General Knoppix support for those who've read the FAQ at the Wiki
LOT QTY 2 of INTEL XEON 10 CORE E5-2690 V2 25MB 3.00GHZ CPU SR1A5
$139.99
E5-2699V4 Intel Xeon Processor 55M Cache, 2.20 GHz SR2JS CM8066002022506
$155.00
HP Z440 Workstation Xeon E5-1603 v4 QC 2.80GHz CPU 32GB RAM Quadro K2200
$79.99
Matched pair Intel Xeon E5-2667v4 SR2P5 3.20GHz, 8 core, 25MB Processors LGA2011
$62.95
Intel Xeon E5-2640v4 2.4GHz 10-Core 25MB 90W SR2NZ
$5.45
Intel Xeon E5-2680 V4 CPU 2.4~3.3GHz 14-Core 35M LGA 2011-3 R3 Server SR2N7 120W
$15.99
Intel Xeon E5-2667 V2 LGA 2011 3.3GHz 8 Core 130W 25MB 8GT/s CPU Processor
$14.99
Intel Xeon E5-2699 v3 2.3GHz 18-Core 45MB 145W LGA2011-3 CPU/Processor SR1XD
$40.99
Dell T7810 Workstation 1x E5-2603 v3 16GB RAM Nvidia QUADRO +cables
$120.00
Intel Xeon E5-2667 V4 SR2P5 (3.2GHZ/8-CORE/25MB/135W) PROCESSOR CPU
$29.89