Are you looking for overclocking help? I have a 5850 getting 390 MHash with a mild overclock, running 69-70 degC. Be happy to help.
PS- same svojoe as on several car forums?
I bet you thats me! I have a 300d and a 240d!
How about yourself? sd's are nice rides!
I'm not looking for overclocking help specifically, but thats part of it. I don't have the time I need to tinker. I only get a few hours a week to maintain my rigs and it breaks my heart to be running inefficiently. Your getting 390 on a 5850 I'm getting something crazy like 40% less Mh/s out of mine. The tools I'm using just seem weak. (afterburner?)
300SD, as you can guess from the name.
Have you enabled unofficial overclocking in afterburner? http://www.overclock.net/amd-ati/641299-guide-enabling-unofficial-overclocking-msi-afterburner.html
Mine won't let me underclock the ram to 333 unless I open it, drag RAM to ~600 and core to 940, close AB, and reopen it and set RAM to 333.
Try 940/333 with phoenix + phatk 2.2, thats what I'm using for 390 on the 5850.