IBM System x3800 Problem Determination And Service Manual page 145

5. Note where the light path diagnostics ribbon cable and front USB cable are
connected, and disconnect both cables from the I/O board.
6. Note the position of the operator information panel assembly. "RACK" and
"TOWER" are visible through an opening at the rear of the operator information
panel assembly to indicate the position of the assembly.
7. Press on the retention tab and pull the operator information panel assembly
through the chassis; then, pull the assembly up and out of the server.
8. If you are instructed to return the operator information panel assembly, follow all
packaging instructions, and use any packaging materials for shipping that are
supplied to you.
Ferrite core
Hook and loop
Chapter 4. Removing and replacing server components
129