HP Dc7900 Hardware Reference Guide - dc7900 Series Convertible Minitower - Page 17

Removing the Computer Access Panel - power cord

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Removing the Computer Access Panel 1. Remove/disengage any security devices that prohibit opening the computer. 2. Remove all removable media, such as diskettes or compact discs, from the computer. 3. Turn off the computer properly through the operating system, then turn off any external devices. 4. Disconnect the power cord from the power outlet and disconnect any external devices. 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. You must disconnect the power cord to avoid damage to the internal components of the computer. 5. Lay the computer down on its large base for greater stability. 6. Lift up on the access panel handle (1), slide the access panel back about 1.25 cm (1/2 inch), then lift it up and off the unit (2). Figure 2-2 Removing the Computer Access Panel ENWW Removing the Computer Access Panel 11

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Removing the Computer Access Panel
1.
Remove/disengage any security devices that prohibit opening the computer.
2.
Remove all removable media, such as diskettes or compact discs, from the computer.
3.
Turn off the computer properly through the operating system, then turn off any external devices.
4.
Disconnect the power cord from the power outlet and disconnect any external devices.
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. You must disconnect the power cord to
avoid damage to the internal components of the computer.
5.
Lay the computer down on its large base for greater stability.
6.
Lift up on the access panel handle (1), slide the access panel back about 1.25 cm (1/2 inch), then
lift it up and off the unit (2).
Figure 2-2
Removing the Computer Access Panel
ENWW
Removing the Computer Access Panel
11