Replacing The I/O Board Assembly; Removing The I/O Board Assembly - Sun Microsystems Ultra 20 M2 Service Manual

Caution – When you connect the power supply cables, make sure that the cables do
not interfere with the DIMMs. If the cables push against the DIMMs, the DIMMs
might loosen from their connectors.
5. Verify that the four mounting screws are secure, that all cables are reconnected,
and that the cables are secured by the cable management straps.
6. Close the system by performing the steps in
Instructions" on page
5.14

Replacing the I/O Board Assembly

The I/O board assembly sits beneath the DVD drive and contains the power switch,
power LED, and external connectors for the front panel.
5.14.1

Removing the I/O Board Assembly

Perform this procedure to remove the I/O board assembly.
1. Follow the steps in
Side Access Panel" on page
2. Disconnect any audio, USB, and IEEE 1394 cables connected to the front of the
workstation.
3. Remove the front bezel (see
4. Locate the back of the I/O board assembly within the workstation.
5. Disconnect all cables on the back of the I/O board.
5-42 Sun Ultra 20 M2 Workstation Service Manual • January 2007
5-5.
Section 5.2.2, "Powering Off the System and Removing the Left
5-3.
Section 5.2.3, "Removing the Front Bezel" on page
Section 5.3.1, "Postinstallation
5-4).