FAN AND CPU CONTROL:
There are two good applications to control fan control - AA1 fan control (google it for links) and A1CTL. However, only one controls the CPU speed too (A1CTL)
I recommend everyone use A1CTL as it is a much more powerful utility. It allows you to set when the fan is off, when the fan is on low (AA1 doesn't allow this) and when the fan is on full power. Alongside this, it also allows CPU throttling - so that when you are on battery power it will restrict the CPU to 800Mhz (highly recommended). This results in the advertised 3 hours battery life! It also allows you to turn on and off Aspire One components and fiddle with the screen settings (for those that really need more than 600 pixels. Oh, and interestingly it fixed the HDD clicking sound some (including myself) have seen on some of these laptops (its due to poor hdd memory management and can be disabled with this app).
Firstly, A1CTL has a homepage at
Noda’s Dev Blog - you can download the application at
http://noda.free.fr/dev/a1ctl_v0.4.rar ... you'll need winrar (
WinRAR archiver, a powerful tool to process RAR and ZIP files) to open it - and extract the files to c:a1ctl
Once downloaded, you'll need to install this runtime:
http://www.microsoft.com/downloads/...98-51D0-41C1-BB14-64662F5F62FE&displaylang=en
Now, try running c:a1ctla1ctl.exe - if it gives you a .ocx error, follow the instructions here:
http://www.majorgeeks.com/faqshow.php?id=8 - after registering the .ocx file you'll be able to run a1ctl.exe
Now, it will ask you to patch the ACPIEC - i cannot remember what this does but I think its a good thing (read more on the net - you can always undo it later). Once the application is running, click on it in the system tray, and choose Configure.
Here you can set all the fan speed temps etc... I am currently using stop under 55c, slow at 60c and full fan at 65c. Most people will tell you its safe to allow the machine to run up to 70c - its your call!
Also, you can choose to restrict the CPU to 800Mhz when on Battery - to do this, choose 800Mhz when on battery power, and Dynamic when on AC power. Dynamic will allow the system to go to 1.6Gz when an application needs it - however of course it uses more battery power!
Cheers