Tecra M5 - Fan is noisy and constantly on

I've got a new Tecra M5, to replace an M400...the M400 at first had a very noisy fan but Toshiba provided a BIOS update to reduce that, which was good!
The M5 doesn't seem to have that luxury, the fan is constantly on and i know that the purpose is to keep the system cool.
But from experience i know it shouldn´t have to be this loud. Does anyone experience the same problems or know of a fix?
The powersaver tool doesn;t seem to reduce it all and i've noticed that couple of options are greyed out and disabled now.

Hi,
I noticed the fan behviour after updating from 1.70 to 3.20 to run vista, the fan noise was really annoying so i tried downgrading to 1.70 which obviously didnt work.
I think it was a combination of BIOS update and Vista making the FAN run constantly.
I got my laptop back from tosh last friday, they have replaced the system board and cooling fan, and the bios vrsion is 1.70.
At the moment my laptop is running very quietly, (the way i want it), its on battery, if I load an application that demands from the system it will of course run the fan to keep the system cool.
this all stems from when i had the M400, when i first got it the fan noise was like a JET, and put me off so much, since my m200 ran quieter it was hard to adjust, i checked toshs BIOS updates for the M400 and they had released a BIOS update to keep the noise down, which was amazing and kept me happy!
the options that are greyed out are
(1) CPU control method - which is set to AUTO
(2) CPU Processing speed - which is set to Level 3-6
these options were adjustable after a factory reset and after a few reboots it greyed out.
I hope that new BIOS update (like it did for the m400) will keep the noise down.

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http://eu.computers.toshiba-europe.com > Support & Downloads > Download Drivers
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****Please click on Accept As Solution if a suggestion solves your problem. It helps others facing the same problem to find a solution easily****
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Quote from: Bernhard on 30-September-12, 13:50:46
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I have had a Toshiba Tecra M10 for a few days now, and compared to my previous laptop, I notice a very different behaviour of the fan. The fan of my old Satellite Pro L10 used to be turned off unless the system really got hot. This was around the 55 to 60C. But now, with my Tecra, the fan starts running upon system start and never shuts off. This happens even on a cold start. It looks like the BIOS triggers the fan, as it did also happen during the installation of Windows Vista and Windows XP. This is definitely not OS-related. Even when I clock the CPU back to 798 MHz and set the cooling method to optimize battery life, the fan runs and runs.
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Hi,
Thanks for your reply! I'll answer your questions below, hopefully this will save me from sending the notebook back to the reseller...
The BIOS-version that was preinstalled on the machine was v2.00, and this seems to be the latest and greatest. (I looked it up on the Dutch Toshiba website.) So I don't think I can solve the issue that way.
And about the fan speed, it is constant until the internal temperature rises. A basic scenario would look something like this:
- You turn the PC on, and the fan starts to run while the Toshiba-logo is displayed. That's not too weird, some of my previous computers did that as well.
- The Windows XP bootscreen pops up and the fan maintains its speed. This is not the maximum speed, perhaps 1/4th or 1/3rd of it. But as the computer is sitting in a room with a temperature below the 15 °C this really shouldn't be necessary.
- Windows is ready to go and just displaying the desktop. After 1 minute the LCD-screen and the hard drive power down to maximize battery life, but the fan keeps on running.
- After a while I start using my PC to convert some MP3s or to create some highly compressed RAR-archives. During this process, the fan starts running faster. The longer you use the computer intensively, the faster the fan will spin. So it definitely is responding to heat sensors.
- After the heavy work is done, te fan quickly slows don, but never stops completely. It will only slow down till that "stationary" speed.
- When I shut down the computer, the fan stops running about half a second before the screen goes black. So basically, the fan runs when the computer runs, kind of like a desktop PC would do.
As my computer is not even a week old, this can't be dust and debris that's causing the problem. And the temperatures are not that high either. Is there any Tecra-user (A-series or M-series) who can confirm this odd behaviour?
Thanks for the help!

Tecra M5 - Fan is noisy and constantly on

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