my mbp 40f cooler!

[merc669]

but even at the 2000 RPM it is very loud, can we make like a 1500 RPM one?

Standard Fan Speed is Approx 1000 to 1200 RPM (Mine goes down to 992 a lot but hangs normally around 1000). If you are down to 1500 RPM you might as well not use the scripts. I am running mine at 3000 RPM and I cannot hear a thing. But then again all that working around aircraft and high rpm freqs probably cut my high-end off a little. But at 1200 to 1500 to me it would not seem to make much difference in temp.

Bill.......

 

[WorldIRC]

When we get the new script it'll be good. Tell the computer we want it to stay at 50C. Then it can do w/e the fan needs to do to keep that speed.

 

[atticus1178]

Standard Fan Speed is Approx 1000 to 1200 RPM (Mine goes down to 992 a lot but hangs normally around 1000). If you are down to 1500 RPM you might as well not use the scripts. I am running mine at 3000 RPM and I cannot hear a thing. But then again all that working around aircraft and high rpm freqs probably cut my high-end off a little. But at 1200 to 1500 to me it would not seem to make much difference in temp.

Bill.......

You using a Mac Pro?

 

[mikelawson]

Seems to be working....

I followed the steps, and my MacBook Pro 2Ghz (with 2GB RAM, 7200RPM 100GB drive) is running much cooler. I don't notice any fan noise so far. After being on and in use for two hours, my machine is running at a much cooler 98.6 degrees, and that's an amazing improvement. Hopefully nothing goes wrong with having a MacBook Pro that runs cool, which is right!

 

[Royal1k]

I'm running 3500 RPM and have experienced a noticeable difference in the temp of my 17" MBP. Unfortunately when I run CoreDuoTemp, the temp reads 72 deg. F regardless of how hot my MBP actually feels. This obviously isn't right...any reason that the proper temp is not being read?

 

[Fearless Leader]

while these do work in mac pro your only controling 2 of the 4 fans in the comp. look in the unrecomened section. The only reason its in their is thats too slow of a speed for the mb/mbp to be locked at.
I will look into setting a minimum speed and not a forced locked in speed.

 

[Fearless Leader]

I'm running 3500 RPM and have experienced a noticeable difference in the temp of my 17" MBP. Unfortunately when I run CoreDuoTemp, the temp reads 72 deg. F regardless of how hot my MBP actually feels. This obviously isn't right...any reason that the proper temp is not being read?

this is the temp of the processor(s) and not the ambient temp. of your computer.

 

[Royal1k]

Will CoreDuoTemp measure the ambient temp or will I need a different program for this?

 

[s06er]

Works on the Macbook

The code from Rokem does work very well on a 2ghz black Macbook. The fans also seem to function perfectly under more processor intensive applications. To test and see if your fan is functioning as it should, visit

http://www.macbookrandomshutdown.com/

Then visit the "Test Tool" link, download, and run the program. This will max out both processor cores and you will definitely start to hear your fans blowing. My laptop is running much cooler now. Thank you Rokem!!!

 

[s06er]

I'm running 3500 RPM and have experienced a noticeable difference in the temp of my 17" MBP. Unfortunately when I run CoreDuoTemp, the temp reads 72 deg. F regardless of how hot my MBP actually feels. This obviously isn't right...any reason that the proper temp is not being read?

My black Macbook has the same issue. I have no idea what the temperature is of my computer- only that it definitely feels much cooler.

 

[Royal1k]

The code from Rokem does work very well on a 2ghz black Macbook. The fans also seem to function perfectly under more processor intensive applications. To test and see if your fan is functioning as it should, visit

http://www.macbookrandomshutdown.com/

Then visit the "Test Tool" link, download, and run the program. This will max out both processor cores and you will definitely start to hear your fans blowing. My laptop is running much cooler now. Thank you Rokem!!!

I'm afraid something might be wrong with my MBP. After running the "Test Tool" at the above link, my cpu maxed out for about 15 minutes, but I never noticed the fan coming on although I could defnitely notice the computer temp increasing rapidly. I am running the 3000 rpm script. Any ideas?

 

[Yichen]

For me, I just need this script can permanently modify the MBP.
Anyone get a idea to do this?

 

[cLin]

Hrm, I ran the 3000 rpm script but for some reason when i run a video file or something that I would normally do, it would shoot up. Worst was today when it hit 90 degrees celsius, something normally my mbp wouldn't do. When Irevert back to default, it went back down to 70 degrees..anyone else have this problem?

 

[Avolition]

I was thinking about making a program that does this, but then the chance of screwing up your computer is even greater

there are two out. speed it and some other made by some french people. i havent tried it out because i didnt find sufficient info to satiate my curiosity. im dead scared of ruining a 2k$ laptop.

 

[clincoln]

Fans dont come back on after resuming from suspend ?

I've been experimenting with Rokem's smc scripts, and they worked fine for setting the fan speeds.

But if I set the fan speed on my Macbook Pro to, say 3500, and then suspend, after i resume the session, the fans are switched off:

Total fans in system: 2

Fan #0:
Actual speed : 0
Minimum speed: 1000
Maximum speed: 6000
Safe speed : 1200
Target speed : 0
Mode : forced

Fan #1:
Actual speed : 0
Minimum speed: 1000
Maximum speed: 6000
Safe speed : 1200
Target speed : 0
Mode : forced

Is this normal? I'm speculating that this could be pretty dangerous, since the fans are forced into actual speed 0... so if you dont manually up them again (or reset them), they'll just stay off, eventually damaging your CPU.

Any feedback on this ?

 

[ckoerner]

Same here about a month back. Besides getting a whine free MBP my casing is noticeable cooler and the temps never go higher than 64 celsius.
It would go all the way to 74 before.
Maybe Apple changed the RPM setting on the new Logic Boards.

Did you experience a drop in temp after getting the new LB?

I'm much cooler than I was before the swap...Wait, that sounded wrong. My MBP runs about 20 deg cooler.

 

[s06er]

I'm afraid something might be wrong with my MBP. After running the "Test Tool" at the above link, my cpu maxed out for about 15 minutes, but I never noticed the fan coming on although I could defnitely notice the computer temp increasing rapidly. I am running the 3000 rpm script. Any ideas?

Okay, here's what I've got going on my black macbook and the script works flawlessly:

1. I'm running OSX v.10.4.8
2. I have the latest SMC Firmware update installed
3. My machine has a brand new heatsink and logic board (due to random shutdowns)
4. I copied the script exactly as Rokem has it posted at the bottom of page 3, post #71

I know it's short and sweet but I hope it helps.

 

[cpdmac]

auto

Rather do the following, it keeps it in automatic mode...

Do the following in the smc folder under Applications.

sudo smc -k F0Mn -w 2ee0
sudo smc -k F1Mn -w 2ee0


RPM/(Hex)
1000 (0fa0)
2000 (1f40)
2500 (2710)
2750 (2af8)
3000 (2ee0)
3500 (36bo)
4000 (3e80)
4500 (4650)
5000 (4e20)
6000 (5dc0)

 

[n8236]

Rather do the following, it keeps it in automatic mode...

Do the following in the smc folder under Applications.

sudo smc -k F0Mn -w 2ee0
sudo smc -k F1Mn -w 2ee0


RPM/(Hex)
1000 (0fa0)
2000 (1f40)
2500 (2710)
2750 (2af8)
3000 (2ee0)
3500 (36bo)
4000 (3e80)
4500 (4650)
5000 (4e20)
6000 (5dc0)

Uh, what? What do you mean automatic mode? And what exactly do those two commands do? I'm not following.

 

[n8236]

From what I understand, if the machine is rebooted/shutdown/suspended in any sort of way, the script will be terminated and returns to default.

I'm guessing the reason why some ppl are experiencing zero fan activity after suspend is because the system the cooling acquired from the scripted rpm has been met, thus no fan activity until necessary via default.

 

[vamp07]

just wanted to write in that i will no longer be testing my method of controling heat and will be moving into the direction of making a gui for the smc program. I find it much more direct and your chanhges actualy make sense anyways my current idle temps on my mbp are 82-90?f and 28-32?c.

Why give up on your original method? It seems like you have much better control over when those fans kick in. You could actually set at what temp you want the machine to try to keep itself if we could just understand the settings better.

 

[arnehole]

Anybody had any effect on a PB?

Hi there. I'm new to the forum but have read this thread with great interest.

The thing is, I'm on a 12" PB and I'm actually interested in doing the opposite of all you MBP/MB people. My PB fan hits in when my HDD temp hits 45.8 C, which it does after just 15 mins of light usage (e.g. surfing with safari), and I know that this is NOT nescesarry, so I would like to make the fan wait till, say 60 C.
Now, I know the smc thing wont work on a PB, but I tried adjusting the obvious parameters in the to info files, as suggested first in this thread, but with absolutely no effect.

Did anybody get any of this to work (in any way) on a PB?

Thanks.

 

[the rock]

A similar method is being discussed on Apple discussions:

http://discussions.apple.com/thread.jspa?threadID=680067&tstart=0

 

[crispy]

A nice graph to show real temperature changes
To load the cpu I ripped an 11 minute DVD using Handbrake and encoded to H264.
The first temperature plateau is with the fans on default. Temp max 86 degC.
The second plateau is with the fan at 4000 rpm. Temp max 76 degC.
The third plateau is with the fan at 5000 rpm. Temp max 66 degC.

I think I will use this code when I am doing serious cpu loaded work, eg video encoding. otherwise I will leave it on default.

thanks for the code. I look forward to a preferance panel!!

 

[maycontainnutz]

my MBP does get pretty hot but the fans working... i'm tempted but i'll wait on the sidelines also to see if anybody else has it working well