I think this thread, along with the single-core Opteron database thread, should be sticked to so people can get the information they want. Nowadays there are a few retailers that disclose the stepping information.

Oteron 170 CCB1E 0550VPMW
DFI NF4 SLI-D
Generic Samsung PC2700 DDR (TCB3) 512MB x 2
Thermaltake Big Typhoon (Open-air testbed, Ambient temp 15C/60F)

2900MHz@1.52V

<a href="http://imageshack.us"><img src="http://img504.imageshack.us/img504/2923/2900stable15ij.jpg" border="0" width="1600" alt="Image Hosted by ImageShack.us" /></a>
<a href="http://imageshack.us"><img src="http://img72.imageshack.us/img72/1906/2900stable25vg.jpg" border="0" width="1600" alt="Image Hosted by ImageShack.us" /></a>