Sun Microsystems Netra 440, Service Manual, Page: 48 / 166

30 Netra 440 Server Service Manual • August 2004
Note – The system can take anywhere from 30 seconds to 20 minutes before the
system banner appears. This time depends on the system configuration (number of
CPUs, memory modules, PCI cards) and the level of POST and OpenBoot
Diagnostics tests being performed. For more information about OpenBoot
configuration variables, see the
Netra 440 Server System Administration Guide (817-
3884-xx).
10. Turn the rotary switch to the Locked position (
FIGURE 2-2
).
This prevents anyone from accidentally powering off the system.
11. Close the system door.
The system front panel LED indicators provide power-on status information. For
information about the system LEDs, see
“Front Panel LEDs” on page 3 .
If the system encounters a problem during startup, and the rotary switch is in the
Normal position, try restarting the system in diagnostics mode to determine the
source of the problem. Turn the rotary switch to the Diagnostics position and power
cycle the system. See
“Powering Off the System” on page 26 .
For information about system diagnostics and troubleshooting, refer to the Netra 440
Server Diagnostics and Troubleshooting Guide (817-3886-xx).
Accessing Internal Components
Removing the Top Cover
1. Power off the system.
See “Powering Off the System” on page 26 .
2. Remove the system from the rack.
The procedures for removing the system from the rack will vary, depending on the
type of rack mount kit that you are using. Refer to the
Netra 440 Server Installation
Guide (817-3882-xx) for more information.
3. Open the system door.