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To remove the PCI riser board, perform the following steps: 1. Remove the expansion-card cage. 2. Remove the expansion cards installed in the slots. 3. Remove the screws securing the riser board to the expansion-card cage. 4. Lift the riser board off the expansion card cage. System Board Components The subsections that follow contain procedures for removing system board components, which are shown in Figure 21. Figure 21. System Board Components 1 DIMM sockets (3) 2 3.3-V power connector 3 Battery socket 4 Chassis intrusion switch connector 5 Control panel connector 6 Main power input connector 7 Video-memory upgrade socket 8 Primary EIDE interface connector 9 Secondary EIDE interface connector 10 Diskette/tape drive interface connector 11 System board jumpers 12 Riser board connector 13 ATI multimedia connector 14 Audio line-in connector 15 Audio line-out connector 16 Microphone jack 17 Optional integrated NIC connector 18 Telephony connector 19 Video connector 20 CD-in connector 21 Microprocessor fan connector 22 Serial port 2 connector 23 USB connectors (2) 24 Mouse/keyboard connector (stacked) 25 Parallel/serial port 1 connector (stacked) System Board Jumpers Figure 22 shows the layout of jumpers on the system board. Figure 22. System Board Jumpers Table 1 lists the system-board jumper settings, and it gives a brief description of their functions. Table 1. System-Board Jumper Settings Jumper Setting Description PSWD (default) Password features are enabled. Password features are disabled. BIOS (default) Reserved (do not change) BUS66M (default) Reserved (do not change) 266MHZ* (default) Reserved (do not change) 300MHZ* (default) Reserved (do not change) 333MHZ* (default) Reserved (do not change) 350MHZ* (default) Reserved (do not change) 400MHZ* (default) Reserved (do not change) 450MHZ* (default) Reserved (do not change) 500MHZ* (default) Reserved (do not change) * The correct microprocessor speed is automatically detected and set by the system. Do not change the settings of these jumpers. jumpered unjumpered Jumper pins are small groups of two or more pins on a circuit board. Plastic jumpers containing a wire fit down over the pins. The wire connects the pins and creates a circuit. NOTICE: Make sure that your system is turned off before you change a jumper setting. Otherwise, damage to your system or unpredictable results may occur. To change a jumper setting, pull the jumper off its pin(s) and carefully fit it down onto the pin(s) indicated. Dell shipped your computer with a PSWD jumper installed, meaning that the password features for this computer are enabled. When you remove the jumper, or when you install the jumper on only one of the two pins, the password features are disabled. System Board Labels Table 2 lists the labels for connectors and sockets on your system board, and it gives a brief description of their functions. Table 2. System Board Connectors and Sockets Connector or Socket Description AMC ATI multimedia channel BATTERY Battery socket CD_IN CD-ROM audio interface connector DIMM_x DIMM socket DSKT Diskette/tape drive interface connector ENET NIC connector (optional) FAN Microprocessor fan connector HDLED Hard-disk drive LED connector (on riser board) IDEn EIDE interface connector INTRUSION Chassis intrusion switch connector KYBD Keyboard connector LINE-IN Audio line-in jack LINE-OUT Audio line-out jack MIC Microphone jack MONITOR Video connector MOUSE Mouse connector P1 Wakeup On LAN power connector (on riser board) PANEL Control panel connector PARALLEL Parallel port connector, sometimes referred to as LPT1 PCIn PCI expansion-card connector (on riser board) POWER_1 Main power input connector POWER_2 3.3-V power input connector RISER Riser board connector SERIALn Serial port connectors SLOT1 Microprocessor connector TAPI Telephony connector USB USB connector VIDEO_UPGRADE Video-memory upgrade socket Expansion Cards The small-form-factor GX1 chassis can accommodate up to two half-length 32-bit PCI expansion cards. Figure 23 shows an example of a 32-bit PCI expansion card. Figure 23. 32-Bit PCI Expansion Card Example Removing an Expansion Card CAUTION: Use a wrist grounding strap as explained in "Precautionary Measures." To remove an expansion card, perform the following steps: 1. Remove the computer cover. 2. If necessary, disconnect any cables connected to the card. 3. Remove the expansion-card cage. 4. Remove the screw on the mounting bracket of the card you want to remove. 5. Grasp the card by its outside corners, and ease it out of its connector. 6. If you are removing the card permanently, install a metal filler bracket over the empty card-slot opening. NOTE: Installing filler brackets over empty card-slot openings is necessary to maintain Federal Communications Commission (FCC) certification of the system. The brackets also keep dust and dirt out of your computer. Replace the computer cover, and reconnect your computer and peripherals to their power sources and turn them on. NOTE...