im going to find that istorya thread that says 4gtx295 cant be fitted in one computer later.
i thought that was fake.
anyway.. here it is.

21 gtx295, card 22 and card23 was installed and can be found at youtube here
YouTube - Atlas Folder - GPU Folding Farm HOWTO - PART 4
quote: "it will be hard to imagine a better use for such a gluttony of high powered videocards"
Folding@Home User Crams 23 GeForce GTX 295 Videocards into a Single Server | Maximum PC
i found their main website here -
Fighting Huntington’s Disease with Folding@Home | Atlas Folding
how does it work?
from what ive read - they made a network shares, then run a batch that will run on each gpu.
instead of running on a cluster of computers, its a network of computer running at each of computer's gpu's.
View topic - 19 GTX295s - Maximum PC Forums
and if you think that's impressive, there's another setup -
Phase 2 of Atlas Folder: 32
additional 9800GX2 GPUs purchase from nitteo of team overclock.net!!!
overkilling overkillers by thhhhhhaaaaaaaaaaaattttttttttt much!
here's the final specs:
Atlas Folder is:
23 nVidia GTX295 (46 computing units)
32 9800GX2 (64 computing units)
14 MSI K9A2 Platinum motherboards
14 AMD dual and quad core processors (9950 and 5050e)
28 Gigabytes RAM
Microsoft Windows XP x64 on all
2 Middle Atlantic Products Slim-5 19″ racks
14 Middle Atlantic Products Clamping Rackshelves, model RC-4