Don't remove the mark of "Ibk " on below right side of CPU.
Intel Xeon E3-1220 v5 Quad-Core Socket 1151 CPU Desktop Processor SR2LG 3.0G *km
Intel Xeon E3-1241V3 3.5GHz/8MB Quad Core Socket LGA1150 CPU SR1R4 *km
Intel Xeon X5460 SLBBA LGA771 Quad-Core 3.16 GHz CPU Computer Processor
Intel Xeon X3220 2.4GHz Quad-Core 8MB CPU (SLACT)
Intel Xeon E5450 3.0Ghz Quad Core 12M LGA 771 1333MHz 80W SLANQ CPU Processor
Intel Xeon X5482 3.2GHz Quad-Core LGA 775 SLANZ/SLBBG 12M 1600MHz CPU Processor
