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Anleitung Zusammenfassung
2 Disconnect the DC power cables from the system board and the drives. Note the routing of the DC power cables underneath the clips in the computer as you remove them from the system board and drives. It is important to route these cables properly when you replace them to prevent them from being pinched or crimped. 3 On the small desktop computer, remove the expansion-card cage and remove the power cables from the side of the hard drive. To remove the power cables, use the cables as leverage and pull away from the clips while simultaneously pulling on the metal clips with your fingers. 4 On the small mini-tower computer, remove the two screws that attach the power supply to the rear wall. 5 Press the release button. On the small desktop computer, press down on the handle, which in turn presses on the release button. 6 Slide the power supply toward the front of the computer approximately 1 inch. 7 Lift the power supply up and out of the computer. Replacing the Power Supply 1 Slide the power supply into place. 2 Reconnect the DC power cables. 3 Connect the AC power cable to the connector. 4 On the small desktop computer, reattach the power cables to the side of the hard drive and replace the expansion-card cage. 5 Run the cables underneath the clips. 6 Press the clips to close them over the cables. Power Supply | support.dell.com 136 Power Supply SECTION 16 System Board System Board Components Removing the System Board Replacing the System Board dell.com | support.dell.com | support.dell.com 30 29 28 27 26 25 24 System Board Components 1234 5 6 7 8 9 10 11 12 23 22 21 20 19 18 17 16 15 14 13 138 System Board 1 Floppy drive 16 Audio line-out connector 2 Internal speaker 3 EIDE2 connector 4 Front panel connector 5 EIDE1 connector 6 Suspend-to-RAM light 7 PCI riser (small mini-tower computer only) 8 Auxiliary power light 9 AGP connector 10 PCI connectors 11 CD audio connector 12 Telephony connector (TAPI) 13 Front audio connector 14 Microphone connector 15 Audio line-in connector System Board Labels Connector or Socket Description AUDIO Line-in, line-out, and microphone jacks AUX_PWR Auxiliary power light BATTERY Battery socket CD-IN CD/DVD drive audio cable connector CPU Microprocessor connector DIAG_LED Diagnostic lights DIMM_x Dual in-line memory module (DIMM) socket DSKT Floppy/tape drive interface connector FAN Microprocessor fan connector FRONTAUDIO Front panel audio connector for integrated audio FRONTPANEL Front panel cable connector H_RISER Horizontal riser board connector; vertical PCI cards IDEn EIDE interface connector 17 12-volt microprocessor power connector 18 Network (upper) and USB connectors (2) (lower) 19 Keyboard (lower) and mouse (upper) connectors 20 Diagnostic lights 21 Serial 2 connector 22 Parallel connector 23 Serial 1 connector 24 Microprocessor and heat sink 25 Memory module (DIMM) connectors 26 Fan connector 27 Main power connector 28 Battery 29 RTC reset jumper 30 Password jumper System Board | support.dell.com Connector or Socket Description KYBD_MOUSE Keyboard and mouse connectors MODEM Telephony connector NIC_USB Integrated network adapter connector and USB connectors PAR_SER1_SER2 Parallel and serial port connectors PCIn PCI expansion card connectors POWER Main power input connector 12VPOWER 12-volt power connector PSWD Password jumper RTCRST RTC reset jumper SPEAKER Internal speaker STR Suspend-to-RAM light V_RISER Vertical riser board connector; horizontal PCI cards System Board Jumper 140 System Board System-Board Jumper Settings Jumper Setting Description PSWD (default) Password features are enabled. Password features are disabled. RTCRST Real-time clock reset. Can be used for troubleshooting purposes. jumpered unjumpered Removing the System Board CAUTION: Before you remove any component from the system board, read the steps in "Precautionary Measures." 1 Remove any components that restrict access to the system board. NOTE: The system board 2 Disconnect all cables from the system board. and metal tray are attached and are removed 3 Before you remove the existing system board, visually compare the as one piece. replacement system board to the existing system board to make sure that you have the correct part. 4 Pull up on the tab and slide the system board toward the front of the computer; lift it up and away. System Board | support.dell.com R e moving the System Board 5 Place the system board that you just removed next to the replacement system board. Replacing the System Board 1 Transfer components from the existing system board to the replacement system board. 2 Remove the memory modules and install them on the replacement board. CAUTION: The microprocessor package and heat sink assembly can get hot. To avoid burns, be sure that the package and assembly have had sufficient time to cool before you touch them. 3 Remove the heat sink assembly and microprocessor from the existing system board and transfer them to the repl...