5500/5500R Options     Processor   117810-B21 PL55/6400R 6/500-512K Processor Option w/ non-redundant PPM   117811-B21 PL55/6400R 6/500-1MB Processor Option w/ non-redundant PPM   117812-B21 PL55/6400R 6/500-2MB Processor Option w/ non-redundant PPM   328717-B21 ProLiant 5500 PII Xeon 6/400-512K Processor Option Kit   328718-B21 ProLiant 5500 PII Xeon 6/400-1024K Processor Option Kit   328976-B21 ProLiant 5500 PII Xeon 6/450-512K Processor Option Kit   328977-B21 ProLiant 5500 PII Xeon 6/450-1024K Processor Option Kit   328978-B21 ProLiant 5500 PII Xeon 6/450-2048K Processor Option Kit   155222-B21 Pentium III Xeon 6/550 512K Processor Option Kit   155223-B21 Pentium III Xeon 6/550 1MB Processor Option Kit   155224-B21 Pentium III Xeon 6/550 2MB Processor Option Kit   Memory (DIMMs)   149023-B21 32 MB Buffered EDO DIMM Memory Kit (2x16 MB)   149024-B21 64 MB Buffered EDO DIMM Memory Kit (2x32 MB)   149025-B21 128 MB Buffered EDO DIMM Memory Kit (2x64 MB)   149026-B21 256 MB Buffered EDO DIMM Memory Kit (2x128 MB)   241770-B21 64-Megabyte DIMM Kit 60ns   241771-B21 128-Megabyte DIMM Kit 60ns   241772-B21 256-Megabyte DIMM Kit 60ns   241773-B21 512-Megabyte DIMM Kit 60ns   241774-B21 1024-Megabyte Memory Expansion Kit (4x256MB Buffered EDO DIMMs)   328580-B21 128 MB Buffered EDO DIMM Memory Kit (4x32 MB) 50ns   328581-B21 256 MB Buffered EDO DIMM Memory Kit (4x64 MB) 50ns   328582-B21 512 MB Buffered EDO DIMM Memory Kit (4x128 MB) 50ns   328583-B21 1024 MB Buffered EDO DIMM Memory Kit (4x256 MB) 50ns   Non-Hot Pluggable Hard Drives   339506-B21 4.3-GB Wide Ultra SCSI-3 Drive (1")   242584-001 4.3-GB Wide-Ultra SCSI-3 Hard Drive (1")   304858-B21 4.3-GB Wide-Ultra SCSI-3 10,000 RPM Drive   339509-B21 9.1-GB Wide Ultra SCSI-3 Drive (1")   199884-001 9.1-GB Wide-Ultra SCSI-3 Hard Drive (1.6")   349526-B21 9.1GB Wide Ultra2 SCSI Hard Drive (1”)   328942-B21 9.1GB Wide Ultra2 SCSI 10k-II Hard Drive (1”)   388143-B21 18.2-GB Wide Ultra 2 SCSI Hard Drive (1")   328943-B21 18.2GB Wide-Ultra2 SCSI 10k-II Hard Drive (1.6”)   128419-B21 18.2GB Wide-Ultra2 SCSI 10K Drive (1")  Proliant 5500 5500R SCSI Hot Plug Drive Options   HP/Compaq Proliant Hot Plug Ultra2 Hard Drives   123065-B22 Compaq 9.1GB Pluggable Ultra2 SCSI Universal Hard Drive 7,200 RPM Drive   328939-B22 Compaq 9.1GB Pluggable Ultra2 SCSI Universal Hard Drive 10,000 RPM Drive   388144-B22 Compaq 18.2GB Pluggable Ultra2 SCSI Universal Hard Drive 7,200 RPM Drive   128418-B22 Compaq 18.2GB Pluggable Ultra2 SCSI Universal Hard Drive 10,000 RPM Drive   HP/Compaq Proliant Hot Plug Ultra3 Hard Drives   142671-B22 HP Compaq 9.1GB Pluggable Ultra3 SCSI Universal Hard Drive 10,000 RPM   188120-B22 HP Compaq 9.1GB Pluggable Ultra3 SCSI Universal Hard Drive 15,000 RPM   142673-B22 HP Compaq 18.2GB Pluggable Ultra3 SCSI Universal Hard Drive 10,000 RPM   188122-B22 HP Compaq 18.2GB Pluggable Ultra3 SCSI Universal Hard Drive 15,000 RPM   176496-B22 HP Compaq 36.4GB Pluggable Ultra3 SCSI Universal Hard Drive 10,000 RPM   232916-B22 HP Compaq 36.4GB Pluggable Ultra3 SCSI Universal Hard Drive 15,000 RPM   232432-B22 HP Compaq 72.8GB Pluggable Ultra3 SCSI Universal Hard Drive 10,000 RPM   HP/Compaq Proliant Hot Plug Ultra3 Hard Drive Spare Part Numbers   152188-001 HP Compaq 9.1GB Pluggable Ultra3 SCSI Universal Hard Drive 10,000 RPM   189393-001 HP Compaq 9.1GB Pluggable Ultra3 SCSI Universal Hard Drive 15,000 RPM   152190-001 HP Compaq 18.2GB Pluggable Ultra3 SCSI Universal Hard Drive 10,000 RPM   189395-001 HP Compaq 18.2GB Pluggable Ultra3 SCSI Universal Hard Drive 15,000 RPM   177986-001 HP Compaq 36.4GB Pluggable Ultra3 SCSI Universal Hard Drive 10,000 RPM   233350-001 HP Compaq 36.4GB Pluggable Ultra3 SCSI Universal Hard Drive 15,000 RPM   233349-001 HP Compaq 72.8GB Pluggable Ultra3 SCSI Universal Hard Drive 10,000 RPM   HP/Compaq Proliant Hot Plug Ultra320 Hard Drives   286775-B22 HP Compaq 18.2GB Pluggable Ultra320 SCSI Universal Hard Drive 15,000 RPM   286713-B22 HP Compaq 36.4GB Pluggable Ultra320 SCSI Universal Hard Drive 10,000 RPM   286776-B22 HP Compaq 36.4GB Pluggable Ultra320 SCSI Universal Hard Drive 15,000 RPM   286714-B22 HP Compaq 72.8GB Pluggable Ultra320 SCSI Universal Hard Drive 10,000 RPM   286778-B22 HP Compaq 72.8GB Pluggable Ultra320 SCSI Universal Hard Drive 15,000 RPM   286716-B22 HP Compaq 146.8GB Pluggable Ultra320 SCSI Universal Hard Drive 10,000 RPM   347708-B22 HP Compaq 146.8GB Pluggable Ultra320 SCSI Universal Hard Drive 15,000 RPM   350964-B22 HP Compaq 300GB Pluggable Ultra320 SCSI Universal Hard Drive 10,000 RPM   411089-B22 HP Compaq 300GB Pluggable Ultra320 SCSI Universal Hard Drive 15,000 RPM   HP/Compaq Proliant Hot Plug Ultra320 Hard Drive Spare Part Numbers   289240-001 HP Compaq 18.2GB Pluggable Ultra320 SCSI Universal Hard Drive 15,000 RPM   289041-001 HP Compaq 36.4GB Pluggable Ultra320 SCSI Universal Hard Drive 10,000 RPM   289241-001 HP Compaq 36.4GB Pluggable Ultra320 SCSI Universal Hard Drive 15,000 RPM   289042-001 HP Compaq 72.8GB Pluggable Ultra320 SCSI Universal Hard Drive 10,000 RPM   289243-001 HP Compaq 72.8GB Pluggable Ultra320 SCSI Universal Hard Drive 15,000 RPM   289044-001 HP Compaq 146.8GB Pluggable Ultra320 SCSI Universal Hard Drive 10,000 RPM   347779-001 HP Compaq 146.8GB Pluggable Ultra320 SCSI Universal Hard Drive 15,000 RPM   364881-001 HP Compaq 300GB Pluggable Ultra320 SCSI Universal Hard Drive 10,000 RPM   411261-001 HP Compaq 300GB Pluggable Ultra320 SCSI Universal Hard Drive 15,000 RPM Note: All U320 Universal Hard Drives are backward compatible to U2 or U3 speeds.U320 drives require an optional U320 Smart Array Controller or U320 SCSI HBA to support U320 transfer rates.  Rescources   Proliant Troubleshooting links   Proliant Troubleshooting Guide   Memory Cross Reference   Storage Controllers   272514-001 Compaq Wide-Ultra SCSI-3 Controller (PCI)   295554-B21 Compaq Dual-Channel Wide-Ultra SCSI-3 Controller (PCI)   348757-B21 64-Bit Dual Channel Wide Ultra2 SCSI Adapter   388099-B21 Smart Array 221 Controller   295643-B21 Smart Array 3200 Controller   295636-B21 Smart Array 4200 Controller   295242-B21 Compaq SMART-2DH Array Controller