When I first saw your name I got really excited 'cause I thought it said 'Madness.'
Then I would have proceeded to post something like this:
"This is madness!" "Madness? This ... is ... SPARTAAA!"
But Madoness is cool, too.
Hey Madoness. Did you try the Arch-wiki already? It's really good at getting your stuff to work. Otherwise, for compiz you must have a hardware-acceleration-able driver for your graphics. That means installing them (so they exist, and your graphics support that) and telling X to use them. Now in nowadays Archs' X, it works without xorg.conf probably, unless you created one. I don't have a clear solution for you in short, i suggest you check the Archwiki again (for X, your graphics card/chip and compiz), and/or you come to irc (to our channel, or to #archlinux on freenode, they are, when you ask nicely and show will to learn, helpful there).
About the fan-thing, i dunno, mine always worked. Same advice as above then.