On Fri, Feb 21, 2014 at 3:56 PM, Munir Nassar <tclug at beitsahour.net> wrote: > The problem is most likely twofold, > 1. Space, modern GPUs are big and bulky, mostly due to the heatsinks. > 1.5 heat dissipation due to the space constraints. > 2. power, most server platforms are not equipped with the additional > power output(PCIe power rails) to support a GPU. I recently had an R620 apart. Munir is correct, there may not be enough room for the heatsink in the PCI-e slot. There is definitely no where for the heat to go. If you opt for the 10Gb onboard NIC, you'll see it has a heat pipe. If a NIC (of all things) needs a heat pipe, I can only imagine what a GPU would need in the confined space. Brian