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:
Turn off the computer before disconnecting any cables.
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:
During disassembly, label each cable as you remove it, noting its position and routing.
Keep all screws with the units removed.
CAUTION:
The screws used in the computer are of different thread sizes and lengths; using
the wrong screw in an application may damage the unit.
Preparation for Disassembly
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