Sun Microsystems Netra 120 - Manual (Page 171)

Chapter 11 Replacing a Server or Replacing Individual Components 11-17
11.7 Replacing the Power Supply Unit
Caution – The procedure below is for the attention of qualified service engineers
only. Before touching or replacing any components inside the server, disconnect all
cables and follow the instructions in Section 4.2, “Opening the Server” on page 4-4
which tell you how to open the server. Always place the server on a grounded ESD
pad and wear a properly grounded antistatic wrist strap.
1. Open the server by following the instructions in Section 4.2, “Opening the
Server” on page 4-4.
Make sure you disconnect all external cables and pay particular attention to the
information about how to prevent electro-static discharge from your body from
damaging the components of the server.
2. With the server open and seated on top of an ESD pad, and with a properly
grounded antistatic wrist strap on your wrist, disconnect the power supply cables
from the system board.
3. Undo the two rear fixing screws (see FIGURE 11-9 ).
4. Move the power supply unit (PSU) towards the front of the system to release it
from the location tabs in the base.
Lift it away from the chassis.
5. Lift the new PSU over the location tabs and slide it backwards into place (see
FIGURE 11-9 ).
6. Secure the two rear fixing screws.
7. Connect the power supply cables to the connectors on the system board.
8. Replace the server’s cover and tighten the captive screw (see FIGURE 4-9 in
Section 4.7, “Replacing the Server’s Top Cover” on page 4-15).