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MacBook Pro heat on battery

Message #1 - Posted 2006/08/20 - Ian Robinson

As I've posted a few times recently I'm testing a 17" MacBook Pro. I've said before how hot a 15" MacBook Pro I bought got. So hot I returned it. This 17" does get hot when running with the power plugged in. Maybe not as hot as the 15" but still uncomfortably hot. On battery however it gets warm but not hot. In fact it can be used in my lap quite comfortably whilst on battery.

I'm quite tempted to keep this 17", get a 2nd battery and when I need to use it as a laptop run it on battery. Having 2 would give about 5.5 hours of use.

Have I mentioned how good the screen is on the 17" MacBook Pro? It's very, very good. This one is a non-glossy one. The keyboard illumination in dim lighting conditions is very useful as well.

Cheers,

Ian

Ian Robinson, Belfast, UK
<http://www.canicula.com/wp/>

Message #2 - Posted 2006/08/20 - Jaimie Vandenbergh

On Sun, 20 Aug 2006 22:21:06 +0100, Ian Robinson wrote:

As I've posted a few times recently I'm testing a 17" MacBook Pro. I've said before how hot a 15" MacBook Pro I bought got. So hot I returned it. This 17" does get hot when running with the power plugged in. Maybe not as hot as the 15" but still uncomfortably hot. On battery however it gets warm but not hot. In fact it can be used in my lap quite comfortably whilst on battery.

CPU's are running at 1GHz or so, makes quite a difference. You can change that in power options, if you feel the need to cook a bacon buttie when you're out and about!

I'm quite tempted to keep this 17", get a 2nd battery and when I need to use it as a laptop run it on battery. Having 2 would give about 5.5 hours of use.

Remember that sleeping doesn't survive power-out. Do the MBP's support full hibernation, out of the box?

Have I mentioned how good the screen is on the 17" MacBook Pro? It's very, very good. This one is a non-glossy one. The keyboard illumination in dim lighting conditions is very useful as well.

Very useful. Eg,
http://web.mac.com/keindesign/iWeb/Site/iSpazz.html

Cheers - Jaimie (who does like lit keyboards, actually)

I have seen the fuschia, and it's ... er ... sort of pink and mauve with bits hanging out. -- Richard Robinson, urs

Message #3 - Posted 2006/08/20 - Ian Robinson

On Sun, 20 Aug 2006 22:35:32 +0100, Jaimie Vandenbergh wrote (in a previous article):

CPU's are running at 1GHz or so, makes quite a difference. You can change that in power options,

Where?

Remember that sleeping doesn't survive power-out. Do the MBP's support full hibernation, out of the box?

Don't know.

Ian

Ian Robinson, Belfast, UK
<http://www.canicula.com/wp/>

Message #4 - Posted 2006/08/20 - Jaimie Vandenbergh

On Sun, 20 Aug 2006 22:45:51 +0100, Ian Robinson wrote:

On Sun, 20 Aug 2006 22:35:32 +0100, Jaimie Vandenbergh wrote (in a previous article):

CPU's are running at 1GHz or so, makes quite a difference. You can change that in power options,

Where?

Oops - missed a "probably". Is there nothing in Energy Saver/Options labelled Processor Performance?

Remember that sleeping doesn't survive power-out. Do the MBP's support full hibernation, out of the box?

Don't know.

If you can, it'll probably give you the chance in the same place.

Cheers - Jaimie

If you can't beat your computer at chess, try kickboxing

Message #5 - Posted 2006/08/20 - Ian Robinson

On Sun, 20 Aug 2006 22:52:19 +0100, Jaimie Vandenbergh wrote (in a previous article):

Oops - missed a "probably". Is there nothing in Energy Saver/Options labelled Processor Performance?

Nope.

Ian

Ian Robinson, Belfast, UK
<http://www.canicula.com/wp/>

Message #6 - Posted 2006/08/20 - Jaimie Vandenbergh

On Sun, 20 Aug 2006 23:02:19 +0100, Ian Robinson wrote:

On Sun, 20 Aug 2006 22:52:19 +0100, Jaimie Vandenbergh wrote (in a previous article):

Oops - missed a "probably". Is there nothing in Energy Saver/Options labelled Processor Performance?

Nope.

I am surprised.

What does "About this Mac" say about the cpu speed when it's battery powered? The usual thing for intel chipsets is to down the CPU frequency and voltage for power savings.

Cheers - Jaimie

"I love the way Microsoft follows standards.
In much the same manner that fish follow migrating caribou." - Paul Tomblin, ASR

Message #7 - Posted 2006/08/20 - Ian Robinson

On Sun, 20 Aug 2006 23:08:12 +0100, Jaimie Vandenbergh wrote (in a previous article):

What does "About this Mac" say about the cpu speed when it's battery powered?

2.16GHz.

The usual thing for intel chipsets is to down the CPU frequency and voltage for power savings.

I agree this is probably happening. It's just not adjustable in the standard GUI.

Ian

Ian Robinson, Belfast, UK
<http://www.canicula.com/wp/>

Message #8 - Posted 2006/08/20 - Rob E

"Ian Robinson" <junk@canicula.invalid> wrote in message news:0001HW.C10E9F9F0020DB6FF0284500@news.gradwell.net...

On Sun, 20 Aug 2006 23:08:12 +0100, Jaimie Vandenbergh wrote (in a previous article):

What does "About this Mac" say about the cpu speed when it's battery powered?

2.16GHz.

The usual thing for intel chipsets is to down the CPU frequency and voltage for power savings.

I agree this is probably happening. It's just not adjustable in the standard GUI.

Ian
--
Ian Robinson, Belfast, UK
<http://www.canicula.com/wp/>

If you think that's HOT.... wait till the AMD chips start arriving.... regards,
Rob E.

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