this thread is a little old but anyone able to answer the OP's original Q would help out a lot, specifically..
For THOSE WHO KNOW the answer to this question, I aswell would really appreciate knowing:
1) the terminal line to set max fan speed for each of the MP's 6 fans.
2) a list of RPM's converted to hex format for the command line (let us say 300 - 1000 going by 100's)
3) which smc version to run the term commands with?
Many people may be tempted to suggest different workarounds or the danger of doing this, but let's just try (as hard as it may be for some) to only focus on the specific question above, thanks for any who reply!!
I use the smc included in SMCFanControl.app/Contents/Resources/. I copied it over to /usr/local/sbin. Everything has to be done as root to modify smc.
To set the auto maximum fanspeed for a MBP as listed via smc -f use(where X is the hex converted number you desire):
Code:
#!/bin/sh
#
/usr/local/sbin/smc -k F0Mx -w X #left fan
/usr/local/sbin/smc -k F1Mx -w X #right fan
ex: smc -k F0Mx -w 4e20 #left fan 5000rpm max
Save as FanMaxLimit.sh and chmod +x it.
F0 = left fan
F1 = right fan
Keep going down the list F0,F1,F2,etc for Mac Pro's 6 fans.
To manually force a static fan speed:
Code:
#!/bin/sh
#
/usr/local/sbin/smc -k 'FS! ' -w 0003 # manual fan selection
/usr/local/sbin/smc -k 'F0Tg' -w 60e0 # left 6200 rpm
/usr/local/sbin/smc -k 'F1Tg' -w 60e0 # right 6200 rpm
To set it back to auto fan mode use:
Code:
smc -k 'FS! ' -w 0000 #auto fan selection
Already converted to hex for you here:
0000 # 0 rpm
1f40 # 2000
2ee0 # 3000
3e80 # 4k
4650 # 4500
4e20 # 5k
60e0 # 6200
7080 # 7200
(FanSpeed x 4) converted to hex ex: 3000rpm*4 = 2ee0
or use(where rpm is desired speed): perl -e 'print sprintf("%X", (4*RPM))'
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To automate these settings, create a user daemon that loads a .sh file with one of the above options and loop it every minute since waking from sleep will reset it. You can use Lingon 2.1.1(free) to create the com.FanControl.custom.plist. that loads your FanMaxLimit.sh file like this:
Then click "expert mode" in the bottom right and add the following:
or
Create a root cronjob to run the .sh file every minute by typing crontab -e and pasting in:
*/1 * * * * /usr/local/sbin/FanMaxLimit.sh
Save and quit by press ESC > type a semi-colon and the letter x > press enter.
Then type crontab -l to make sure it's added.
