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.If the computer is on a stand, remove the computer from the stand.

6.Remove the access panel.

7.Rotate the drive cage for external drives to its upright position. Figure 2-34Rotating the Drive Cage Up

8.Rotate the power supply to its upright position. The hard drive is located beneath the power supply. Figure 2-35Raising the Power Supply

40 Chapter 2 Hardware Upgrades

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