all the latest driver, cpu cooler is a zalman 9700 which i have just bought, the previous cooler was the stock amd cooler, and the results were the same for both.
i also used driver cleaner to remove all the ati drivers and then downloaded the latest cats off the amd system
all the parts work fine in my shuttle, and the psu tests ok.
with the list that dfi reccomend it seems that they all want bigger PSU's
http://www.diy-street.com/forum/showthread.php?t=73137