Fan noisy - X61 / TPFC.62 / Rightmark CPU clock utility...

Dear all:
Few questions...thanks in advance for your kind answers.
I have a Thinkpad X61s - machine model - 7668CTO. After upgrading to Windows 7 I can hear the fan loudly whirring. The machine is 3 years old and out of warranty.
Is the fan reaching the end of its life? Anyways to determine? How easy is it to replace the fan?
I tried to find the part number from Lenovo website but 'the fan' cannot be found. Found few sellers on Ebay...did anyone go that route? Do they sell the right part?
I downloaded TPFC.62. Set to Manual mode. The fan runs @ 3476 RPM...sound is less now. Is it safe to do this? Is there a recommended setting for X61 fan speed?
I also downloaded the Right Mark CPU clock utility...any recommended settings to reduce the CPU load (throttling) so that the fan has to run less/slower?
Any other suggestions?
Thanking you.
Moderator edit: Masked serial number to prevent misuse.

it is probably not a good idea to run the fan at the mode 7 speed all the time.
You can get the fan from ebay, since there are not many sellers in India that stock these parts.
The fan removal on the X61s can be done, but it is slightly tricky if you never done it before.
Here is the hardware manual that shows you how to do it:
http://www.lenovoservicetraining.com/ion/X60/index.html
Regards,
Jin Li
May this year, be the year of 'DO'!
I am a volunteer, and not a paid staff of Lenovo or Microsoft

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