Answered: Can I use one CPU in a dual processor motherboard?
Amazon.com: SHANGZHAOYUAN X99 Dual CPU Motherboard LGA 2011-3 Server Motherboard for Intel i7 5th/6th Gen Xeon E5 V3/V4 Series Processors (E-ATX, 8*DDR4 ECC Max 256G, 2*NVME M.2, SATA 3.0, PCIe 3.0, 2*Gb
X99 Dual Cpu Motherboard Lga 2011 V3 2011-3 Xeon 8 X Ddr4 Memory Qual Channel Dual Pci-e Sata 3 Dual M.2 Nvme Support E5 Series - Motherboards - AliExpress
Early AMD Zen Server CPU and Motherboard Details: Codename 'Naples', 32- cores, Dual Socket Platforms, Q2 2017
Can You Use a Dual Processor Motherboard For Gaming And Is It Worth It? [Simple] - YouTube
X99 Motherboard Dual CPU LGA 2011-3 Dual NVME M.2 Dual LAN 8*DDR4 RAM SATA 3.0 | eBay
Amazon.com: MACHINIST X99 Dual CPU Motherboard, Intel (5th/6th Gen) LGA 2011-V3 Computer Server Motherboards (E-ATX, PCIe 3.0, DDR4, Dual LAN, Dual M.2, SATA 6Gb/s) for Intel Core i7, XEON E5 V3/V4 Series
Atermiter X99 Dual CPU Motherboard LGA 2011 v3 E-ATX USB3.0 SATA3 With Dual Xeon Processor With Dual M.2 Slot 8 DIMM DDR4 2011-3