Yeah, you can quote all...I'm happy if my infinite trying could help someone
I make a mini guide in the end of this post, us it
Ah, if atitool, anyway now u see correct default clocks, still don't want let you oc the gpu....change drivers. Force x1600 drivers even though you've got a mobility 1600 (the are no big build difference) so atitool will unlock clocks. I did this with my imac (cuz windows see x1600 like a mobility, so i had to download latest catalyst, modify them - you can found on the web the mobility radeon vist driver mods - and choice an ati x1600) and with my HP pavilion too (yeah....the one with the shitty ati xpress 200 ^__^").
So (to oc mobility radeons & mac radeons):
1) Download latest catalyst/display driver
2) Mod them
http://www.driverheaven.net/modtool/
3) Install from Windows control panel (starting from a standard vga) display driver, searching them MANUALLY into the .INF that you can find into the modded MODDED ATI DRIVER - select x1600 or x1650 (no mobility)
4) Restart
5) Install Catalyst Control Center Modded
6) Restart
7) Install Atitool and check the clock, if it's strange (like 1400 mhz clock - impossible) go to settings and check, on the x1000 overclocking section, "use driver level clocking" (or something like this...anyway one of the first 3 option)
8) Before starting to oc, write somewhere clocks you see after the point 7 (should bee near 400/400), cuz the new "defaults" botton will go to 85.9/85.9....and this mean that if you unluckily click it a lot of articrafts will appear (because of too much downclock), but don't be scared...it's all ok, nothing dangerous, the problem is that it's hard to find something to click on the screen
. So, to be prepared, create a new profile with you real default settings and us it like defaults before starting to joke with clocks.
Additional info: Standard imac clocks are a lil bigger than macbookpro, cuz macbook is downclocked to have a better battery duration.
I hope this will help you...SORRY FOR THE REALLY BAD ENGLISH
P.S. The only bad thing is that there is not a mac version of ati tool