HD4870x2 Working fan speed in here.

[unrealsword]

Hey guys I installed expert tool v4.0 (that supports hd4x line) and to my surprise it controls fan speed of the hd4870x2 as well!
http://en.expreview.com/2008/08/16/tools-update-experttool-v40-enable-fan-control-on-hd-48504870/
I gotta say though at 50% fan speed my idle temps dropped from 67c to 36. However at 50% speed I can't believe how amazingly loud it is. GTX280 at 80% fan speed sounded quieter then hd4870x2 at 50%!! At 100% my idle dropped to 26c but jesus christ it completely drowns out my Air Conditioner in sound!
Stock 27% fan speed = 1300 rpm
50% fan speed = 3230 rpm
100% fan speed = 4920 rpm.

 

[1erCru]

This is great but jeese why a minimum of 50%? Maybe they are playing it safe by limiting to 50% to avoid people locking the fan speed at too low a value?

I want my 35%

 

[Putz]

the auto settings in the ati default isnt bade, there pretty quiet at idle, and scale up when gaming, the 4870 never seemed to change

 

[myndcrime]

Works, but my 4870x2 sounds like a leafblower with the fan at 50%. Lowered temps to 56c at idle, though.

at 100% it sounds like a jet taking off, the loudest thing i've ever heard