Sun Microsystems Ultra 20 User Manual page 90

6. Reconnect the power supply cables (see
with the cable management tie.
Caution – When installing power supply cables, make sure that the cables do not
interfere with the DIMMs. If the cables push against the DIMMs after they are
installed, they could cause the DIMMs to become loosened from the connectors.
7. Replace the left-side access panel.
4.5.9 Replacing the I/O Board Assembly
4.5.9.1 Removing the I/O Board Assembly
To remove the I/O board assembly:
1. Turn off the power button on the back panel and all of the peripherals connected
to the workstation.
2. Disconnect any audio, USB, and IEEE 1394 cables connected to the front of the
workstation.
3. Remove the bezel (see
4-38 Sun Ultra 20 Workstation User Guide • August 2006
FIGURE 4-27
Section 4.3.2, "Removing the Front Bezel" on page
and ) and secure them
TABLE 4-4
4-5).