Intel socket 775 Xeon L5420 l5420 SLARP SLBBR Quad-Core 2.5GHz 12MB 1333MHz no need adapter, works on LGA 775 mainboard - AliExpress
Intel BX80574L5420P - 2.50Ghz 1333Mhz 12MB Cache LGA771 Intel Xeon L5420 Quad-Core CPU Processor - CPU Medics
lntel Xeon L5420 2.5GHz 12M 1333Mhz CPU equal to Core 2 Quad Q9300 CPU works on LGA775 motherboard - Price history & Review | AliExpress Seller - CPU TOP Store | Alitools.io
Intel Xeon L5420 QC (Low Power) 2.50GHz FSB 1333MHz 12M Socket LGA771 – Mega Micro Devices Inc.