body of the laptop acts as a giant heatsink so it gets hot. the battery life is normal too since apple 8 hour claims are fake, read on the site and you will see they get 8 hours under perfect conditions doing almost nothing on the laptop with the brightness turned down.
 

lily69

macrumors regular
Apr 4, 2010
134
0
It does get hot when installing software, at normal use, it's very cool.
I show 9-11 hours after full charge. Out of the box, it has 96% battery charged.
 

Michael CM1

macrumors 603
Feb 4, 2008
5,678
273
There's a reason Apple correctly calls them notebooks and not laptops.

From Apple's support page:

http://www.apple.com/support/macbookpro/care/

"When you’re using your MacBook Pro or charging the battery, it's normal for the bottom of the case to get warm. For prolonged use, place your MacBook Pro on a flat, stable surface. Do not place your MacBook Pro on your lap or other body surface for extended periods of time. Prolonged body contact can cause discomfort and potentially a burn. The bottom of the MacBook Pro case functions as a cooling surface that transfers heat from inside the computer to the cooler air outside. The bottom of the case is raised slightly to allow airflow, which keeps the unit within normal operating temperatures. In addition, warm air is vented from the slots in the back of the case."


If you need to use it on your lap, there are $20 cushioning devices that will protect you and the computer. Otherwise, put it on a desk like Apple says. As far as I know, the iPad is the only Apple device that you can put directly on your lap if you wanted to safely. I don't know if you can do it with the MacBook Air.
 

cmanbrazil

macrumors regular
Feb 3, 2010
189
34
Make sure you let the battery run out, and not go by the status bar, because the battery left time on my status bar often goes up. Maybe this is part of the calibration process? Its been four years since my last laptop and I don't remember the first few days.

Loving it though. I put a nice satin hard cover on it, and it helps with the heat, and I actually like it better.
 

MBHockey

macrumors 68040
Oct 4, 2003
3,953
195
New York
There's a reason Apple correctly calls them notebooks and not laptops.

From Apple's support page:

http://www.apple.com/support/macbookpro/care/

"When you’re using your MacBook Pro or charging the battery, it's normal for the bottom of the case to get warm. For prolonged use, place your MacBook Pro on a flat, stable surface. Do not place your MacBook Pro on your lap or other body surface for extended periods of time. Prolonged body contact can cause discomfort and potentially a burn. The bottom of the MacBook Pro case functions as a cooling surface that transfers heat from inside the computer to the cooler air outside. The bottom of the case is raised slightly to allow airflow, which keeps the unit within normal operating temperatures. In addition, warm air is vented from the slots in the back of the case."


If you need to use it on your lap, there are $20 cushioning devices that will protect you and the computer. Otherwise, put it on a desk like Apple says. As far as I know, the iPad is the only Apple device that you can put directly on your lap if you wanted to safely. I don't know if you can do it with the MacBook Air.

I can use my 13" MacBook on my lap, no problem. I wouldn't watch a 30 minute youtube video or mp4 video with it on my lap, but email/internet on my lap is a non issue. The bottom enclosure during those tasks is a cool 77 degrees F according to iStat. Sounds kind of warm, but it's cool to the touch.

I'm curious how warm the new core i5 and i7 MBPs get with light usage.
 

Dark Goob

macrumors regular
Jun 6, 2007
182
32
Portland, OR
the iPad is the only Apple device that you can put directly on your lap if you wanted to safely.

this is kinda wrong. Ipad = win. But...

I put my iphone in my lap too :) sometimes both!

also If you put a mac pro there, You wont get burnt... Maybe just crushed tho... I had to do this waiting for genius bar one time, both my legs went asleep then i almost fell down when they called my name & tried to walk over there...
 

mistaOneTwo

macrumors newbie
Aug 13, 2010
1
0
got my new mbp i5 yesterday and its stays pretty cool normally until I do anything cpu intensive like using Flash. Then it gets so hot underneath you could definitely burn yourself. Gonna install some fan control software as I'd rather have a cooler system than a quiet one. Absolutely love using it though :D
 

tonywang.xmpt

macrumors member
Jul 26, 2010
78
0
US
YouTube uses Flash which is CPU intensive, thus more power is needed and more heat is generated while the battery is drained more.

Either use the HTML5 beta of YouTube or ClickToFlash's ability to play YouTube videos as H264 videos via QuickTime.

MRoogle will find you dozens of dozens of threads.

yepp whenever I start watching any online video
that contains any form of "flash"
(including; youtube, megavideo, vizeo, divx, ect.)
my cpu temperature will spike to 60C - 80C.
My fan will then start to rise up to 3000rpm - 4000rpm.

Now I know why Steve Job hates flash so much.
I hate it too :3
(Imagine my iphone spiking in temp...)
 
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