I have my HFM+ stats page show the "effective" PPD, the 2684 was actually running at a much lower TPF( around 19:37 for a PPD of 70.5k) but because I lost 4 hours of folding time(due to the power failure) my "effective" PPD is/was much lower(the 60k PPD as seen on my stats page).wow, thas a lot of dust man. it seems your box is running about 60k PPD again (from the folding client summary thing in your stats page) but that's a terrible 2684.
I was contemplating doing the same exact thing.. but purchase price$/PPD its better to build a few 920 boxes. Coolness factor goes to the dual box of course.
I was liking the PPD a lot at first too, but then I noticed the GPU3 client alone puts my Q6600 at 20% usage. I'm guessing newer high end procs should take a noticeable hit as well.Hot damn!!!!!! This is actually better PPD than I was getting with my 275.... still on the first WU, but it sure as hell is looking promising!!!!!
Temps are well within spec (sub 60c @ 100% fan), but this is also without the background SMP2 running, so that would probably have some affect on PPD.