We strongly recommend using Tesla products for computing in a cluster. Tesla computing products are specifically designed, built, and stress tested for cluster computing. GeForce graphics cards are specifically designed for consumer graphics and are not designed, tested or certified for cluster computing and thus are not supported in this configuration. The best solution is to use the 1U rack-mountable unit, which includes features optimized for cluster computing, including larger memories, system management software for the data center, power management in the unit, and stress testing for cluster computing. See the following link for more information.