2. keylock3. front bezel4. locking hookRemoving The Front Bezel1. Unlock the keylock at the left end of the bezel.2. Lift the release latch next to the keylock.3. Rotate the left end of the bezel away from the front panel.4. Unhook the right end of the bezel and pull the bezel away from the system.Opening And Closing The SystemWARNING: Whenever you need to lift the system, get others to assist you. To avoid injury, do not attempt to lift thesystem by yourself.WARNING: Opening or removing the system cover when the system is on may expose you to a risk of electricshock.CAUTION: Many repairs may only be done by a certified service technician. You should only performtroubleshooting and simple repairs as authorized in your product documentation, or as directed by the online ortelephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by yourwarranty. Read and follow the safety instructions that came with the product.CAUTION: Do not operate the system without the cover for a duration exceeding five minutes.Opening The SystemNOTE: It is recommended that you always use a static mat and static strap while working on components in theinterior of the system.1. Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.2. Rotate the latch release lock counter clockwise to the unlocked position.3. Lift the latch on top of the system and slide the cover back.4. Grasp the cover on both sides and carefully lift the cover away from the system.36