Sun Microsystems Sun Fire X4240 - Manual (Page 14)

4 Sun Fire X4140, X4240, and X4440 Servers Diagnostics Guide • August 2008
Internally Inspecting the Server
To perform a visual inspection of the internal system:
1. Choose a method for shutting down the server from main power mode to
standby power mode. See FIGURE 1-1 and FIGURE 1-2 .
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Graceful shutdown – Use a ballpoint pen or other stylus to press and release
the Power button on the front panel. This causes Advanced Configuration and
Power Interface (ACPI) enabled operating systems to perform an orderly
shutdown of the operating system. Servers not running ACPI-enabled
operating systems will shut down to standby power mode immediately.
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Emergency shutdown – Use a ballpoint pen or other stylus to press and hold
the Power button for four seconds to force main power off and enter standby
power mode.
Caution – Performing an emergency shutdown can cause open files to become
corrupt. Use an emergency shutdown only when necessary.
When main power is off, the Power/OK LED on the front panel will begin
flashing, indicating that the server is in standby power mode.
Caution – When you use the Power button to enter standby power mode, power is
still directed to service processor and power supply fans, indicated when the
Power/OK LED is flashing. To completely power off the server, you must disconnect
the AC power cords from the back panel of the server.
FIGURE 1-1 X4140 Server Front Panel
Locate Button/LED
PowerButton