Servicing The Motherboard; Remove Motherboard - Sun Oracle Sun Fire X4270 M2 Service Manual

d. Reconnect the power cord (or cords) to the power supply (or supplies) and
4.8

Servicing the Motherboard

Caution – Ensure that all power is removed from the server before removing or
installing the motherboard assembly. You must disconnect the power cables from the
system before performing these procedures.
Caution – These procedures require that you handle components that are sensitive
to electrostatic discharge. This discharge can cause server components to fail. To
avoid damage, ensure that you follow the antistatic practices as described in
Section 2.9, "Performing Electrostatic Discharge and Antistatic Prevention Measures"
on page
Caution – This procedure requires removing the server from the
rack. The server is heavy. Two people are required to remove it
from the rack.
4.8.1

Remove Motherboard

1. Prepare the server for service.
a. Power off the server and disconnect the power cord (or cords) from the power
b. Remove the server from the rack.
c. Attach an antistatic wrist strap.
4-36 Sun Fire X4270 M2 Server Service Manual • May 2011
power on the server.
See Section 6.5, "Powering On the Server" on page
Verify that the AC Present LED is lit.
2-31.
supply (or supplies).
See Section 2.4.2, "Power Off the Server" on page
See Section 2.7, "Removing the Server From the Rack" on page
See Section 2.9, "Performing Electrostatic Discharge and Antistatic Prevention
Measures" on page 2-31.
6-7.
2-4.
2-27.