Part 2 Removing And Replacing Model 400S System Unit Frus; System Unit Assemblies - HP 400 Series Servicing Manual

Part 2 Removing and Replacing Model 400s System Unit FRUs
5.5

System Unit Assemblies

This section explains how to remove the Model 400s system unit's assemblies,
including the cables and connectors that link the assemblies. Before you can remove
most assemblies, one or more covers must be removed.
Before you remove any assembly, you should safely shut down the system by logging
out and turning OFF the system unit. Remove the power cord.
CAUTION: Make sure that you are properly grounded before you attempt
NOTICE:
5-24 FRU Removal and Replacement
any of the following procedures. Use an anti-static mat with
static straps and other static prevention devices whenever
possible.
Always replace the system unit covers during troubleshoot-
ing sessions if the system is to run for an extended period of
time. The system unit cover is used to maintain proper air
flow cooling within the system unit.