Controlling the fan in MacbookPro 13”-any practical tips about it, please?

"...because there is information that cooling fans of MacBooks are not doing very good job…"

I don't know where you get your info from. However, the best place to discuss this would be the MacBook Pro hardware forums:
http://discussions.apple.com/category.jspa?categoryID=251
in as much as this really has little to do with Mac OS X v10.6 Snow Leopard > Installation and Setup.

First off I recommend not to fiddle around with the smc fan data .. It can go wrong but the solution is simpler than you imagine .. you jjst reset the smc and it's all fine .. If you feel you must go ahead then you can use smc fan control or istats menu that will sort you out ..
I myself use a product called zephyr from moshi .. which keeps my machine cool by looking hot 😉

you really shouldn't do that. the MB fans are set up by apple, who - you can bet on that - tested the best settings! also, I own a MB and the fans do a good job.

additionally, this would void your warranty.

no i won't

I get a chuckle, Apple waits for the temps to get way too warm, and then the fans kick in; that is how it "works" on Mac Pro and it is terrible way to go about cooling. So 90% do use the SmcFanControl 2.x that works fine for Mac Pro - and no SMC reset ever needed.

I've been using that for almost 4 yrs.

Macs do get too warm, and Core i processors have pushed the limits. Heat is hard on components which is why part failures and replacements for laptops are higher than desktops.

Hardware Monitor and Temperature Monitor Updates for 2010 Mac Pro and iMacs
http://www.bresink.de/osx/HardwareMonitor.html

Do you think your MacBook (Pro) is running to hot?
Give Fan Control a try then.

Some MacBook (Pro) are just to hot for daylong use. Fan Control adjusts the minimum fan speed depending on the current CPU temperature. For safety, it leaves the original automatic fan speed control intact.

My guess is that 10,000s of users have downloaded and run FanControl.
All it is doing is loading a new set of numbers, it is not touching (and can't) the System Management Unit.

Windows on Macs is even a worse issue when it comes to thermal sensors and fan control (almost zilch).

People have sat through 5 generations of Mac Pros and fan control is high on the wish list, but hasn't budged, it is easier to keep air and fans cooling (and use a couple profiles) rather than try to expel hot air afterwards. For Mac Pro all it takes is a small 300 to 400 boost in minimal fan speed to make a big difference.

here
http://discussions.apple.com/messageview.jspa?messageID=12293606&stqc=true

Follow this thread from beginning to the end and it might give you an idea on what the consequences of playing around with SMC can be 🙂

that doesn't change the fact that it voids your warranty. so I wouldn't do it. why not let apple do what they think is best for their product - and if it's not, exchange it for a new one.

word ! 😀
well said

Terve 🙂

each core has it's own diode and one general reading for the average of the two ..individual core readings give you the most precise reading since they can peak for a short time and the averaged reading might not reflect that

Your Mac is probably only overheating because you aren't letting it diffuse heat the way it's designed to. You shouldn't be using it on any soft surface such as a bed or a carpet. Its bottom surface is part of the heat diffusing system.

emaema wrote:
And another thing - does anyone know how SMC Fan Control measures the temperature?

There are thermal diodes in and around the cpu , gpu , harddisk , rams etc all around the machine ..
It just gets the readings from them ..

istats menu can read every single sensor on your machine and therefore can give a broader understanding of the temperature situation and why-how it's rising up ..

it also has the same functionality as smc fan control ..actually you can define presets of fan speed etc ..

I want to mention one more time that I think playing with your fan speeds is not only unnecessary but also dangerous 🙂

good luck

"Dangerous" is the correct word. There have been cases of overheated MacBooks catching fire.

I use my MacBook on my bed, so I use a cooling fan underneath it but even then I find it typically gets too hot for my liking.

I have used smcFanControl for a while now. Even just increasing the speed slightly seems to keep my system running much smoother. Haven't run into any problems with it.