Silicon Graphics 1400, Maintenance And Upgrade Manual

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Chapter 3
3. SGI 1400 Server SCSI Backplane Installation
SCSI Backplane Warnings and Cautions
The warnings and cautions listed a the beginning of Chapter 1 apply whenever you
remove the access cover of the system. Only a technically qualified person should
perform the upgrade installation described in the following sections. Also see Chapter 1
for a list of tools to use.
Safety: Before You Remove the Access Cover
Before removing the access cover at any time to work inside the system, observe these
safety guidelines.
1. Turn off all peripheral devices connected to the system.
2. Turn off the system by using the push-button on/off power switch on the front of
the system.
3. Unplug all AC power cords from the system or wall outlet.
4. Label and disconnect all peripheral cables and all telecommunication lines
connected to I/O connectors or ports on the back of the system.
5. Provide some ESD protection by wearing an antistatic wrist strap attached to
chassis ground of the system—any unpainted metal surface—when handling
components.
General Procedure to Open the Chassis
1. Label and disconnect all peripheral cables and all telecommunication lines
connected to I/O connectors or ports on the back of the system. Unplug all AC
power cords from the system and wall outlet.
2. Remove the access cover, see Figure 3-1.