Pre-Disassembly Procedures; Removal And Replacement Of Components - HP xw4200 Service And Technical Reference Manual

Pre-Disassembly Procedures

Before servicing the workstation:
1 Remove/disengage any security devices that prohibit opening the workstation.
2 Close any open software applications.
3 Remove any diskette or compact disc from the workstation.
4 Exit the operating system.
5 Turn off the workstation and any peripheral devices that are connected to it.
6 Remove/disengage any security devices that prohibit opening the workstation.
CAUTION Turn off the workstation before disconnecting any cables.
CAUTION The cooling fan is off only when the workstation is turned off or the power cable has been
disconnected. The cooling fan is always on when the workstation is in the "On," "Standby," or "Suspend"
modes. You must disconnect the power cord from the power source before opening the workstation to
prevent system board or component damage.
7 Disconnect the power cord from the electrical outlet and then from the workstation.
8 Disconnect all peripheral device cables from the workstation. For more information, see
Discharge Information" on page

Removal and Replacement of Components

This section discusses the procedures necessary to remove and install various hardware components
on your workstation. Review the safety and precautions and the
well as the Safety and Regulatory Guide, before servicing or upgrading your system.
1 Read all safety information and precautions.
2 Locate and clear a suitable work area.
3 Shut down the system and remove power from the unit.
4 Gather your tools.
5 Service your unit.
6 Restore power to your unit.
68.
"Service Considerations" on page
PRE-DISASSEMBLY PROCEDURES 73
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