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Table of Contents About This Document.......................................................................................................21 Intended Audience................................................................................................................................21 New and Changed Information in This Edition...................................................................................21 Publishing History................................................................................................................................21 Document Organization.......................................................................................................................21 Typographic Conventions...............................................................................................................22 Related Documents...............................................................................................................................22 Warranty Information......................................................................................................................22 Related Information..............................................................................................................................22 HP Encourages Your Comments..........................................................................................................23 1 Overview.......................................................................................................................25 Server Subsystems................................................................................................................................25 I/O....................................................................................................................................................25 PCI/PCI-X IOBP..........................................................................................................................27 PCI/PCI-X/PCIe IOBP.................................................................................................................28 PCIe MPS Optimization........................................................................................................28 Processor..........................................................................................................................................29 Memory...........................................................................................................................................29 Cooling.............................................................................................................................................31 Power...............................................................................................................................................32 Front Display Panel, DVD, and Diagnostic Panel...........................................................................34 Mass Storage....................................................................................................................................34 Firmware...............................................................................................................................................35 User Interface...................................................................................................................................35 Event IDs for Errors and Events......................................................................................................35 Controls, Ports, and LEDs.....................................................................................................................36 Front Panel.......................................................................................................................................36 Storage and Media Devices.............................................................................................................38 Hot-Pluggable Disk Drive LEDs................................................................................................38 Hot-Pluggable Disk Drive Slot Availability LEDs.....................................................................39 DVD Drive..................................................................................................................................39 Diagnostic Panel.........................................................