Now if people have installed the latest bios 1.28 (which you should as it has a lot of good changes) you will see that the fan speed is quite loud and the fan is always on when connected to AC power.
I have modified this latest bios to change the Fan Settings on AC and Battery and also added additional settings in the bios menu as well as SLIC2.1 . In the bios menu, you just need to set the User access level to FULL to show all options. You can now choose ATI Only and Intel ONLY as well as switchable graphics. This means you can install the latest drivers for each graphics adapter and change in the bios when needed.
If anyone is using my old modified bios please upgrade to this new bios as my old bios has a few issues.
MODDED BIOS DOWNLOAD - http://www.mediafire.com/?qsn4aoovoba2kuo
ALTERNATIVE DOWNLOAD LINK - http://www.2shared.com/file/arRt9weV/BIOS_Acer_8371_128_Modified_Qu.html
Only use this bios on 8371 laptop.
These are the temperatures set for the bios:
(CPU TEMP)
Min Max FanSpeed
45C 50C 20% (You can't hear 20% fan speed)
55C 60C 40%
62C 70C 50%
72C 80C 70%
(Thanks to advan20092 from notebookreview and IXBT Forum for help with modifying fan table)
Let me know how people get on with the bios. You will notice a big difference in the fan noise on battery and it also doesnt turn on all the time when you insert AC adapter.