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Low CPU usage, high RAM usage = High temp ?


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#1
Milnor113

Milnor113

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Hello,

I am running Linux Zenwalk on an old Acer Aspire 1300 laptop.

The fan has started running almost all the time. CPU temp quickly reaches approx 72 degrees Celcius and stays there even though CPU usage is low eg. < 10 %. However I only have 128 Mb RAM so RAM usage is usually 95% or more.

Can this cause high temperature ?

I have dissasembled the laptop and removed (a little) dust/dirt from the fan but without improvements.

Below is the output from $ top and $ cat /proc/acpi/thermal_zone/THRM/temperature:

top - 12:39:27 up 2:59, 2 users, load average: 0.04, 0.07, 0.13
Tasks: 75 total, 2 running, 69 sleeping, 4 stopped, 0 zombie
Cpu(s): 5.6%us, 1.3%sy, 0.0%ni, 93.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 109640k total, 106572k used, 3068k free, 0k buffers
Swap: 1028152k total, 37332k used, 990820k free, 30076k cached

[Processes omitted...]

$ cat /proc/acpi/thermal_zone/THRM/temperature
temperature: 72 C


Ideas and pointers appreciated.
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#2
Milnor113

Milnor113

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This problem is now resolved. I disassembled the laptop completely into parts removing all dust and dirt using a pincet and a vacuum cleaner on its lowest setting. There was not a lot to remove but apparently enough !
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