CAUTION: The display module connector is a ZIF (zero insertion force) connector. Ensurethat the locking tab on the connector is released before removal and insertion. The lockingtab must be engaged after insertion.5. Connect the display module cables to the control panel board.Next stepsFollow the procedure listed in After working inside your system.System boardRemoving the system boardPrerequisitesCAUTION: 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 Platform 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.CAUTION: Do not attempt to remove the TPM plug-in module from the motherboard. Once theTPM plug-in module is installed, it is cryptographically bound to that specific motherboard. Anyattempt to remove an installed TPM plug-in module breaks the cryptographic binding, and itcannot be re-installed or installed on another motherboard.1. Ensure that you read the Safety instructions.2. Follow the procedure listed in Before working inside your system.3. Remove the following:a. cooling shroudb. memory modulesc. cooling fansd. power supply(s)e. all expansion-card risers and expansion cardsWARNING: The heat sink is hot to touch for some time after the system has beenpowered down. Ensure that you do not touch the heat sink(s) while removing thesystem board.f. heat sink(s)/heat-sink blanks and processors(s)/processor blanksCAUTION: To prevent damage to the processor pins when replacing a faulty systemboard, ensure that you cover the processor socket with the processor protective cap.g. integrated storage controller cardh. network daughter cardi. internal dual SD module122
