in that case instead of installing coolbook, take the Air back to the store...
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10.5.3 Air is running cooler
- Thread starter ThanatosId
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in that case instead of installing coolbook, take the Air back to the store...
All I know is that my MBA had a 400MB download, and my wifes Black MacBook update was only 200+ MB, so The Air Got Extras!!
My MBP download was 420MB.
Lol - those of us who installed Coolbook did so to solve a problem with the stock MBA, specifically overheating. The undervolting technique has been perfectly reliable for many of us, and is certainly not something that would *raise* temperatures.
As to why you think it's idiotic to attempt to solve problems instead of just whine about them... well, I'm mystified!
As I said above, if it's actually faulty, take it back to the store - why bother installing coolbook to patch up a hardware problem?
Being stupid, I'm probably wrong, but I'm thinkin that If I would try to return a unbroken, in spec , running Air after 3 months they might not just give me my money back.
Maybe you could call them for me?
Being stupid, I'm probably wrong, but I'm thinkin that If I would try to return a unbroken, in spec , running Air after 3 months they might not just give me my money back.
Maybe you could call them for me?
Doesn't the Air come with a 1 year warranty? Mine I got in Japan did. If so, take it back.
I believe the temp "problem" is a "problem" experienced by most, if not all, of the MBA users. I think it is mostly attributed to inefficient cooling of the Air...due to the heatsink, fan, etc whatever. So no matter how many times you get a new Air, it won't make a difference. 10.5.3 might make the air cooler (I dun think so) but coolbook is much better with undervolting activated. The temperature difference is usually 15~20C.
I use CoolBook on my MacBook Air because of Skype Video causing a core shutdown after about five to ten minutes of conversation, which then makes Skype Video unusable. This has happened on every MacBook Air I've tried, including several different ones in my local Apple Store, much to the surprise of the Apple employees.
By undervolting the CPU and letting it run cooler with CoolBook, I have no issues with Skype Video and get slightly longer battery life as well.
Actually, I think the logic of "if it was necessary Apple would have implemented something like it" is pretty stupid. Wouldn't that render every utility ever written as unnecessary?
I guess one question I have is, why should i care about the temperature? I understand that the core shutdown problems are annoying and I guess maybe I would prefer a little less fan activity, but really it doesnt bother me unless it effects performance. I was getting core shutdowns, so I brought it in for repair. I don't think I would really have ever paid much attention to fan speed unless I had participated in these (appropriately) obsessive forums.
My point is... outside of performance problems, why does everyone care so much about temperature? Is it because the laptop is hot or it signifies long term durability problems, or is it just a desire to have it cooler?
My point is... outside of performance problems, why does everyone care so much about temperature? Is it because the laptop is hot or it signifies long term durability problems, or is it just a desire to have it cooler?
After reading above, it seems that the Air has some serious build issues - luckily I've never had a core shut down or excessive heat - heck I spent 8 hours straight working on Photoshop CS3 connected to a HD monitor and working on 5k images (with BT Wacom and Keyboard) and it was fast a great... I must be really, really lucky.
You do have a SSD model which does help a little bit in terms of cooling. Your SSD doesn't radiate heat as much as the HHD(since theres no moving parts). The processor is also faster, so that somewhat helps with the heat problem (finish work faster, more time to idle, etc... probably doesn't make sense but w/e)
After a few tests to modding the heatsink assembly I can tell with full confidence that the heatsink is EXTREMELY efficient stock. Adding more mass and/or more surface area to dissipate the heat is LESS efficient since our fan is so small and can only blow so much air at once.
The biggest problem with our heatsink is the conductivity. The CPU and Chipset must have near perfect heat dissipation contact or you'll see overheating problems. Apple, earlier builds put too much thermal paste which acted as a blanket, warming a warmed CPU even more. A properly done thermal paste would extremely lower the CPU temps. I'm not using AS5 right now, using some cermique thing by Arctic Silver... I need to get some AS5 since I realized my apparent "AS5" is not AS5.. stupid Antec thermal paste. lol
I am currently running w/o coolbook activated (I have installed, but the checkmarks aren't checked) and I can watch near an hour of youtube before fans needs to be kicked in (temps rise <65 Deg C). Of course, with coolbook activated, it'll be a lot cooler, but our idle voltage is 0.9 Volts, which is the lowest setting for coolbook.
I'm not sure it's build issues, it sounds more like a design issue. Try Googling "macbook air" "core shutdown" or "macbook air" overheat* and you'll see it's a common issue and somewhat easy to recreate... just push the CPU/GPU very hard (~100% CPU use) for about five to ten minutes, or much faster if you put the MacBook Air on a pillowy soft surface like a bed. Motion video that drives the CPU/GPU close to the maximum seems to be the most common culprit. When the employees in the Apple Store were trying out things to recreate it they got a MacBook Air to do it playing a seven minute YouTube clip full-screen!
They offered to replace my logic board, but the fact that the MacBook Airs in the store had the same issue led me to believe it wouldn't help. Spending $10 USD buying CoolBook, however, has solved this issue for me completely, although I can completely understand why Apple has not incorporated CoolBook into OS X. Namely, you "tune" CoolBook by undervolting the CPU until your MacBook Air crashes! Then you add a little voltage and run a program to push the CPU hard until you find the lowest voltage that's completely stable... and that definitely varies a little bit unit to unit. For my MacBook Air, that was 0.9V up to 1.4GHz (1.0375V Apple factory default), 0.925 V for 1.6Ghz (1.1V default), and 0.9625V for 1.8GHz (1.15V default). With those values, I also got the unintended benefit of somewhat longer (~10-15%) battery life too.
To help quantify the figures.
When using just apple mail and firefox on my 10.5.2 machine, the cpu temperature would hover around the 55-57c mark. The fan speed would usually be between 4000 - 6000. I am a photographer and use aperture on my air when i'm out in the field. Normally, the cpu would be around the high 70s with the fan constantly in the 6000 mark.
With 10.5.3, same programs running, my cpu is 45-47c and the fan is 2500. When using aperture, fan speed still hasn't risen above 2500 and cpu temperature is 55.
I've noticed that the machine boots up from scratch much faster than it did before too.
(ps I have never had coolbook installed.)
When using just apple mail and firefox on my 10.5.2 machine, the cpu temperature would hover around the 55-57c mark. The fan speed would usually be between 4000 - 6000. I am a photographer and use aperture on my air when i'm out in the field. Normally, the cpu would be around the high 70s with the fan constantly in the 6000 mark.
With 10.5.3, same programs running, my cpu is 45-47c and the fan is 2500. When using aperture, fan speed still hasn't risen above 2500 and cpu temperature is 55.
I've noticed that the machine boots up from scratch much faster than it did before too.
(ps I have never had coolbook installed.)
Also seeing promising temperatures and fan speed after 10.5.3. I actually watched something on hulu.com without the fans going crazy.
Well, I take that back.. after about 20 minutes.. the fans went up to 6200.. Now we'll see how long it takes them to come back down....
Well, I take that back.. after about 20 minutes.. the fans went up to 6200.. Now we'll see how long it takes them to come back down....
I've yet to notice lower temps since 10.5.3. Granted I am running CoolBook and didn't use the MBA much after applying the update, but the little I did use it the temps were at their usual spot.
Dear,
I used skype with video today for more then 3 hours, and didn't had any issues. The fan start to turn on sometimes, but I had no extreme heat issues and certainly no core shut down. In general I have no problems at all with my MBA. Not with heat and not with core shutdown. I watched HD video trailers without any stop or issue. I do heavy photoshopping without any problem.
I have the 1.8Ghz./SSD version. Would that makes the difference?
With kind regards,
Bas
This doesn't sound right to me. Every heat sink I've ever seen uses fins, etc, to create more surface area which equals more heat dissipation. I would think that fins would allow the fan to be more efficient in that the same airflow would carry off more heat. I don't think that the fan is moving so little air that the airflow is saturated with regard to heat potential.
I think lack of fins and mass is the primary reason the heatsink sucks - and cripples the entire otherwise beautious machine.
Have I mentioned I love my MBP? Has fins you know. Lots of 'em.
But look at how thick your MBP is compared to how much space there is for the MBA to cool itself. Obviously, more surface area = better heat dissipation, its simple physics, however, in the air's case, you're actually blocking the air flow, therefore, trapping in the heat, making heat dissipation extremely inefficient. Right now, when the heatsink is on the laptop, there is approx 0.5-1.5mm, maybe less clearance between the heatsink and the bottom enclosure. Adding any type of fins would be restricting the air flow, therefore, not helping in heat dissipation.
The main reason for the overheating is:
1) the heatsink is aluminum, not copper
2) with extremely small space and clearance levels, it is extremely easy to block the vents
3) earlier models have the apple's overusage of thermal paste problem.
Maybe you're in just complete denial and truly belive that your macbook Pro is actually a macbook air.... did you read the Japanese properly when you checked out?
Good Morning from Germany and sorry for my broken english,
I've just installed 10.5.3 yesterday and what should I say? Ahhhhh...
I had the core shutdown problem at the beginning with 10.5.2.
With using CoolBook and Fancontrol I've solve this problem. My Air runs on a 20" ACD. Before using CB one core shuts down after about 5 - 10 minutes.
Since 10.5.3 this issues came back.
First, as mentioned in some topics here, CoolBook was deactivated. I activated it again, but after 5min one core shuts down. CoolBook was definetly running. Temperature was about 65° C. Nothing spectacular...
What I want to know now, this issue with the core shutdown only appears when my is running on the ACD (Air is closed). When the Air is running alone, the issue happens only for a short time, after 10 second the second core was enabled. This won't happen when it runs on the ACD.
I think this problem is for a service provider, not?
Does Anybody runs his Air on an external ACD or something else?
Does these of you have the shutdown problem again with 10.5.3?
I've just installed 10.5.3 yesterday and what should I say? Ahhhhh...
I had the core shutdown problem at the beginning with 10.5.2.
With using CoolBook and Fancontrol I've solve this problem. My Air runs on a 20" ACD. Before using CB one core shuts down after about 5 - 10 minutes.
Since 10.5.3 this issues came back.
First, as mentioned in some topics here, CoolBook was deactivated. I activated it again, but after 5min one core shuts down. CoolBook was definetly running. Temperature was about 65° C. Nothing spectacular...
What I want to know now, this issue with the core shutdown only appears when my is running on the ACD (Air is closed). When the Air is running alone, the issue happens only for a short time, after 10 second the second core was enabled. This won't happen when it runs on the ACD.
I think this problem is for a service provider, not?
Does Anybody runs his Air on an external ACD or something else?
Does these of you have the shutdown problem again with 10.5.3?
I haven't really noticed cooler temperatures with 10.5.3 on my Air but I have noticed that it stays at normal operating temps (48-58 degrees) longer when watching videos and takes longer for the fan speed to ramp up to 6200. I have also noticed that once at high temps, (80+ degrees) that it cools down quicker once high-intensity aps are closed. It's a little bit of an improvement I am happy to have.
I'm curious if the cooler temps are a result of Apple optimizing how the OS handles certain programs? Flash is notorious for causing extremely high CPU utilization in Mac OS. Anyone take a look at that?
So even if you're 100% right it's still a dumb-ovation design since it doesn't work.
The MBP is only 1/4 in thicker. It's not that much if the computer actually works.
I don't actually mean cram in fins where there is not room and have them not work. I mean add some fins in some way so they DO work. For example, the MBP has fins AWAY from the CPU with heat drawn by for lack of a better term a heat pipe. Heat pipe the stuff over to some fins on one side and position the fan so it blows over the fins.
Actually I think that 0.76" is plenty for a few fins. I think just that Apple curves the MBA too quickly "up" in the back. If it stayed the max width a little longer it could put some fins in that area. I don't think squaring out the back would have crippled the precious thinnovation.
