Used Intel Xeon E5 2689 LGA 2011 2.6GHz 8 Core 16 Threads CPU Processor - AliExpress
For those cautious of parts from AliExpress. I have received both of these from the same seller, RE store. Both post, both identify correctly, all cores work and got them for 32
Used Intel Xeon E5 2687W V2 Processor 3.4GHz 25M LGA 2011 SR19V E5-2687W V2 CPU - AliExpress
Used Intel Xeon E5 2690 V2 Processor 3.0GHz 25M Cache LGA 2011 SR1A5 server CPU - AliExpress