Internal Visual Inspection - Sun Microsystems Sun Fire V20z User Manual

3.2.2

Internal Visual Inspection

To visually inspect the internal system, follow these steps:
Note – Before proceeding, read the safety instructions in the document, Important Safety
Information About Sun Hardware Systems, which is shipped with your system.
1. Shut down the operating system, if necessary, and turn off the platform power on
the front of the server.
2. Turn off the AC power in one of the following two methods, depending on which
server type you have:
If you have a Sun Fire V20z server, turn off the AC power switch on the rear panel
■
of the server (see
supply to maintain system ground.
If you have a Sun Fire V40z server, unplug the AC power cord(s) from the AC
■
connectors on the server's power supply(s).
Caution – When you unplug the AC power cords from the Sun Fire V40z server
power supplies to remove AC power, system ground is also removed. You must
maintain an equal voltage potential to the machine to avoid electrostatic discharge
damage to the machine.
3. Turn off power to any attached peripherals.
4. Remove the server cover.
For a Sun Fire V20z server, refer to"Powering Off the Server and Removing the
Cover" on page 4-2.
For a Sun Fire V40z server, refer to"Powering Off the Server and Removing the
Cover" on page 5-2.
Caution – Some components, such as the heatsink, can become extremely hot
during system operations. Allow these components to cool before handling them.
3-4 Sun Fire V20z and Sun Fire V40z Servers User Guide • December 2004
). Leave the AC power cord attached to the power
FIGURE 1-2