See other posts before you, you're not the only one asking this.

You can't change this in boinc 5.4.11. In boinc 5.8.5 you can change it.

But this version is not stable yet!

http://boinc.berkeley.edu/download_all.php

Maybe there are some programms in the linux port to control the maximum cpu usage.

I hope this was enough information

Have you limited your cpu use in your device profile?

Your device profile

Try to limit your use there. Im on Debian and it works very well for me.
Now I have 100% of my cpu time with 48º C.

Alternatively you can look for settings into your motherboard bios to set the RPMs of your fan up.

Good luck!

If you are using gnome, try this packages (Debian names):
- sensors-applet (http://sensors-applet.sourceforge.net/)
- libsensors3 (http://www.lm-sensors.nu)

The first one is an applet for gnome panel and this is what I use.
The second one is the library which the first one depends on.

Good luck.

I'm also using Kubuntu (6.10)

Here is how i was able to control how much cpu time world community grid consumed.

NOTE : currently the fahlimit programs sets 20 PERCENT as the lowest amount of CPU usage you can chose.

my source : http://www.blowshard.net/offsite/wcglimit-0.6.c
my program : http://www.blowshard.net/offsite/wcglimit

My files may or may not work for you.

Step 1.

Download the source code to fahlimit - a program which limits cpu usage of the program folding @ home.

Main page
http://calxalot.homeip.net/downloads/

Source code http://calxalot.homeip.net/downloads/versions/fahlimit/0.6/fahlimit-0.6.c

Step 2.

Inside the source code change the code FahCore_ on the below lines to the first part of the program you want to regulate. In my case I change it from FahCore_ to wcg_. I'm running the world community grid which choses to name all it's processes starting with wcg_

This works out really great because it makes it easy to manage these processes.


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Step 3

At the shell / command line type in gcc -o cpuguard1 fahlimit-0.6.c
This should make an executable called cpuguard1.

If you get any errors it may be because you're missing required packages needed to compile with gcc.

Now with this executable :

./cpuguard1 -daemon -percent 20

With this program running any process with a name that starts with wcg_ will not be allowed to use more than 20% of the cpu.

You can do ./cpuguard1 --help to show functions included in fahlimit

You can use the following type scripts to load both things at once, the cpu limiting program and the client :

cd /home/YOURNAME//BOINC/
/home/YOURNAME//BOINC/wcglimit -daemon -percent 20
/home/YOURNAME//BOINC/run_client