HP dc7700 tower manual Removing the Computer Access Panel

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 2-2Removing 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