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Because the door is captive, it will remain in the open position. 4. If your computer includes a card retention mechanism, to secure the x16 card in place from the top: a. Pivot the mechanism upward and gently squeeze in on the sides to release the mechanism from the two tab slots holding it in place. b. Set the retention mechanism aside in a secure location. 5. If you are removing the card permanently, install a filler bracket in the empty card-slot opening. NOTE: Installing filler brackets over empty card-slot openings is necessary to maintain FCC certification of the computer. The brackets also keep dust and dirt out of your computer. NOTE: When you install a filler bracket, ensure that the bracket is seated correctly. 6. Reseat the card retention mechanism in the tabs and pivot downward to snap it into place. 7. Close the card retention door to snap it into place. 8. Replace the computer cover, reconnect the computer and devices to electrical outlets, and then turn them on. 9. Remove the card's driver from the operating system. 10. If you removed a sound card: a. Enter system setup, select Audio Controller, and then change the setting to On. b. Connect external audio devices to the audio connectors on the back panel of the computer. 11. If you removed an add-in network connector: a. Enter system setup, select Integrated NIC, and then change the setting to On. b. Connect the network cable to the integrated connector on the back panel of the computer. Drive Panel CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover. Removing the Drive Panel 1. Follow the procedures in "Before You Begin." 2. Remove the computer cover. 1 sliding plate lever 3 drive panel 2 sliding plate 4 front panel 3. Grasping the sliding plate lever, slide and hold the sliding plate until the drive panel snaps open. NOTE: The sliding plate secures and releases the drive panel and helps to secure the drives. 4. Pivot the drive panel outward and lift it away from the computer. 5. Set the drive panel aside in a secure location. Removing the Drive-Panel Insert 1. Follow the procedures in "Before You Begin." 2. Remove the computer cover. 3. Remove the drive panel. 1 drive-panel insert tab 2 drive-panel insert 3 drive panel 1. Turn the drive panel sideways and find the tip of the drive-panel insert tab that latches over a tab on the right side of the drive panel. 2. Pull the inner tip of the drive-panel insert tab away from the drive panel. 3. Pivot the drive-panel insert out and away from the drive panel. 4. Set the drive-panel insert aside in a secure location. Replacing the Drive-Panel Insert 1 drive-panel insert tab 3 center drive-panel tab 2 drive panel insert 4 drive panel 1. Slide the tab on the left side of the drive-panel insert under the center-drive panel tab. 2. Rotate the drive-panel insert into place and snap the drive-panel insert tab over the corresponding tab on the drive panel. Replacing the Drive Panel 1. Follow the procedures in "Before You Begin." 2. Remove the computer cover. 3. If you are installing a replacement drive panel, remove the old drive panel. 1 sliding plate lever 3 drive panel 2 sliding plate 4 front panel 4. Align the drive panel tabs with the side-door hinges. 5. Rotate the drive panel toward the computer until it snaps into place on the front panel. Front Panel CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover. Removing the Front Panel 1. Remove the computer cover. 2. Remove the drive panel. 3. Remove the hard drive and second hard drive, if applicable. 4. Remove the two front-panel screws. NOTICE: Use care when handling the front-panel release tabs to avoid damaging them. 5. Using a small, flat-blade screwdriver, press the four top front-panel release tabs upwards and press down on the four bottom release tabs to loosen the front panel. 6. Starting from the bottom of the front panel, pivot the panel toward the top of the computer and remove the panel. 1 top front-panel release tabs (4) 2 front-panel screws (2) 3 front panel 4 bottom front-panel release tabs (4) Drives Your computer supports a combination of these devices: Up to two serial ATA hard drives One FlexBay drive (may contain an optional floppy drive or an optional Media Card Reader) Up to two CD or DVD drives 1 CD/DVD drive(s) 2 FlexBay for optional floppy drive or optional Media Card Reader 3 hard drive(s) Connect CD/DVD drives to the connector labeled "IDE" on the system board. Serial ATA hard drives should be connected to the connectors labeled "SATA0" or "SATA2" on the system board. IDE Drive Addressing When you connect two IDE devices to a s...