works on LGA 775 motherboard Xeon E5420 Processor 2.5GHz 12M 1333Mhz close to Core 2 Quad Q6600 cpu - Newegg.com
Intel xeon E5420 cpu 2.5GHz 12M 1333Mhz 80W Processor Work on LGA 775 motherboard - Price history & Review | AliExpress Seller - RE Store | Alitools.io
44T1742 IBM CPU KIT INTEL XEON QUAD CORE PROCESSOR E5420 2.50GHZ 12MB L2 CACHE 1333MHZ FSB 80W FOR BLADECENTER HS21