1850R Options     Processors   313612-B21 Pentium II 400 MHz Slot 1 512K Processor Option Kit   313618-B21 Pentium II 450 MHz Slot 1 512K Processor Option Kit   401268-B21 Pentium III 500 MHz Slot 1 512K Processor Option Kit   124779-B21 Pentium III 550MHz 512KB Processor Option Kit   153555-B21 600 MHz Option Kit   Memory   313614-B21 64MB SDRAM DIMM Kit (1x64MB/10ns)   313615-B21 128MB SDRAM DIMM Kit (1x128MB/10ns)   313616-B21 256MB SDRAM DIMM Kit (1x256MB)   Non-Hot Pluggable Hard Drives   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”)   Hot Pluggable   272577-001 4.3-GB Pluggable Wide-Ultra SCSI-3 Hard Drive (1")   304859-B21 4.3-GB Pluggable Wide-Ultra SCSI-3 10,000 RPM Drive   199882-001 9.1-GB Pluggable Wide-Ultra SCSI-3 Hard Drive (1.6")   313706-B21 9.1-GB Pluggable Wide-Ultra SCSI-3 Drive (1")   336369-B21 9.1 GB Pluggable Wide-Ultra SCSI-3 1" high 10K RPM drive   336357-B21 9.1-GB Pluggable Wide Ultra SCSI-3 10K-II Drive (1")   349514-B21 9.1-GB Pluggable Wide Ultra2 SCSI Hard Drive (1”)   328939-B21 9.1-GB Pluggable Wide Ultra2 SCSI 10k-II Hard Drive (1”)   313756-B21 18.2-GB Pluggable Wide-Ultra SCSI-3 Hard Drive (1.6")   336358-B21 18.2-GB Pluggable Wide-Ultra SCSI-3 10K-II Drive (1.6")   128417-B21 18-GB Pluggable Wide-Ultra SCSI-3 10K Drive (1")   400740-B21 36.4 Pluggable Wide-Ultra SCSI-3 Hard Drive (1.6") Replace with 176498-B21 Below   128420-B21 36.4GB Pluggable Wide-Ultra SCSI 10K Drive (1.6") Replace with 176498-B21 Below   176498-B21 36.4GB Pluggable Wide Ultra 10K (1")  Proliant 1850R SCSI Hot Plug Drive Options  Proliant Hot Plug Ultra2 Hard Drives      123065-B22 HP Compaq 9.1GB Pluggable Ultra2 SCSI Hard Drive 7,200 RPM Drive   328939-B22 HP Compaq 9.1GB Pluggable Ultra2 SCSI Hard Drive 10,000 RPM Drive   388144-B22 HP Compaq 18.2GB Pluggable Ultra2 SCSI Hard Drive 7,200 RPM Drive   128418-B22 HP Compaq 18.2GB Pluggable Ultra2 SCSI Hard Drive 10,000 RPM Drive  Proliant Hot Plug Ultra3 Hard Drives      142671-B22 HP Compaq 9.1GB Pluggable Ultra3 SCSI Hard Drive 10,000 RPM   188120-B22 HP Compaq 9.1GB Pluggable Ultra3 SCSI Hard Drive 15,000 RPM   142673-B22 HP Compaq 18.2GB Pluggable Ultra3 SCSI Hard Drive 10,000 RPM   188122-B22 HP Compaq 18.2GB Pluggable Ultra3 SCSI Hard Drive 15,000 RPM   176496-B22 HP Compaq 36.4GB Pluggable Ultra3 SCSI Hard Drive 10,000 RPM   232916-B22 HP Compaq 36.4GB Pluggable Ultra3 SCSI Hard Drive 15,000 RPM   232432-B22 HP Compaq 72.8GB Pluggable Ultra3 SCSI Hard Drive 10,000 RPM  Proliant Hot Plug Ultra3 Hard Drive Spare Part Numbers      152188-001 HP Compaq 9.1GB Pluggable Ultra3 SCSI Hard Drive 10,000 RPM   189393-001 HP Compaq 9.1GB Pluggable Ultra3 SCSI Hard Drive 15,000 RPM   152190-001 HP Compaq 18.2GB Pluggable Ultra3 SCSI Hard Drive 10,000 RPM   189395-001 HP Compaq 18.2GB Pluggable Ultra3 SCSI Hard Drive 15,000 RPM   177986-001 HP Compaq 36.4GB Pluggable Ultra3 SCSI Hard Drive 10,000 RPM   233350-001 HP Compaq 36.4GB Pluggable Ultra3 SCSI Hard Drive 15,000 RPM   233349-001 HP Compaq 72.8GB Pluggable Ultra3 SCSI Hard Drive 10,000 RPM  Proliant Ultra320 Hard Drives Note: All of these Ultra320 Hard Drives are backwards compatible and can directly replace any Ultra2 or Ultra3 Proliant Universal 1" Hard Drive. The actual transfer rates of these Ultra320 Hard Drives however will be determined by the Smart Array Controller in your server (U2/U3/U320).   Ultra320 Hard Drive QuickSpecs  Proliant Hot Plug Ultra320 Hard Drives      286775-B22 HP Compaq 18.2GB Pluggable Ultra320 SCSI Hard Drive 15,000 RPM   286713-B22 HP Compaq 36.4GB Pluggable Ultra320 SCSI Hard Drive 10,000 RPM   286776-B22 HP Compaq 36.4GB Pluggable Ultra320 SCSI Hard Drive 15,000 RPM   286714-B22 HP Compaq 72.8GB Pluggable Ultra320 SCSI Hard Drive 10,000 RPM   286778-B22 HP Compaq 72.8GB Pluggable Ultra320 SCSI Hard Drive 15,000 RPM   286716-B22 HP Compaq 146.8GB Pluggable Ultra320 SCSI Hard Drive 10,000 RPM   347708-B22 HP Compaq 146.8GB Pluggable Ultra320 SCSI Hard Drive 15,000 RPM   350964-B22 HP Compaq 300GB Pluggable Ultra320 SCSI Hard Drive 10,000 RPM   411089-B22 HP Compaq 300GB Pluggable Ultra320 SCSI Hard Drive 15,000 RPM  Proliant Hot Plug Ultra320 Hard Drive Spare Part Numbers      289240-001 HP Compaq 18.2GB Pluggable Ultra320 SCSI Hard Drive 15,000 RPM   289041-001 HP Compaq 36.4GB Pluggable Ultra320 SCSI Hard Drive 10,000 RPM   289241-001 HP Compaq 36.4GB Pluggable Ultra320 SCSI Hard Drive 15,000 RPM   289042-001 HP Compaq 72.8GB Pluggable Ultra320 SCSI Hard Drive 10,000 RPM   289243-001 HP Compaq 72.8GB Pluggable Ultra320 SCSI Hard Drive 15,000 RPM   289044-001 HP Compaq 146.8GB Pluggable Ultra320 SCSI Hard Drive 10,000 RPM   347779-001 HP Compaq 146.8GB Pluggable Ultra320 SCSI Hard Drive 15,000 RPM   364881-001 HP Compaq 300GB Pluggable Ultra320 SCSI Hard Drive 10,000 RPM   411261-001 HP Compaq 300GB Pluggable Ultra320 SCSI Hard Drive 15,000 RPM Note: All U320 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. Note: Please see the Hard Drive QuickSpecs for Technical Specifications such as capacity, height, width, interface, transfer rate, seek time, physical configuration, and operating temperature.   HP SCSI Ultra320 Hard Drive QuickSpecs  Resources   HP CPQ Memory Part Number Matrix   HP CPQ SCSI Hard Drive Part Number Matrix