2-2 Dell Dimension L Series Systems Reference and Troubleshooting GuideInstallation GuidelinesKeep a static-sensitive component in its antistatic packing material until you are readyto install the component in the computer. Just before unwrapping the antistatic pack-aging, discharge static electricity from your body.Make sure you have adequate lighting and a clean work space. If you temporarily dis-connect cables or remove expansion cards, note the position of the connectors andslots so that you can reassemble the system correctly. Also note the extra connectorsAlso note the extra connectorsavailable for upgrades.Removing and Replacing the ComputerCoverTo remove the computer cover, perform the following steps:1. Observe the “Caution for Your Personal Safety and Protection of Your Equip-Personal Safety and Protection of Your Equip-ment” found earlier in this chapter. Also, observe the safety instructions at thefront of this guide.NOTICE: To avoid inadvertently damaging the system board, be sure youdisconnect the computer’s power cable from the electrical outlet and fromthe back of the chassis before removing the computer cover. The systemboard continues to receive a small amount of power when the system isturned off and attached to an electrical outlet (the system-board powerindicator light [see Figure 2-5] is on when power is detected.)2. Face the front of the chassis. Place your left hand on the left side of the chassis.Push back the release latch at the top back edge of the chassis (see Figure 2-1) to1) torelease the computer cover into your left hand.
