Can you pastebin your xorg log ?
I don't think you'll find anything enlightening in my Xorg.log since it does not contain anything fan/temp related, but I'd be happy to pastebin if someone explains how (I don't see a html editor control for that).
Go to http://pastebin.com (or any of the other pastebin sites; .ca, .de etc...).
You'll see text box on the web form.
Copy the xorg log from your system and paste it into the text box.
Hit "send" or "submit" depending on the site; you'll get back a URL.
Paste that URL here.
The options are enabled fine:
(II) RADEON(0): Dynamic Power Management Enabled
(II) RADEON(0): Force Low Power Mode Enabled
The xorg macros are required to build the driver. You need a certain xorg macros package, but you can build against just about any xserver. It looks like you already sorted that out though.