This video will demonstrate the removal procedure of a System Board for the PowerEdge R720XD.
Removing The System Board: Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet. If installed, remove the front bezel. Open the system. Remove the following: cooling shroud cooling-fan assembly power supply(s) all expansion-card risers integrated storage controller card internal dual SD module internal USB key (if installed) PCIe card holdercable retention bracket if present, support bracket NOTE: The support bracket is present on certain system configurations for protection during shipping and can be discarded after removal. CAUTION: To avoid damaging the mini SAS cable and connector, follow the correct procedure when removing the mini SAS cable from the system board. Disconnect the mini SAS cable from the system board: Push the mini SAS cable connector to slide it further into the connector (J_SASX8) on the system board. Press down and hold the metal tab on the mini SAS cable connector. Pull the mini SAS cable out of the connector on the system board. Disconnect all cables from the system board. CAUTION: Take care not to damage the system identification button while removing the system board from the chassis. CAUTION: Do not lift the system board assembly by grasping a memory module, processor, or other components. Grasp the system-board holder, lift the blue release pin and slide the system board toward the front of the system. system board system-board holder release pin support bracket (present on certain systems only) WARNING: The heat sink and processor are hot to the touch for some time after the system has been powered down. Allow the heat sink and processor to cool before handling them. Remove heat sink(s)/heat-sink blank(s) and processors(s)/processor blank(s). Remove memory modules and memory module blanks. Remove network daughter card.
Installing The System Board: Unpack the new system board assembly. Transfer the following components to the new system board: heat sink(s)/heat-sink blank(s) and processors(s)/processor blank(s) memory modules and memory module blanks network daughter card CAUTION: Do not lift the system board assembly by grasping a memory module, processor, or other components. CAUTION: Take care not to damage the system identification button while placing the system board into the chassis. Hold the touch points and lower the system board into the chassis. Push the system board toward the back of the chassis until the board clicks into place. Replace the following: cable retention bracket PCIe card holder integrated storage controller card internal USB key (if installed) internal dual SD module all expansion-card risers cooling-fan assembly cooling shroud power supply(s) Reconnect all cables to the system board. NOTE: Ensure that the cables inside the system are routed along the chassis wall and secured using the cable securing bracket. Close the system. Reconnect the system to its electrical outlet and turn the system on, including any attached peripherals. Import your new or existing iDRAC Enterprise license. For more information, see iDRAC7 User's Guide, at dell.com/support/manuals.