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View Full Version : Next Macbook Air and Sandy Bridge heat




thisday
Apr 17, 2011, 02:04 AM
Should someone buy now an air that knows its cool and wait for Ivy Bridge?
All the threads of overheated mbp worry me. If you put an 1.4 SB with TB up to 2.3 (http://ark.intel.com/Product.aspx?id=54619) in a thin body like that i think there will be more serious heat issues. What do you think?



OSMac
Apr 17, 2011, 07:13 AM
Agree if silent and cool are important nothing wrong with the current model except the lack of a back light on the keyboard.

Psilocybin
Apr 17, 2011, 07:18 AM
ya..plus running at high temperatures all the time lower the lifespan of the components..not to mention give your legs 3rd degree burns...well on the bright side you can always cook a few burgers on the laptop...kind of like a portable grill..

stockscalper
Apr 18, 2011, 07:41 AM
ya..plus running at high temperatures all the time lower the lifespan of the components..not to mention give your legs 3rd degree burns...well on the bright side you can always cook a few burgers on the laptop...kind of like a portable grill..

+1

Maybe Apple can get George Foreman to endorse it :D

Satori
Apr 18, 2011, 07:47 AM
It will be an engineering challenge all right. If anyone is up to it, Apple is. I guess we'll just have to wait and see.

One thing is for sure, I don't think a backlit keyboard will be a priority for the next gen MBA.

cactus33
Apr 18, 2011, 08:13 AM
Is the 1.4Ghz version the lowest model? With a 1.4-2.3Ghz range, that sounds pretty fast.

But without the need for an old 320m chip, wouldn't there be more space for stuff and allow the MBA to run more cooly? even if the new processor runs hotter?

Cerano
Apr 18, 2011, 08:16 AM
except people dont understand that 2.3ghz is only when its running on 1 core so turbo is not the miracle people expect it to be. its not overclocking on demand per se

entatlrg
Apr 18, 2011, 08:21 AM
SB will not go into MBA - too hot.

2nd gen Ivy Bridge will run more efficiently and cooler, then Apple will update the Air - Spring/Summer 2012.

ghostlyorb
Apr 18, 2011, 08:41 AM
Overheating MBPs? Yeah RIGHT! I have the fully loaded 15" 2011... and it runs 10degrees C cooler than my 2009 MBP. People are just paranoid! Buy a MBP.. they're legit!

Kentochan
Apr 18, 2011, 09:46 AM
Knowing Apple, they probably won't make a mistake again like the iPhone 4 with its antenna issues. But then again, iPhone 4 sold a heck of a lot regardless. I say this could go either way.

fyrefly
Apr 18, 2011, 01:24 PM
Heat all depends on TDP of the chip, and the LV/ULV SB Chips that people are talking about are all 17W TDP. Add in a few more W for overhead on the chipset and we're talking about 20W TDP for a SB Chip.

The Current SL9400/9600 chips in the MBA are rated at 17W As well. Add in ~8W for the 320M and you've got more TDP (aka more heat/less battery life) in the current MBA than you would in a potential 17W SB MBA.

MacFever
Apr 18, 2011, 01:34 PM
Are there any reviews yet on the SAMSUNG Series 9 that talks about heat problems or if it runs cool under load or not??

that should give us some idea of what the heat in the new AIR's would be like.

heat is my only concern for the new AIR's....I don't care about the GPU power as much since I won't be gaming on it...as long as it can show 1080p HD video smoothly....

fyrefly
Apr 18, 2011, 03:00 PM
Are there any reviews yet on the SAMSUNG Series 9 that talks about heat problems or if it runs cool under load or not??

that should give us some idea of what the heat in the new AIR's would be like.

heat is my only concern for the new AIR's....I don't care about the GPU power as much since I won't be gaming on it...as long as it can show 1080p HD video smoothly....

LaptopMag says it can go above 100 degrees F when running a Hulu Video for 15 mins:

http://www.laptopmag.com/review/laptops/samsung-series-9.aspx?page=2

That's about as hot as the 2011 MBP gets, which is weird 'cause the TDP of the LV i5 chip is much lower (35W vs. 17W).

MacFever
Apr 18, 2011, 03:16 PM
^ if that's really Farenheight then that's not so bad....I would think for a laptop..

BlackMax
Apr 18, 2011, 04:55 PM
^ if that's really Farenheight then that's not so bad....I would think for a laptop..

The laptopmag.com review did not measure the temperature of the CPU or inside the Series 9. It only measured the temperature on the outside of the Series 9.

When using the 13-inch Series 9 we didn't notice it getting uncomfortably hot in our laps. However, on a flat surface the underside registered 99 degrees after playing a Hulu video at full screen for 15 minutes. The area by the vent was naturally hotter: 108 degrees. On top, the touchpad only reached 82 degrees but the space between the G and H keys got up to 100. We consider anything above 95 degrees to be uncomfortable.

bloodycape
Apr 18, 2011, 05:26 PM
LaptopMag says it can go above 100 degrees F when running a Hulu Video for 15 mins:

http://www.laptopmag.com/review/laptops/samsung-series-9.aspx?page=2

That's about as hot as the 2011 MBP gets, which is weird 'cause the TDP of the LV i5 chip is much lower (35W vs. 17W).

I would have to think thinness, interior design, vents have played a big part of the similar temp numbers.

If the MBA gets a thunberbolt port in the and a higher gamut matte display for the next gen model, specially in the 11.6in model, I think I could be sold.

Exana
Apr 18, 2011, 05:27 PM
SL9400 : 17 watts
GeForce 320m : 12 watts


i5-2537M : 17 watts
PCH : 5 watts

Should be nice but less GPU power. (U)LV Core ix have HD Graphics 2000.

Mr. Retrofire
Apr 18, 2011, 05:35 PM
SB will not go into MBA - too hot.

Sandy Bridge is the 3rd generation, if you see the current Core2Duo as the 1st generation. Sandy Bridge is also the 2nd generation of the 32 nm Intel-processors. The first 32 nm generation was Westmere, also known as Nehalem-C.

Sandy Bridge provides 2-4 times more computation power per watt than the previous 32 nm generation. Sandy Bridge is very power efficient. A new Sandy Bridge MBA should run cooler and much longer than the current model. No one has to wait for Ivy Bridge (22 nm in 2012). The statistics say (http://buyersguide.macrumors.com/#MacBook_Air) that we will see a new MBA in 06/2011.

coldmack
Apr 18, 2011, 06:29 PM
I would have to think thinness, interior design, vents have played a big part of the similar temp numbers.

If the MBA gets a thunberbolt port in the and a higher gamut matte display for the next gen model, specially in the 11.6in model, I think I could be sold.
I'd rather have a 350nit over matte on my display, and I would think thunderbolt would be the next logical port step on the Air, even the 11.6in model.

FX4568
Apr 18, 2011, 06:29 PM
Overheating MBPs? Yeah RIGHT! I have the fully loaded 15" 2011... and it runs 10degrees C cooler than my 2009 MBP. People are just paranoid! Buy a MBP.. they're legit!

Welcome to the MBA forum, where we talk about the Macbook Air.
If you want to talk about overheating MBPs, go talk in the MBP forum.
a 15" doesnt compare to a 13" in heat sink capacity.

Psilocybin
Apr 18, 2011, 07:03 PM
Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3_1 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8G4 Safari/6533.18.5)

Overheating MBPs? Yeah RIGHT! I have the fully loaded 15" 2011... and it runs 10degrees C cooler than my 2009 MBP. People are just paranoid! Buy a MBP.. they're legit!

Welcome to the MBA forum, where we talk about the Macbook Air.
If you want to talk about overheating MBPs, go talk in the MBP forum.
a 15" doesnt compare to a 13" in heat sink capacity.

Haha +1

fyrefly
Apr 19, 2011, 01:16 AM
Welcome to the MBA forum, where we talk about the Macbook Air.
If you want to talk about overheating MBPs, go talk in the MBP forum.
a 15" doesnt compare to a 13" in heat sink capacity.

To be fair, the post you were commenting on was in response to someone slagging the 2011 MBPs as overheating monsters to justify a "No SB in the MBA!" claim. So he was at least 50% on topic. ;)


SL9400 : 17 watts
GeForce 320m : 19 watts

i5-2537M : 17 watts
PCH : 5 watts

Should be nice but less GPU power. (U)LV Core ix have HD Graphics 2000.

I've never seen the TDP for the 320m listed as so high! If you don't mind me asking, Where are those numbers from?

Exana
Apr 19, 2011, 04:19 PM
I read so many review those days, I don't remember. :confused: It seems quiet high for me. :eek: In my mind, it was about 12 watts.

EDIT : Found ! MacWorld.fr (http://www.macworld.fr/2011/03/08/mac/qu-attendre-nouveau-macbook-air/512705/), dumb...

PS : I change my original post for not write wrong specs.

calvol
Apr 19, 2011, 06:43 PM
Anyone know if TDP numbers are based on processor at full load or not? Is this a max power consumption or does it vary with load?

fyrefly
Apr 20, 2011, 12:54 AM
Anyone know if TDP numbers are based on processor at full load or not? Is this a max power consumption or does it vary with load?

As far as I've ever known, the TDP is the MAX #. That's the Max power consumption - it shouldn't consume more than that under load. Anyone heard different?

Also with the new SB architecture, the processor tries to speed through instructions and then get back to sleep/idle ASAP to conserve energy (and it's much better at getting back to sleep/idle than a C2D).

thisday
Apr 20, 2011, 01:14 AM
SL9400 : 17 watts
GeForce 320m : 12 watts


i5-2537M : 17 watts
PCH : 5 watts

Should be nice but less GPU power. (U)LV Core ix have HD Graphics 2000.

For the 11:
SU9400 = 10W
GeForce 320m = 12W
So same battery life more or less for it.

GekkePrutser
Apr 20, 2011, 10:22 AM
Knowing Apple, they probably won't make a mistake again like the iPhone 4 with its antenna issues. But then again, iPhone 4 sold a heck of a lot regardless. I say this could go either way.

They won't make the same mistake again in the next model?

They never fixed the crumbling MacBook palm rest problem until the major redesign, or the MBA hinge problem, or the iPhone 3G/3Gs case cracking at the corners, or the overheating of the MBA. Never until the next big case design.

It's not even certain that they fixed the iPhone 4 antenna issues since the successor isn't out yet. The Verizon one obviously needed a different antenna because it operates at different frequencies (antenna length and design is highly dependent on frequency) but it doesn't say anything about the next GSM model.