Complete, ok, here goes:
Lian Li PC 76 case
Supermicro X8DA3 MB
2-X5570 Nehalem EP chips(Gainestown)
2-TRUE 1366 heatsinks
6x1 gig Kingston DDR3-1333 ECC Registered memory
EVGA 260GTX vid
PCP+C 750w PSU
4-73 gig Seagate 15.4k SAS drives in Raid 0
Seagate 320gig Sata for data storage
OS is Windows XP 64 bit

I'm going to guess neither since it's running in RAID 0.

Movieman - I bet you pull some serious numbers with those rigs!
About a month ago I read your review from last November of the 965 on XS (great job, I appreciate your efforts) and that was part of what spurred me on to get a 920. I never built a PC before but they are just so darn easy to OC I now have, for me anyway, a monster cruncher @3.857 and was able to get rid my old P3s. I am now saving my pennies so I can refit my old P4 with i7 guts. I have thought about trying out <gasp> GPUGrid but don't want to mess with a newer version of BOINC that will support <another gasp> CUDA unless someone already has and is not having problems with WCG WUs. I was going trying to read up on this on XS and was just about to post a Q about it but they are still down. Do you know of another place I might find those kinds of details?

TIA - Steve

Those are some impressive sounding rigs. Which gives the best points per watt though? I've been toying with the idea of flogging my Q6600 later this year and getting a new machine.

With the cost of electricity here I reckon with careful shopping and good power efficient component choice I could build a machine where the reduction in power consumption would offset much of the upgrade costs over the longer term. As of todays date 1Kw is costing me the equivalent of 26 us cents.

Just a guess but I'd think that at 50,000PPD the Gainestown rig has to be the best on elec.
This has 2-130w cpu's in it.
The sossaman machine has 2-31w cpu's but only makes app 7500PPD.
It is what I call the perfect cruncher for people who don't want to crunch.
It draws app 117W at 100% load, cpu's at 34-36C in a closed case at 100% load and makes no noise and gives off little heat.
Then add that it is cheap to build.
There are two ways that we can beat these diseases.
Either involve massive computational power.
We can do it with the "few" of us with our high end machines or we can "think outside the box" (Gawd, I hate that term) and imagine millions with a single dedicated machine to the project.
That is what I saw in "Sammy"
A machine for those who would say "I don't want a machine that sucks elec like a drunk at a free booze convention", doesn't heat up their houses in the summer and runs quietly and might demand a once a year cleaning of the fans.
Like the add, set it and forget it.
The key is in the parts but it's not for those people here.
You folks are already "sold" on what we do.
It is for those that aren't.