Description:
550MHz Intel Pentium III processor with 512KB Level 2 cache
Option Part# 155222-B21
Note: We ship Part# 155222-B21 with the appropriate Voltage Regulator Module (VRM) and Heat Sink. (The full Processor Option Kit)
Overview:
The Compaq 550Xeon Proliant 6400 and Proliant 5500 Server are upgradeable to Dual and Quad processing as well as upgradeable to 550MHz 2MB level 2 writeback cache per processor and support
Microsoft Windows NT Server
Microsoft Windows 2000
Novell NetWare
SCO OpenServer
SCO UnixWare
IBM OS/2 Warp Family
LINUX (RedHat, S.U.S.E., TurboLinux Server, Caldera eServer)
Sun Solaris Intel Platform Edition
and Banyan VINES Operating System
Part# 155222-B21 and Products ID# 1021 Purchased after May 01 2006 is covered by an UNCONDITIONAL LIFETIME WARRANTY for as long as you own the server.
Note: Our HP/Compaq Proliant Processors include the VRM (Voltage Regulator Module) and Heatsink.
Compaq/HP Product:
This Compaq/HP product (155222-B21) is 100% genuine with an authentic Compaq/HP logo and serial number. We do not sell 3rd party products.
We have 111 piece(s) of (155222-B21) in stock and ready to ship as of
U320 Drives
Proliant Options 
