Removing the USB cable and light path diagnostics assembly
To remove the USB cable and light path diagnostics assembly from the server,
complete the following steps:
1. Read the safety information that begins on page vii and “Handling
static-sensitive devices” on page 151.
2. Turn off the server and peripheral devices; then, disconnect the power cords
and all external cables.
3. Remove the power supply or power supplies from the power-supply cage (see
“Removing a hot-swap power supply” on page 273).
4. Unlock and remove the left-side cover (see “Removing the left-side cover” on
5. Carefully lay the server down on its side.
6. Remove the power supply or power supplies from the power-supply cage (see
“Removing a hot-swap power supply” on page 273).
7. Rotate the power-supply cage to its open position (see “Opening the
power-supply cage” on page 154).
8. Remove the air baffle (see “Removing the air baffle” on page 212).
9. Remove the fan cage assembly (see “Removing the fan cage assembly” on
10. Disconnect the light path diagnostics cable from the system board (see
“System board internal connectors” on page 15 and “Internal cable routing and
connectors” on page 164).
11. Stand the server back up in its vertical position.
12. Open the bezel by pressing the button on the left edge of the bezel, and rotate
the left side of the bezel away from the server.
13. Press down on the release latch on the top of the USB cable and light path
diagnostics assembly mounting bracket; then, rotate the top of the mounting
bracket away from the server.
14. Lift the USB cable and light path diagnostics assembly mounting bracket out
and away from the server while you pull the diagnostics cable through the
hole.
15. Disconnect the USB cable from the USB cable and light path diagnostics
assembly:
a. Rotate the USB cable and light path diagnostics assembly mounting
bracket so that you are looking at the rear of the bracket.
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IBM System x3400 M3 Types 7378 and 7379: Problem Determination and Service Guide
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