NOTE: To locate the connectors on the system board, see System Board Connectors.5. Connect the control panel cable to the connectors on the system board (J_CP and J_FP_USB) andthe hard-drive expander card.NOTE: Ensure that the control panel cable inside the system is routed along the chassis walland secured using the cable securing bracket.6. Close the system.7. Reconnect the system to its electrical outlet and turn the system on, including any attachedperipherals.8. If applicable, install the front bezel.System boardRemoving the system boardCAUTION: Many repairs may only be done by a certified service technician. You should onlyperform troubleshooting and simple repairs as authorized in your product documentation, or asdirected by the online or telephone service and support team. Damage due to servicing that isnot authorized by Dell is not covered by your warranty. Read and follow the safety instructionsthat came with the product.CAUTION: If you are using the Trusted Program Module (TPM) with an encryption key, you maybe prompted to create a recovery key during program or System Setup. Be sure to create andsafely store this recovery key. If you replace this system board, you must supply the recovery keywhen you restart your system or program before you can access the encrypted data on your harddrives.1. Turn off the system, including any attached peripherals, and disconnect the system from theelectrical outlet.2. If installed, remove the front bezel.3. Open the system.4. Remove the following:a. cooling shroudb. memory modulesc. cooling fansd. power supply(s)e. all expansion-card risersWARNING: The heat sink is hot to touch for some time after the system has been powereddown. Ensure that you do not touch the heat sink(s) while removing the system board.f. heat sink(s) and processors(s)g. all expansion cards and the integrated storage controller cardh. network daughter cardi. hot-swap hard drivesj. hard-drive backplaneCAUTION: To avoid damaging the mini SAS cable and connector, follow the correctprocedure in step 5 when removing the mini SAS cable from the system board.5. Disconnect the mini SAS cable from the system board:a. Push the mini SAS cable connector to slide it further into the connector (J_SASX8) on the systemboard.b. Press down and hold the metal tab on the mini SAS cable connector.63