Compaq dc7700 Hardware Reference Guide - dc7700 CMT - Page 18

Removing the Computer Access Panel

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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 CAUTION After removing the access panel, look for the LED on the system board to the right of the DIMM sockets. If the LED is illuminated, the system still has power. Turn off the computer and remove the power cord before proceeding. 12 Chapter 2 Hardware Upgrades ENWW

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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
CAUTION
After removing the access panel, look for the LED on the system board to the
right of the DIMM sockets. If the LED is illuminated, the system still has power. Turn off the
computer and remove the power cord before proceeding.
12
Chapter 2
Hardware Upgrades
ENWW