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NICKST3R · NICKST3R #1 (**permalink**)

08-31-2009, 05:13 PM

I just upgraded to SL on my MBP and its running at 70C w/fans at 4000rpm using SMC. I bumped it up to 5000rpm and its at 68C. This is w/mail, firefox, and itunes running. I'm not running on battery either and its fully charged. anyone else notice this?

CrimsonRequiem · CrimsonRequiem #2 (**permalink**)

08-31-2009, 05:31 PM

Actually I'm running cooler. >_>" Usually when I have 50 tabs in firefox, safari, and itunes open it's running around 65. Now it's 60.

mdfuller · mdfuller #3 (**permalink**)

08-31-2009, 05:47 PM

About the same here. It was doing some work right after the upgrade, but it cooled of shortly after that...

soulreaver99 · soulreaver99 #4 (**permalink**)

08-31-2009, 05:58 PM

Snow Leopard is running cooler for me. Also, the new BootCamp drivers make Windows XP and Vista 64-bit run cooler as well.

NICKST3R · NICKST3R #5 (**permalink**)

08-31-2009, 06:07 PM

iAntiVirus was taking over the CPU so I disabled the enabled the app. idle at 56C now

MYmacROX · MYmacROX #6 (**permalink**)

08-31-2009, 06:40 PM

Also running cooler for me according to touch/feel. Haven't run diagnostics to confirm, but too late now cause I have no idea what temps were with Leopard anyways.

jetmech1 · jetmech1 #7 (**permalink**)

08-31-2009, 07:14 PM

My MacBook is running hotter. I can feel it on the bottom side. But I still like SL. My MacBook is quicker, that may explain why it is running hotter.

CactusVideoGuy · CactusVideoGuy #8 (**permalink**)

09-02-2009, 08:16 AM

I can't quite remember what my temps were running under Leopard, but since bumping to SL last Friday, I have only noticed one or two heat spikes, and those were when I was running intensive apps (FCE, Time Machine) and haven't noticed much else... right now iStat Pro is showing my temps as follows (not all, but two most important): CPU 47C, GPU 55C. Fans aren't spinning up right now - they're sitting around 2K rpm...

Cheers!

NMMI89 · NMMI89 #9 (**permalink**)

09-02-2009, 01:41 PM

My MBP was running really hot after I installed SL. But now it's cooler. No worries.

vivekritu · vivekritu #10 (**permalink**)

09-02-2009, 05:00 PM

My Mac Book Air is hotter and is also freezing up the video playback. I could play all MKV files earlier. Now after 5 minutes they freeze. Very weird.

MasterCoach · MasterCoach #11 (**permalink**)

09-11-2009, 02:49 PM

My 15" MacBook Pro is running hotter ever since I installed Snow Leopard. There's an area above the F3 and F4 keys that gets too hot to touch. I'm thinking that Snow Leopard is turning on some hardware components that don't need to be. Anyone have other ideas/suggestions?

leopard-user1 · leopard-user1 #12 (**permalink**)

09-11-2009, 06:48 PM

My MBP is actually cooler under SL than it was with Leopard.

DarkestRitual · DarkestRitual #13 (**permalink**)

09-11-2009, 11:52 PM

Yes... on average 4-10ºC warmer for me on my aluminum macbook 2GHz.

Marc van Eldonk · Marc van Eldonk #14 (**permalink**)

09-13-2009, 08:15 AM

Hello Mac People,

I noticed, like many of you, that a MacBook Pro is running pretty warm.
Especially when running older apps, and the processor is working on avg 80 %,
your Mac easily exceeds 70 °C.
Well, you can live with that, but I prefer to keep my Mac as cool as possible.
I do not want my MacBook Pro to end up like many older IILC's, for those that remember this Mac, where many processors got thermal cracks.

Very simple solution.
Showing more then 70 °C in your SMC Fan control, running on 5500 rpm.

Just remove the Battery when running of the Power Supply ??!!!

Yes..... thats all.

The temp will drop due to better circulation, and disabling the charging circuit, to about 40 °C

I love it.

Marc

bobtomay · bobtomay #15 (**permalink**)

09-13-2009, 08:42 AM

Another little reason the temp drops, is that when you take out the battery and run on power only, the CPU is automatically throttled back. So you're also losing at least a quarter of your processing speed by doing so.

Am not going to go look for them myself, but this was documented by several respected hardware sites a couple years ago.

This is not a recommended practice.

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NICKST3R #1 (permalink)
Member Since: Aug 06, 2009 Posts: 36 Mac Specs: 13in 2.53GHz 4GB DDR3 RAM 250GB HDD and a turbocharger	OS 10.6 - Is Snow Leopard running hot for you guys? 08-31-2009, 05:13 PM I just upgraded to SL on my MBP and its running at 70C w/fans at 4000rpm using SMC. I bumped it up to 5000rpm and its at 68C. This is w/mail, firefox, and itunes running. I'm not running on battery either and its fully charged. anyone else notice this?

CrimsonRequiem #2 (permalink)
Member Since: Jul 24, 2008 Posts: 5,438 Mac Specs: MB 2.4GHz 4GB RAM 320GB 7200RPM HDD, 8GB iPod Touch, & 2GB Nano	08-31-2009, 05:31 PM Actually I'm running cooler. >_>" Usually when I have 50 tabs in firefox, safari, and itunes open it's running around 65. Now it's 60.

soulreaver99 #4 (permalink)
Member Since: Dec 15, 2004 Posts: 98	08-31-2009, 05:58 PM Snow Leopard is running cooler for me. Also, the new BootCamp drivers make Windows XP and Vista 64-bit run cooler as well. Macbook Pro 15" 2011 \| Intel Core i7 2.2ghz Quad Core \| 8GB RAM \| 500GB HDD \| Mac OS X (Snow Leopard) iPhone 4 32GB \| iPad 2 16GB \| MacBook Air 11" Ultimate visit the geeks office

NICKST3R #5 (permalink)
Member Since: Aug 06, 2009 Posts: 36 Mac Specs: 13in 2.53GHz 4GB DDR3 RAM 250GB HDD and a turbocharger	08-31-2009, 06:07 PM iAntiVirus was taking over the CPU so I disabled the enabled the app. idle at 56C now

MYmacROX #6 (permalink)
Member Since: Mar 17, 2009 Posts: 2,988 Mac Specs: 15" MBP 2.4 GHz C2D, 500GB 7200 RPM, 4GB RAM, NVIDIA 256mb GeForce 8600M GT, SL 10.6.7	08-31-2009, 06:40 PM Also running cooler for me according to touch/feel. Haven't run diagnostics to confirm, but too late now cause I have no idea what temps were with Leopard anyways.

jetmech1 #7 (permalink)
Member Since: May 19, 2009 Location: Charlotte, NC Posts: 142 Mac Specs: iMac 27" 3.06 GHz, 1TB, 8 GB	08-31-2009, 07:14 PM My MacBook is running hotter. I can feel it on the bottom side. But I still like SL. My MacBook is quicker, that may explain why it is running hotter. iMac - 27" - c2d - 3.06 GHz - 1 TB HD - 8 GB Mac Pro - 2.66 GHz Quad-Core - 2 Apple 23" LCD 15.4" Unibody MBP - 13" White MacBook 3 iPads, 2 iPhones, 3 iPods, 1 Apple TV

CactusVideoGuy #8 (permalink)
Member Since: Apr 29, 2009 Location: Arizona Posts: 46 Mac Specs: 2008 15.4" Santa Rosa (C2D, 2.2GHz, 4GB RAM, 500GB HDD)	09-02-2009, 08:16 AM I can't quite remember what my temps were running under Leopard, but since bumping to SL last Friday, I have only noticed one or two heat spikes, and those were when I was running intensive apps (FCE, Time Machine) and haven't noticed much else... right now iStat Pro is showing my temps as follows (not all, but two most important): CPU 47C, GPU 55C. Fans aren't spinning up right now - they're sitting around 2K rpm... Cheers! You can make some people happy some of the time, but you can never make a PC enthusiast understand the brilliance of the Macintosh OS. Until you put it in front of them.

NMMI89 #9 (permalink)
Member Since: Jul 02, 2009 Location: San Diego, CA. Posts: 58 Mac Specs: MacBook Pro 15", 2.8Ghz, 4GB RAM, 500GB/ 60GB 5G iPod/ 160GB 6G iPod/ 8GB Nano/ 32GB 2nd Gen iTouch	09-02-2009, 01:41 PM My MBP was running really hot after I installed SL. But now it's cooler. No worries. My mind is the weapon. Everything else is merely an accessory.

vivekritu #10 (permalink)
Member Since: Sep 02, 2009 Posts: 2	09-02-2009, 05:00 PM My Mac Book Air is hotter and is also freezing up the video playback. I could play all MKV files earlier. Now after 5 minutes they freeze. Very weird.

MasterCoach #11 (permalink)
Member Since: Jul 24, 2009 Posts: 2	09-11-2009, 02:49 PM My 15" MacBook Pro is running hotter ever since I installed Snow Leopard. There's an area above the F3 and F4 keys that gets too hot to touch. I'm thinking that Snow Leopard is turning on some hardware components that don't need to be. Anyone have other ideas/suggestions?

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

leopard-user1 #12 (permalink)
Member Since: Jan 27, 2009 Location: New York, NY Posts: 532 Mac Specs: 17" MacBook Pro, 2.5 GHz Intel Core 2 Duo Processor, 2 GB 667 MHz DDR2 SDRAM, not unibody	09-11-2009, 06:48 PM My MBP is actually cooler under SL than it was with Leopard. (from scienceteecher.com) 17" MacBook Pro, OSX 10.6.2 Snow Leopard

DarkestRitual #13 (permalink)
Member Since: Apr 09, 2009 Location: Ithaca NY Posts: 2,073 Mac Specs: 13 inch alMacBook 2GHz C2D 4G DDR3, 1.25GHz G4 eMac	09-11-2009, 11:52 PM Yes... on average 4-10ºC warmer for me on my aluminum macbook 2GHz.

Marc van Eldonk #14 (permalink)
Member Since: Sep 13, 2009 Posts: 1	09-13-2009, 08:15 AM Hello Mac People, I noticed, like many of you, that a MacBook Pro is running pretty warm. Especially when running older apps, and the processor is working on avg 80 %, your Mac easily exceeds 70 °C. Well, you can live with that, but I prefer to keep my Mac as cool as possible. I do not want my MacBook Pro to end up like many older IILC's, for those that remember this Mac, where many processors got thermal cracks. Very simple solution. Showing more then 70 °C in your SMC Fan control, running on 5500 rpm. Just remove the Battery when running of the Power Supply ??!!! Yes..... thats all. The temp will drop due to better circulation, and disabling the charging circuit, to about 40 °C I love it. Marc

bobtomay #15 (permalink)
Member Since: Dec 22, 2006 Location: Texas, where else? Posts: 19,063 Mac Specs: 15" MBP 2.33 C2D 256 4GB, MBA 13" i7 1.8, MB 2.0 2GB, Nano 4th, 3GS, iPad 1	09-13-2009, 08:42 AM Another little reason the temp drops, is that when you take out the battery and run on power only, the CPU is automatically throttled back. So you're also losing at least a quarter of your processing speed by doing so. Am not going to go look for them myself, but this was documented by several respected hardware sites a couple years ago. This is not a recommended practice. I cannot be held responsible for the things that come out of my mouth.