Xeon E5420 2.5GHz S771 w/o Fan
Xeon E5420 2.5GHz Quad-Core Socket 771 (Dual-Processor) - 1333MHz FSB - 2x6MB L2 Cache - Intel64 - Intel Virtualization Technology (VT-x) - 80W TDP - Retail Box w/ Passive Heatsink - Socket LGA 771 / J
EPYC 7551P 2.0GHz 32-Core SP3 180W CPU (Tray)
1-Way CPU - 2.0GHz 32 Core - 64 Threads - 3.0GHz Turbo - Socket SP3 / LGA 4094 - 1-Way SMP - Supports DDR4-2666 Memory - 32 x 512KB L2 Cache - 64MB L3 Cache - 180W TDP - AMD-V Virtualization - Zen 14nm - OEM/TRAY w/o Heatsink & Fan