I know I can control the fan speed, but I desperately need to stop the left fan which is making unbearable noise. I'm travelling at the moment and cannot have it replaced until next week. Please advise
If you do stop the fan, you could use the processor preference pane to disable one of the CPU cores. I would also run the other fan at full speed all the time. That's assuming the computer will even start with the fan not working/unplugged.
This warranty does not apply:
(c) to damage caused by operating the product outside the permitted or intended uses described by Apple;
(d) to damage caused by service (including upgrades and expansions) performed by anyone who is not a representative of Apple or an Apple Authorized Service Provider (AASP);
(e) to a product or part that has been modified to alter functionality or capability without the written permission of Apple;
b. Limitations. The Plan does not cover:
(iii) Your use of or modification to the Covered Equipment, the Mac OS, iPod Software, Apple TV Software or Consumer Software in a manner for which the Covered Equipment or software is not intended to be used or modified;
As for processor preference pane, I probably need to be registered as an Apple developer to install it.