==Double GPU Server Build==
[https://pcpartpicker.com/user/kyranadams/saved/gDzFdC PC Partpicker build]
*[https://www.quora.com/Can-I-double-the-PCIe-lanes-in-a-dual-CPU-motherboard This article] says that it may be necessary to get both CPUs to get all of the PCI lanes
==Double GPU Build==