4Installing and removing systemcomponentsSafety instructionsWARNING: Whenever you need to lift the system, get others to assist you. To avoid injury, do notattempt to lift the system by yourself.WARNING: Opening or removing the system cover when the system is on may expose you to arisk of electric shock.CAUTION: Do not operate the system without the cover for a duration exceeding five minutes.CAUTION: 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.NOTE: It is recommended that you always use a static mat and static strap while working oncomponents inside the system.NOTE: To ensure proper operation and cooling, all bays in the system must be populated at alltimes with either a module or with a blank.Before working inside your system1. Turn off the system, including any attached peripherals.2. Disconnect the system from the electrical outlet and disconnect the peripherals.3. If installed, remove the front bezel.For more information, see Removing the bezel.4. Remove the system cover.For more information, see Removing the system cover.After working inside your system1. Install the system cover.For more information, see Installing the system cover.2. Install the optional bezel.3. Reconnect the system to its electrical outlet and peripherals.4. Turn the system on, including any attached peripherals.53
