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3. Connect a network cable to your computer, if necessary. 4. Connect your computer and all attached devices to their electrical outlets. 5. Turn on your computer. Back to Contents Page WARNING: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the computer cover. CAUTION: To connect a network cable, first plug the cable into the network device and then plug it into the computer Back to Contents Page Cable Guide Dell™ OptiPlex™ FX160/160 Service Manual Removing the Cable Guide Replacing the Cable Guide Removing the Cable Guide 1. Remove the screw that secures the cable guide to the system board. 2. Lift the guide out of the computer. Replacing the Cable Guide 1. Align the cable guide screw hole with the hole on the system board. 2. Secure the cable guide to the system board with the screw. . Back to Contents Page Back to Contents Page Coin-Cell Battery Dell™ OptiPlex™ FX160/160 Service Manual Removing the Coin-Cell Battery Replacing the Coin-Cell Battery One of two types of coin-cell battery sockets is provided with the your computer. One type has retaining clips that wrap along the sides of the battery to hold it in the socket. The other type has a single retaining hook that holds the battery in place. Removing the Coin-Cell Battery 1. Perform the procedure in Before Working on Your Computer. 2. Depending on the type of battery socket that is provided with your computer, either push the top edge of the battery to out of the retaining clips along the sides of the socket until it can be lifted out, or push back the retaining hook and lift the battery out of the socket. Replacing the Coin-Cell Battery 1. Slide the battery into the battery socket a slight angle to bypass the retaining clip(s) 2. Position the battery upright such that it is seated properly and securely held in place by the retainers. 3. Perform the procedure in After Working on Your Computer. 4. Restart your computer and enter the BIOS setup to configure option settings as needed (see Entering the BIOS Setup Utility). Back to Contents Page CAUTION: BIOS setup options revert to the factory default settings when the coin- cell battery is replaced. Before replacing the coin-cell battery, record system BIOS options for future reference. Refer to the BIOS Setup Utility Options. WARNING: A coin-cell battery can explode of installed incorrectly. Replace the battery only with the type recommended by Dell. Discard used batteries according to the manufacturer's instructions. 1 coin-cell battery socket 2 coin-cell battery Back to Contents Page Covers Dell™ OptiPlex™ FX160/160 Service Manual Removing the Computer Cover Replacing the Computer Cover Removing the Side Cover Replacing the Side Cover Removing the Computer Cover 1. Disconnect the security cable from the computer (if present). 2. Place the computer in a horizontal position. 3. If necessary, move the antenna so that it does not obstruct access to the cover screw. 4. Remove the two screws from the back of the computer. 5. Slide the cover toward the front of the computer and lift it off. Replacing the Computer Cover 1. Place the computer in a horizontal position. 2. Place the computer cover on top of the computer. The tab with the security cable slot should be toward the back of the computer, and the cover should be approximately 1/4 inch from the system lock tabs being aligned. 3. Slide the cover toward the back of the computer until the system lock tabs are aligned. 4. Replace the two screws that secure the cover to the chassis. WARNING: Always unplug your computer from the electrical outlet before removing the computer cover. WARNING: Some components become very hot during normal operation. Allow system components to cool before touching them. 1 screw (2) 2 security cable slot 5. Reattach the security cable to your computer, if necessary. Removing the Side Cover 1. Lift the back edge of the side cover away from the chassis, then slip the hooks under the front edge of the side cover out of the slots on the side of the chassis. Replacing the Side Cover 1. With the side cover at a 30-degree angle to the chassis, slip the hooks under the front edge of the side cover into the slots for the side cover on the left side of the chassis. 2. Swing the back edge of the side cover into the chassis to engage the pegs under the back edge of the cover with the chassis retainers. 1 side cover 2 side cover hooks slots Back to Contents Page 1 peg (2) 2 peg retainer (2) 3 side cover hooks (2) 4 side cover hook slots(2) Back to Contents Page Finding Information Dell™ OptiPlex™ FX160/160 Service Manual Back to Contents Page NOTE: Some features or media may be optional and may not ship with your computer. Some features or media may not be available in certain countries. NOTE: Additional information may ship with your computer. Document/Media/Label Contents Service Tag Express Service Code The Service Tag/Express Service Code is located on your computer and on the ...