HP Processor Kits:
Manufacturer Part# 191220-B21
This is the full processor option kit. It includes the
Processor(s), Heat-Sink(s), Fan(s), Thermal paste
and VRM (Voltage Regulator Module) where required.
Overview: This Intel Pentium 4 Xeon processor option kit working at 1.5GHz with 1MB of cache is designed and manufactured by Intel for Compaq/HP's Proliant
Features: General Information - Package Detail: 1 x Compaq label Processor Heatsink and VRM