Re: Fedora 17 - CPU Fan Speed

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On 13.06.2012 14:43, Mateusz Marzantowicz wrote:
> On 13.06.2012 09:04, agraham wrote:
>> On 06/12/2012 06:52 PM, Mateusz Marzantowicz wrote:
>>> I've just installed Fedora 17 (x86_64) on my Dell XPS 8300 with Intel
>>> Core i7-2600 and I noticed a very strange behavior: CPU and/or
>>> motherboard fans are constantly working at very high speed which makes a
>>> lot of noise (fan speed is at the same level it was right after powering
>>> on).
>>> I previously had Ubuntu 12.xx and Debian 6 installed and no such fault
>>> was present. Is it really something so advanced to have the ability to
>>> reduce fan speed that Fedora devels are unable to accomplish in default
>>> installation of stable system release?
>>> I imagine, I have to download and install some additional packages or
>>> even patch and recompile the kernel but I can't find any info about this
>>> on the Internet. I'd be grateful if anyone could help me or point me to
>>> some solution before my fan breaks down prematurely.
>>> Mateusz Marzantowicz
>> There may be processes running that you don't need that are consuming
>> CPU or even some process hogging the CPU.
>> You may have some control of fan speed via the BIOS, not sure, also see:
>> Albert.
> Thanks for the reply. I'm now trying to identify which fan is noisy. The
> problem is that I already have latest BIOS update installed and week ago
> on Ubuntu 12.04 I had no such problem with fans going to fast. My load
> avg is 2.0 at max (3 kvms running but not so busy) and long term CPU
> utilization is below 5%-10%. The only difference is that previously I
> had AMD Catalyst driver installed for Radeon HD 5750 and now I'm using
> the default Open Source driver, so I'll be investigating graphics at
> first. I also noticed that video card is warmer than other parts of my
> set but it might be a false alarm. Thanks anyway for the reply.
> Mateusz Marzantowicz

Sorry for replying to myself but I've identified that it's the video
card fan (AMD Radeon HD 5750) and no other that doesn't slow down for a
moment. It's probably one of that advantages of Open Source drivers
shipped by default with Fedora. Sadly I'm unable to install latest
proprietary Catalyst 12.6 driver from AMD in Fedora 17 with 3.4.0 kernel
because of compilation error.

Mateusz Marzantowicz
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