User`s guide

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Chapter 4
4. Removing and Installing User Serviceable
Components
This chapter describes how to remove and install user-serviceable components.
A user can remove and install hot-swappable SCSI hard drives and hot-pluggable PCI
add-in boards. The term hot-swap describes the process of removing and installing a
system component without shutting down the server. The term hot-plug describes the
same process for PCI components only.
Note: At this time, the Linux operating system does not support use of the PCI Hot-Plug
(PHP) feature. If you are running Linux, your system must be turned off before installing
or removing PCI boards. Windows 2000 requires drivers that are PHP compatible in
order to use the PHP feature.
Warning: The total power requirement for the SGI 1450 server exceeds the 240 VA
energy hazard limit that defines an operator-accessible area. Only qualified service
technicians should access the processor, memory, power subsystem, and non
hot-plug/hot-swap areas of the baseboard.
Caution: Electrostatic discharge (ESD) and ESD protection: ESD can damage hard
drives, add-in boards, and other components. This server can withstand normal levels of
environmental ESD while you are hot-swapping SCSI hard drives. However, we
recommend doing all procedures in this manual only at an ESD-protected workstation.
If one is not available, provide some ESD protection by wearing an antistatic wrist strap
attached to chassis ground of the server—any unpainted metal surface—when handling
components.