3Installing System ComponentsRecommended ToolsYou may need the following items to perform the procedures in this section:• #1 and #2 Phillips screwdrivers• Wrist grounding strap connected to groundOpening 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.NOTE: It is recommended that you always use a static mat and static strap while working on components in theinterior of the system.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 System1. Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet andperipherals.2. Lay the system on its side, on a flat and stable surface.3. Lift the cover release latch and remove the cover away from the system.27