Oh yes, forgot that.
725/250, 725/300 with a range of different voltages from 1050mV to 1165mV.
I have 25 5850s ... best card out there.
Anyways. anything under 300 is gonna be hard for a 5850 on windows with AB. Stop using all that other crap and just use AB. Trixx sucks ass and CCC is stupid too.
1149 voltage, 950 core and 300 ram will get you a good 400 mhash.
If your PSU cannot handle that ... try 1112 voltage, 900 core and 300 ram.
If you STILL have trouble ... just do 1087 voltage, 820 core and 300 ram.