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I have a Dell Inspiron Q17R with two graphic cards and I noticed that it is overheating. I installed Bumblebee, Jupiter and Flashblock, and I followed this guide as well, but it still got up to 74C.

Is there anything more I can do? It still doesn't really seem to be working well and the fan keeps spinning really fast.

After performing the following test:


in the terminal, this is what I got:

Adapter: Virtual device
temp1:        +75.0°C  (crit = +100.0°C)
temp2:        +75.0°C  (crit = +100.0°C)
Adapter: ISA adapter
Physical id 0:  +68.0°C  (high = +86.0°C, crit = +100.0°C)
Core 0:         +68.0°C  (high = +86.0°C, crit = +100.0°C)
Core 1:         +65.0°C  (high = +86.0°C, crit = +100.0°C)

it doesn't look good.

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Laptops normally don't have much room for heat to escape, the best you can do is use less intensive software if you want to keep it from heating up so much, or if you want to go overkill make a custom case fort he hardware. – user88311 Jun 28 '13 at 14:19
Didn't really understand the second part :P – mati Jun 28 '13 at 14:21
@mati Have you cleaned the insides of the laptop? – Ramhound Jun 28 '13 at 14:40

First of all, those temperatures are not that high, compare each value to the critical (crit and high). Modern systems often run at temperatures much higher than what you may be used to.

That said there are a few things you can try:

  1. Clean the laptop. At least try and clean the air intake and output grilles.

  2. Make sure the fan is switching on correctly. There are some dell-specific utilities for this, install i8kutils:

    This is a collection of utilities to control Dell Inspiron and Latitude laptops. It includes programs to turn the fan on and off, to read fan status, CPU temperature, BIOS version and to handle the volume buttons and Fn-keys.

    The package includes also a small Tk applet, designed to be swallowed in the GNOME panel, which monitors the CPU temperature and controls automatically the fans accordingly to user defined thresholds.

    The programs require the kernel module i8k.o which can be compiled from the package sources or found in Linux kernel 2.4.14 and later versions. The kernel module has been tested only on Inspiron 8000 laptops but it should work on any Inspiron and Latitude laptops.

    sudo apt-get install i8kutils

    You can then use i8kfan to test your fan. There also used to be a thing called dellfand but I can't find it anymore.

  3. Play with the different CPU governors. The governor is what controls the current clock speed of the CPU, if you have it set to, for example, performance, the CPU will always run at its highest speed and so will be hot.Try setting the governor to ondemand:

    sudo -i
    echo ondemand > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor

    You can check which governor is set with this command:

    cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor

    Available options are:

    • performance
    • powersave
    • userspace
    • ondemand
    • conservative

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