I called Dell support about my hot CPU issues. They offered to send a new heat sink + fan assembly, or a new system. I picked the second option, although they said it may be a month before I get one.
I guess I will play with other stuff in the meantime.
I now have ATI 9.12 drivers installed, with Flash 10.1 Beta 2. When I start an HD stream from youtube, my 6850e + 4330 system shows 100% railed CPU usage in Coretemp. The video freezes for about 1 minute, and then the video starts. CPU usage drops to 40% or lower.
Is this normal? What performance exactly should I expect from the 6850e as a CPU?