Tecra S11 - High Speed Fan

Hi guys,
I need some help on a issue that really puzzle's me.
After I tried to make a bios update to the ultimate (February 2012) version, within windows 7, I've obtained an error message stating that I had no permission to make the update. Since then, the fan starts to rotate in high speed, as soon as I start the computer, just after the logo display.
Since then I've upgraded the bios using the Dos procedure, but the proble persists. It performs like a fully fledge high capacity server regarding the noise fan.
How can I troubleshoot this and solve it?
Thank you.

Hi MasterG,
Thank you for your answer but that is not the problem.
Than Fan rotation starts at Post level, long before the Os kernel starts to execute.
Another starnge thing is that when I put the pc on sleep mode, when it awakes the fan is stoped. If I restart the Pc the symptom restarts.
I tried to update the bios to ver 3.30 using BIOS330_EC200.exe
It could be a EC/KBD problem. When executing from Win7 it states:
BIOS Version : Current Ver.3.30 --> Updated Ver.3.30
EC Version : Current Ver.1.90 --> Updated Ver.2.00
There is need to update EC.
<EXECUTE THE UPDATE>
Error: Preparing to update was failed.
You have not given permission to execute the update.
Really there's a problem with the update. Then only way I could do the bios update was preparing a Dos usb device and boot executing Chgbiosf BIO0076T.com and it worked.
when I tried to update the Ec using Chgbiosf EC72V200.BIN it says that the file does not exist.
So, this is the status of the problem. I don't know if anyone can help, but I fear that th Tecra S11 will blow up anytime soon if this continues.
Thanks.

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