ANSWERS: 1
-
Early Xeons, circa 1998, used Sockets 603 and 604. According to Intel, most modern Xeon microprocessors (all 5000 and 7400 series models, and most 3000 series models) use Socket LGA 771. However, model 3400 uses LGA 1156, while model 3500 uses LGA 1356.
Source:
Intel.com: Intel Server Processors
Copyright 2023, Wired Ivy, LLC