Dell PowerEdge 800 - Manual (Page 14)

13. Remove the back fan. See " Removing the Back System Fan " in "Installing System Components."
14. Remove all PCI expansion cards from the expansion slots. See " Removing an Expansion Card " in "Installing System Components."
15. Loosen the thumbscrew that secures the system board tray to the chassis. See Figure C -3 .
16. Slide the system board toward the front of the chassis about 2.5 cm (1 inch).
17. Carefully lift the system board up and out of the chassis. See Figure C -3 .
Figure C-3. Removing the System Board
Installing the System Board
1. Unpack the new system board.
2. Ensure that the system board jumpers are set the same as on the board that you just removed, and change the settings if necessary. See Figure A -2 in
"Jumpers, Switches, and Connectors."
3. Remove the memory modules from the original system board and transfer them to the new board, being careful to install the memory modules in the
same locations.
See " Removing Memory Modules " and " Installing Memory Modules " in "Installing System Components."
4. Remove the processor from the original system board. See " Removing the Processor " in "Installing System Components."
5. Reinstall the processor and heat sink on the new system board. See " Installing a Processor " in "Installing System Components."
6. Making sure that no cables are trapped beneath the system board tray, lower the new system board into the chassis.
7. Slide the system board toward the back of the chassis as far as it will go.
8. Tighten the thumbscrew that secures the system board tray to the chassis.
9. Install the back fan and connect the fan cable to the BACK_FAN connector on the system board. See " Installing the Back System Fan " in "Installing
System Components."
10. Connect the following cables to the system board. See Figure A -3 .
l Optical-drive interface cable (PRIMARY_IDE connector)
l Diskette-drive cable (FDD connector)
l Control panel cable (FRONT_PANEL connector)
l Chassis-intrusion switch cable (INTRUSION_SWITCH connector)
l Front fan cable (FRONT_FAN connector)
11. Install all expansion cards and connect any interface cables to the appropriate components in the system. See " Installing an Expansion Card " in
"Installing System Components."