SL35P Intel Pentium II Xeon 400 MHz Processor Unboxed OEM
BX80523KX400512 Intel 400MHz Pentium II Xeon Processor
x86 cpus' Guide - Intel Xeon - P6 Architecture
Pentium II - Wikipedia
These two MASSIVE 1000mhz Pentium 3 Xeon Slot 2 beasts just showed up today. Now I just need to find a motherboard that will run them. Any suggestions? : r/vintagecomputing