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4
Removal and replacement procedures –
small form factor (SFF) chassis
Adherence to the procedures and precautions described in this chapter is essential for proper service. After
completing all necessary removal and replacement procedures, run the Diagnostics utility to verify that all
components operate properly.
NOTE:
Not all features listed in this guide are available on all computers.
NOTE:
HP continually improves and changes product parts. For complete and current information on
supported parts for your computer, go to http://partsurfer.hp.com, select your country or region, and then
follow the on-screen instructions.
Preparation for disassembly
See
Routine care, SATA drive guidelines, and disassembly preparation on page 11
1.
Remove/disengage any security devices that prohibit opening the computer.
2.
Close any open software applications.
3.
Exit the operating system.
4.
Remove any compact disc or media card from the computer.
5.
Turn off the computer and any peripheral devices that are connected to it.
CAUTION:
Regardless of the power-on state, voltage is always present on the system board as long as the system
is plugged into an active AC outlet. In some systems the cooling fan is on even when the computer is in
the "Standby," or "Suspend" modes. The power cord should always be disconnected before servicing a
unit.
6.
Disconnect the power cord from the electrical outlet and then from the computer.
7.
Disconnect all peripheral device cables from the computer.
NOTE:
screws with the units removed.
CAUTION:
screw in an application may damage the unit.
8.
If the computer is on a stand, remove the computer from the stand.
18
Chapter 4 Removal and replacement procedures – small form factor (SFF) chassis
Turn off the computer before disconnecting any cables.
During disassembly, label each cable as you remove it, noting its position and routing. Keep all
The screws used in the computer are of different thread sizes and lengths; using the wrong
for initial safety procedures.
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