HP Integrity rx8640, HP 9000 rp8440 Server User Service Guide

6 Removing and Replacing Components
This chapter provides a detailed description of the server field replaceable unit (CRU) removal and
replacement procedures.
The procedures in this chapter are intended for use by trained and experienced HP service personnel
only.
Customer Replaceable Units (CRUs)
The following section lists the different types of CRUs the server supports.
Hot-Plug CRUs
A CRU is defined as hot-plug if it can be removed from the chassis while the system remains
operational, but requires software intervention before it is removed.
The following are remove and replace procedures for hot-plug CRUs:
• Removing and Replacing a Disk Drive
• Removing and Replacing a PCI Card
Hot-Swap CRUs
A CRU is hot-swap if it can be removed from the chassis while the server remains operational and
requires no software intervention before it is removed.
The following list identifies procedures for removing and replacing the hot-swap CRUs in the server.
• Removing and Replacing the PCI Power Supply
• Removing and Replacing the Front Smart Fan Assembly
• Removing and Replacing the Rear Smart Fan Assembly
• Removing and Replacing a PCI Smart Fan Assembly
• Removing and Replacing a Bulk Power Supply (BPS)
Other CRUs
To remove and replace the CRUs that are neither hot-plug nor hot-swap, you must shut down HP-UX
in the nPartition where the CRU resides and turn off power to the CRU before removing it. See
“Powering Off Hardware Components and Powering On the Server” (page 134), and Chapter 4
“Operating System Boot and Shutdown” for instructions.
Procedures for these CRUs include:
• Removing and Replacing a Removable Media Drive
• Removing and Replacing the Front Panel Board
Safety and Environmental Considerations
WARNING! Before proceeding with any installation, maintenance, or service on a system that
requires physical contact with electrical or electronic components, be sure that either power is
removed or safety precautions are followed to protect against electric shock and equipment damage.
Observe all WARNING and CAUTION labels on equipment. All installation and service work must
be done by qualified personnel.
Customer Replaceable Units (CRUs) 133