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b. Slide the module firmly into the slot at a 45-degree angle, and rotate the module down until it clicks into place. If you do not hear the click, remove the module and reinstall it. 10. Insert the securing tabs on the upper memory module cover into the notches above the memory module connector and tighten the captive screws. 1 upper memory module cover 2 captive screws (2) NOTICE: To prevent damage to the memory module connector, do not use tools to spread the memory module securing clips. NOTICE: Handle components and cards by their edges, and avoid touching pins and contacts. Ground yourself by touching a metal connector on the back of the computer. Continue to ground yourself periodically during this procedure. NOTE: If the memory module is not installed properly, the computer may not boot properly. No error message indicates this failure. NOTICE: If the upper memory module cover is difficult to replace, remove the module and reinstall it. Forcing the cover to close may damage your computer. 11. Replace the keyboard. 12. Insert the battery into the battery bay, or connect the AC adapter to your computer and an electrical outlet. 13. Turn on the computer. To confirm the amount of memory installed in the computer, click the Start button, click Help and Support, and then click Computer Information. Replacing a Modem 1. Ensure that the work surface is flat and clean to prevent scratching the computer cover. 2. Save and close any open files, exit any open programs, and then shut down the computer. 3. Disconnect the computer from the electrical outlet. 4. Wait 10 to 20 seconds and then disconnect any attached devices. 5. Remove the battery, any installed PC Cards or blanks, and devices. 6. Turn the computer over and loosen the two captive screws on the modem cover, and remove the cover. 7. If a modem is not already installed, go to step 10. 8. If you are replacing a modem, remove the existing modem: a. Remove the two M2 x5-mm screws securing the modem to the system board, and set them aside. b. Pull straight up on the attached pull-tab to lift the modem out of its connector on the system board, and disconnect the modem cable. CAUTION: Before performing any of the procedures listed below, read and follow the safety instructions in the Product Information Guide. NOTICE: Read "Before Working Inside Your Computer" before performing the following procedure. NOTICE: Handle modules by their edges, and do not touch the components on a module. Ground yourself by touching a metal connector on the back of the computer, and continue to do so periodically during this procedure. 1 Mini PCI card and modem cover 2 captive screws (2) 9. Connect the modem cable to the modem. 10. Align the modem with the screw hole and press the modem into the connector on the system board. 11. Install the two M2 x 5-mm screws to secure the modem to the system board. 12. Replace the cover. Adding a Mini PCI Card If you ordered a Mini PCI card with your computer, the card is already installed. 1. Ensure that the work surface is flat and clean to prevent scratching the computer cover. 2. Save and close any open files, exit any open programs, and shut down the computer. 3. Disconnect the computer from the electrical outlet. 4. Wait 10 to 20 seconds and then disconnect any attached devices. 5. Remove the battery, any installed PC Card or blanks, and devices. 6. Turn the computer over. 7. Loosen the two captive screws on the cover, and remove the cover. 1 M2 x 5-mm modem screws (2) 2 modem 3 modem cable connector 4 system board connector NOTICE: The connectors are keyed to ensure correct insertion. If you feel resistance, check the connectors and realign the card. CAUTION: Before performing any of the procedures listed below, read and follow the safety instructions in the Product Information Guide. NOTICE: Read "Before Working Inside Your Computer" before performing the following procedure. NOTICE: Handle modules and cards by their edges, and avoid touching pins and contacts. Ground yourself by touching a metal connector on the back of the computer. Continue to ground yourself periodically during this procedure. 8. If a Mini PCI card is not already installed, go to step 10. 9. If you are replacing a Mini PCI card, remove the existing card: a. Disconnect the Mini PCI card from the attached cables. b. Release the Mini PCI card by spreading the metal securing tabs until the card pops up slightly. 1 Mini PCI card and modem cover 2 captive screw (2) 1 antenna cable connectors c. Lift the Mini PCI card out of its connector. 10. To replace a Mini PCI card, align the card with the connector at a 45-degree angle, and press the Mini PCI card into the connector. 11. Lower the Mini PCI card toward the inner tabs to approximately a 20-degree angle. 12. Continue lowering the Mini PCI card until it snaps into the inner tabs of the connector. 13. Connect the antenna cable to the antenna connector on the Mini PCI card. 1 Mini PCI card 2 release latches (2) NOTICE: ...