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5. Install the memory modules. 6. Install the microprocessor. 7. Ensure that the system board jumpers and switches are set to the same settings as the board you removed. 8. Connect the two DC power cables to their power input connectors (CN1 and CN2) on the system board. 9. Install the riser card . 10. Install the expansion card . 11. Install the fan assembly. 12. Replace the system cover. 13. Replace the bezel. 14. Reconnect any external peripheral cables that you disconnected from their connectors at the back of the system. 15. Connect the power to the system and turn on the system. System Board Features Figure 9 defines the system board features. The system board labels are in parentheses. Refer to this figure when replacing your system board or components that attach to the system board. Figure 9. System Board Features 1 Fan power connector (CPUFAN1) 2 DIP switch (SW3) 3 Microprocessor and heat sink (CPU) 4 Power supply connectors (CN1 and CN2) 5 Serial port connector (COM1) 6 Memory modules (DIMM1 and DIMM2) 7 PCI riser card slot (PCI1) 8 LAN connectors (LAN1 and LAN2) 9 Battery connector (BT1) 10 Clear CMOS jumper (JP1) 11 System version jumper (JP5) Power Supply Your system has a single power supply, which is secured by a locking tab and four screws (see Figure 10). CAUTION: Read the safety instructions in your System Information document. Figure 10. Power Supply Removal 1 Locking tab 2 Power supply 3 Screws (4) To remove a power supply, perform the following steps. CAUTION: Avoid touching the cable connectors on the power supply. Wait 10 to 20 seconds after disconnecting the power cord before removing the power supply or coming into contact with its cable connectors. 1. Turn off the system, including any attached peripherals, and disconnect the system from its electrical outlet. 2. Open the bezel. 3. Remove the system cover. 4. Remove the fan assembly. 5. Disconnect the two DC power connectors on the system board (see Figure 9). 6. Using a #1 Phillips screwdriver, remove the four Phillips screws securing the power supply to the back of the system chassis. 7. Push the power supply forward (and away from the back panel) about 6.3 mm (0.25 inch). The power supply must clear the locking tab on the floor of the chassis. 8. Lift the power supply out of the chassis. Expansion Card The system has a single PCI expansion-card socket that connects to the system board through a riser card (see Figure 11). NOTICE: You can only install low-profile PCI expansion cards in this system. CAUTION: Read the safety instructions in your System Information document. Figure 11. Expansion-Card Replacement 1 Expansion card 2 Expansion-card latch 3 Expansion-card bracket slot 4 Riser-card slot 5 Riser card Expansion-Card Removal CAUTION: Read the safety instructions in your System Information document. 1. Turn off the system, including any attached peripherals, and disconnect the system from its electrical outlet. 2. Remove the system cover. 3. Release the expansion-card latch (see Figure 11). 4. Remove any cables attached to the expansion card. 5. Grasp the expansion card out and pull it away from the riser-card connector. Ensure that the expansion card's metal bracket is free of its slot. 6. If you are removing the card permanently, install a metal filler bracket over the empty card slot opening. NOTE: Installing a filler bracket over an empty expansion slot is necessary to maintain Federal Communications Commission (FCC) certification of the system. The brackets also keep dust and dirt out of the system and aid in proper cooling and airflow inside the system. 7. Replace the system cover. 8. Reconnect the system and peripherals to the power source, and then turn on the system. Expansion-Card Replacement To install a replacement or an additional expansion card, perform the following steps: 1. Prepare the replacement expansion card for installation. See the documentation that came with the expansion card for information about configuring the card, making internal connections, or customizing the card for the system. 2. If the replacement card is an identical replacement, ensure that any jumpers or configuration switches are set in an identical manner as the expansion card you just removed. 3. If not already installed, install the riser card . NOTICE: The riser card must be properly seated in its system board connector before attempting to install an expansion card. 4. Insert the expansion card's card -edge connector firmly into the riser card, and ensure that the mounting bracket enters its slot on the chassis back panel (see Figure 11). 5. When the card is fully seated in the connector and the card -mounting bracket is in its slot, close the expansion- card latch. 6. Connect any cables that should be attached to the card. See the documentation that came with the card for information about cable connections. 7. Replace the system cover. Riser Card The riser card supports a single PCI expansion card and connects to the riser-car...