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Fanless Design

W

Wackery

Cancelled
Original poster
Feb 1, 2015
1,342
1,571
Does anyone know how the cooling of the new 2015 Macbook work? Is the interior completely sealed off from the outside world (relatively of course) like debris and dust, or does it have passive vents around the hinges to let some air out?

I absolutely hate dust in my computers and this is a big selling point for me, does anyone know?
 
Last edited:
Wackery said:
Does anyone know how the cooling of the new 2015 Macbook work? Is the interior completely sealed off from the outside world, completely isolated (relatively of course) from the outside world and debris like dust or does it have passive vents around the hinges to let some air in?

I absolutely hate dust in my computers and this is a big selling point for me, does anyone know?
Click to expand...

The thermal dissipation works in the same way as tablets in general; any thermal energy produced by internals would be conducted and radiated onto the outer casing, which then distribute the heat on whatever that's in contact with (air, any surface, your body, etc).
 
Wackery said:
Does anyone know how the cooling of the new 2015 Macbook work? Is the interior completely sealed off from the outside world (relatively of course) like debris and dust, or does it have passive vents around the hinges to let some air out?

I absolutely hate dust in my computers and this is a big selling point for me, does anyone know?
Click to expand...

HardBall said:
The thermal dissipation works in the same way as tablets in general; any thermal energy produced by internals would be conducted and radiated onto the outer casing, which then distribute the heat on whatever that's in contact with (air, any surface, your body, etc).
Click to expand...
neat, that's what I really want, I can't wait to see it in person, also edited my original post for the word salad, lol
 
HardBall said:
The thermal dissipation works in the same way as tablets in general; any thermal energy produced by internals would be conducted and radiated onto the outer casing, which then distribute the heat on whatever that's in contact with (air, any surface, your body, etc).
Click to expand...

I would bet that the rMB's aluminum casing would better at dissipating heat than an iPad. Additionally heat will have more surface area to dissipate from because of the open keyboard and screen.
 
iRun26.2 said:
I would bet that the rMB's aluminum casing would better at dissipating heat than an iPad. Additionally heat will have more surface area to dissipate from because of the open keyboard and screen.
Click to expand...

My only concern is that we see so many complaints in the MBP forum about MBPs running hot with a fan, now that these bad boys are fanless what will be the running temps for them?
 
maflynn said:
My only concern is that we see so many complaints in the MBP forum about MBPs running hot with a fan, now that these bad boys are fanless what will be the running temps for them?
Click to expand...

Let just hope the Apple engineers have figured out how to avoid it. My thought is that the Core M processor will shut itself off before things get that hot. I don't think it will ever get hotter than people's iPads.
 
iRun26.2 said:
Let just hope the Apple engineers have figured out how to avoid it. My thought is that the Core M processor will shut itself off before things get that hot. I don't think it will ever get hotter than people's iPads.
Click to expand...

CPU will throttle as it reaches Tjunction, and that`s a genuine concern. What`s going to save the day is the way the Core M races up to max required Turbo Boost" and back to idle far faster than other CPU`s.

"Tjunction Max is the maximum temperature the cores can reach before thermal throttling is activated. Thermal throttling happens when the processor exceeds the maximum temperature. The processor shuts itself off in order to prevent permanent damage."

Q-6
 
It probably will get as hot as an iphone/ipad at its worst.
 
Probably like an iPad.

Bet it gets hot.

I'll bet this is a major complaint. It will probably get to hot for your lap. People will complain almost immediately.

Of course it will depend on how you use it.
 
Lucifer666 said:
Probably like an iPad.

Bet it gets hot.

I'll bet this is a major complaint. It will probably get to hot for your lap. People will complain almost immediately.

Of course it will depend on how you use it.
Click to expand...

Because it must rely on passive cooling I don't think it could be allowed to get hotter than an iPad. I agree some people will still complain but I don't think it will get to hot to sit on your lap. I'm hoping the Apple engineers did a good job of getting the heat distributed over the aluminum chassis. It's only 5W after all!
 
MAcbook1.jpg

From the Macbook design page on Apple.com:
"The new MacBook is the first Mac notebook ever without a fan. Since the Intel Core M chip draws only 5 watts of power and therefore generates less heat, no fan or heat pipe is required. Instead, the logic board is seated on top of an anisotropic graphite sheet, which helps disperse any heat that is generated out to the sides, all while your Mac stays virtually silent."

You can see the anisotropic graphite sheet in that image. I haven't seen much written up about this. Seems like it's been overlooked for the most part.
 
Now that is ...

maclook said:
Image
From the Macbook design page on Apple.com:
"The new MacBook is the first Mac notebook ever without a fan. Since the Intel Core M chip draws only 5 watts of power and therefore generates less heat, no fan or heat pipe is required. Instead, the logic board is seated on top of an anisotropic graphite sheet, which helps disperse any heat that is generated out to the sides, all while your Mac stays virtually silent."

You can see the anisotropic graphite sheet in that image. I haven't seen much written up about this. Seems like it's been overlooked for the most part.
Click to expand...

.... a clever use for graphene nic effort from apple there.
 
JoeG4 said:
It probably will get as hot as an iphone/ipad at its worst.
Click to expand...

That's what I hope. I'm thinking about replacing my MacBook Air with the MacBook, but I think I'm going to wait for the reviews before I decide if I'm going for the 1.2 or 1.3, I can imagine that the 1.2 is the better choice heat wise.
 
I have a cheapie laptop (Asus x205TA) that has no fan but it has an atom chip. It gets warm but not too hot. If I leave it on my bed on a blanket and watch netflix for a few hours it gets about as hot as my iphone/ipad would get under similar conditions.
 
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