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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 2-34 Rotating the Drive Cage Up
8. Rotate the power supply to its upright position. The hard drive is located beneath the power supply.
Figure 2-35 Raising the Power Supply
40 Chapter 2 Hardware Upgrades ENWW