New iPad Runs About 10 Degrees (F) Hotter than iPad 2 [Updated]

Wirelessly posted (Mozilla/5.0 (iPhone; CPU iPhone OS 5_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9B179 Safari/7534.48.3)

Just wanted to add this:

The human body has an outside skin temperature of around 34 degrees Celsius.

Also it doesn't say anywhere if the thermal image was taken of the front of the iPads or the back? Significant fact missing there.
 
Skolvikings said:
Wow... defensive much people?

My reaction to the article was "Hmm, that's interesting."

A lot of your reactions: "But Apple's awesome... People are whiners if they complain about this... The extra temperature is not that bad, seriously it's not... etc."

:rolleyes:

I seriously wish some of you could objectively look at what you write around here sometimes.

You'd roll your eyes too. ;)
Click to expand...

It's 5 ****ing degrees celsius... if you're going to hate on Apple why the **** are you here!?
 
Mother of Pearl..

Cancelled my order in light of all this "yellow screen" and "runs hot" business. Just went through a mess of manufacturing defects with the Transformer Prime, not interested in going through this again. I'll wait for you early adopters to weed-out all the quirks first ;)
 
I like the update. Essentially apple says "If you got a problem, let us know, don't listen to the haters who are trying to make this seem like the armageddon" hehe :D
 
Miserabilist said:
Cancelled my order in light of all this "yellow screen" and "runs hot" business. Just went through a mess of manufacturing defects with the Transformer Prime, not interested in going through this again. I'll wait for you early adopters to weed-out all the quirks first ;)
Click to expand...
Well that was a mistake, considering the screen temperature is accurate (it's not supposed to be blue) and the iPad doesn't run hot (mildly warm in the lower left corner, sure).
 
It does run hotter. Try using the iPad at 100% brightness and then using it at 50%. There's a big difference actually, but it's not a deal breaker. I still love mine, regardless.
 
33.6°C is warm but not too hot to the touch. If you look at the thermal image you will see that peak temperature is at a particular spot. The other areas look like it's around 29°C - 30°C.
 
yup ...

I upgraded from an ipad1.

My new iPad runs hotter.

My new iPad feels much heavier to the point where I don't like
to hold it and try to prop it up.

I do not really like/prefer the new form vs the ipad1 (shocker!)
[the damn thing is difficult to get a grip on, hard to find the
volume rocker, etc).

You know what? I don't care. It's a great device and, as another
forum poster said, this is what we've been training for with MBPs
for all these years. Funny.

In all honesty -- it's a new device -- the next one will be different
in some other way.

If the batteries get so hot they sometimes blow up -- that's one
thing, but a little heat is to be expected. Is it noticeable? Yes.
Is it uncomfortable? Maybe at times. Is too hot to be safe?
Probably not.

People are saying that the frame rates are about the same.
I guess people really want faster than 60 fps generated?
If the device only updates at 60 fps, what really does more
frames generated give you -- other than more heat? :)

Honestly, I'd rather have things like (1) apple allowing us
grownup to unlock (ie: jailbreak) our own devices. If not
current models -- why doesn't apple provide a minimal boot
image for discontinued models so we can get some novel
use from those things until they fail completely? The discontinued
devices aren't even covered by apple anymore anyway, right?

Finally -- AT&T -- NO TETHERING? Really? No tethering on
my unlimited plan, really? NO TETHERING on LTE? Really?

Why do I need to pay $30/mo for iphone data and $30/mo
for ipad data (LTE, whatever). Why can I not pay $50 a month
and get X GB to my *account* -- whatever device I use.

If you're going to give us ridiculous limits and ridiculous excuses
and crazy ridiculous data rate charges -- oh... nevermind, I get it.

Scott
ps: See, don't even remember the heat thing, once you start looking
at things that actually matter in the long run.
 
My iPhone gets noticeably warmer while I charge it. If it bothers your that much, I'd be happy to take your iPad 3 off your hands!
 
In Brazil, there were several problems with BGA soldering because of higher temperatures in a tropical country. White Macbooks (Unibody) not rarely had their rubberish base deformed along the time.

I wonder if the New iPad supports brazilian (an other tropical countries) temperatures.
 
They almost doubled the battery size (25Whr to 45Whr) and yet it has the same battery life. That means it uses about twice the power and they haven't changed the case in any real way so of course it is going to be higher.
 
As hot as...

your own skin! Aggh! Heatgate, here we come! Mike Daisey, where are you to tell us about the 13-year-old Chinese workers having their skins taken off by the 92 degree temperature???
 
Mine got warm after downloading all my "main" apps about 20 of them, and playing infinity blade II for about 20 minutes. I figure larger battery, Quad GPU's that would do it. It is not "hot" but it is definitely warm enough to notice. I upgraded from an Ipad I, which never got warm like that. But I also have an x86 tablet that gets warm and has active cooling, so I didn't think much of it.
 
Why is this news?

Isn't this basic 5th grade science?

The device has a 70% larger battery than the iPad2
+
The device has similar 'battery life' than the iPad2
=
Therefore it consumes more power than the iPad2

(my 4th grader actually got this far on his own)

Now the 5th grade part:
If it consumes more power, then barring Apple somehow having a physics breakthrough in chip efficiency, it will produce more heat energy.

So, in the words of my 4th grader. Duh.
 
I think that a little extra heat is part of the price you have to pay to get a faster CPU/GPU. With improved manufacturing processes you can fix that to some extent so I bet that the "new new iPad" a year from now will be a bit cooler.
 
TwinMonkeys said:
I think that a little extra heat is part of the price you have to pay to get a faster CPU/GPU. With improved manufacturing processes you can fix that to some extent so I bet that the "new new iPad" a year from now will be a bit cooler.
Click to expand...

It will be called The Newer iPad or The New iPad 2....this name change was a screw up...:confused:
 
hamean said:
The ipad (3rd Gen) has a 42.5-watt-hour rechargeable lithium-polymer battery
the ipad 2 has a 25-watt-hour rechargeable lithium-polymer battery

Both the ipad 3rd Gen and ipad 2 last the same amount of time on a charge. the ipad 3 would HAVE to get hotter, because it's burning through power at a higher rate. It HAS to run hotter with the same heat dissipation mechanism. iPad 3rd gen uses 70% more power than the ipad 2.
Click to expand...

It is really as simple as that, every bit of energy in the battery get's converted to heat at some point. (Except for the tiny fraction of energy given off as light)

----------
itcomesinwaves said:
Im pretty sure that it's cause by the backlight. I used my new iPad all weekend at 50% brightness and I barely noticed any extra heat. After reading some comments on other websites I tried turning the brightness up to 100%. Sure enough the iPad became noticeably hotter. Not to hot to hold, but quite warm. Turning the brightness down to 75% brought the heat down considerably.
Click to expand...

Yes, it is the backlighting that produces most of the heat. The new display uses about 7 watts at peak brightness. The display on the iPad 2 only uses 2.5 watts at peak. This is the main reason for the bigger battery, and therefore the heat. (Of course the A5X uses more energy too, but not 2.5 times as much like the backlight). Think, 42.5 Wh / 7 Watts = 6.1 hours (of battery life), definitely a good ballpark value.

If the iPad is set to maximum brightness, it'll only last 5.8 hours on battery without running any apps. If the brightness is set at 50% (the middle) then the iPad happens to last exactly twice as long (11.6 hours when not running any apps and backlight set to say on as well). That data right there tells me where the main energy consumption is, and what produces most of heat.

The lower left gets warmer than the rest because that's near the warmer part of the logic board, although its hard to say if most of the heat comes from the A5X SoC, but the heat is obviously transmitted by the heat sink which is nothing more than a metal cover. I would assume the relative uniformity of the rest of the iPad getting warm is because of the TWO light bars running along both sides. Again, other than a warmer spot near the logic board, the heat is uniform from the light bars of the backlighting system.

And it's definitely not hot! Every laptop easily get's warmer, I think it's rather impressive that the battery is so big that it can store enough energy to give off a little bit of noticeable heat for hours. I remember that it was warmer in the first 30 minutes of first time use, and my first thought was WOW, that's a big battery for a mobile (ARM) device.
 
dukemunk said:
I was at the best buy store in Roseville Mi. and came up to the ipad 3 display picked it up and right away I noticed it was HOT! I said to the apple guy in the black apple shirt, "THIS THING IS HOT"! He said "It's probably the alarm wire on it"... I said, "no way man, it's the ipad'! I hope apple knows about this! Could spell out trouble here! Makes me wonder how they do there testing? I hate when I got my laptop on my legs and how I get very warm from it. Dislike.
Click to expand...

Did you check the temperature of the TV's and other electronics in the store to make sure they were in-spec?
 
You must log in or register to reply here.
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.
Back
Top