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You can increase your computer memory by installing memory modules on the system board. See "Specifications" in yourOwner's Manual for information on the memory supported by your computer. Install only memory modules that are intendedfor your computer. NOTE: Memory modules purchased from Dell are covered under your computer warranty. Your computer has two user-accessible SODIMM sockets, DIMM A and DIMM B, accessed from the bottom of the computer. NOTICE: If you need to install memory modules in two connectors, install a memory module in the connector labeled"DIMM A" before you install a module in the connector labeled "DIMM B." Removing Memory Module(s) The memory modules are located under the bottom cover on the computer. 1. Follow the procedures in Before You Begin . 2. Turn the computer over, loosen the eight captive screws on the bottom cover and remove it. 1 cover 2 captive screws (8) NOTICE: To prevent damage to the memory module connector, do not use tools to spread the memory module securing clips. NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touchingan unpainted metal surface (such as a connector on the back of the computer). 3. Use your fingertips to carefully spread apart the securing clips on each end of the memory module connector until themodule pops up. 4. Remove the module from the connector. 1 securing clips (2) 2 memory module Replacing Memory Module(s) NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touchingan unpainted metal surface (such as a connector on the back of the computer). 1. Align the notch in the module edge connector with the tab in the connector slot. 2. Slide the module firmly into the slot at a 45-degree angle, and rotate the module down until it clicks into place. If youdo not feel the click, remove the module and reinstall it. NOTE: If the memory module is not installed properly, the computer may not boot. No error message indicates thisfailure. 1 tab 2 notch NOTICE: If the cover is difficult to close, remove the module and reinstall it. Forcing the cover to close may damageyour computer. 3. Replace the bottom cover and tighten the eight captive screws. 4. Insert the battery into the battery bay, or connect the AC adapter to your computer and an electrical outlet. 5. Turn on the computer. As the computer boots, it detects the additional memory and automatically updates the system configuration information. To confirm the amount of memory installed in the computer, right-click the My Computer icon on your desktop. ClickProperties® General. Back to Contents Page Back to Contents Page Wireless Mini-Card Dell™ 500 Service Manual CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in theProduct Information Guide. NOTICE: To help prevent damage to the system board, you must remove the battery from the battery bay before youbegin working inside the computer. If you ordered a wireless Mini-Card with your computer, the card is already installed. Your computer supports Wireless LocalArea Network (WLAN) Mini-Card. Removing Mini-Card 1. Follow the procedures in Before You Begin . 2. Turn the computer over. 3. Loosen the eight captive screws securing the back and remove the cover. 1 cover 2 captive screws (8) 4. Disconnect the antenna cables from the Mini- Card. NOTE: The Mini-Card may have two or three connectors, depending on the type of card you ordered. 1 antenna cable connectors 2 securing screw 5. Release the Mini- Card by removing the securing screw. 6. Lift the card out of its system board connector. 1 Mini-Card Replacing Mini-Card NOTICE: The connectors are keyed to ensure correct insertion. If you feel resistance, check the connectors on the cardand on the system board, and realign the card. NOTICE: To avoid damage to the Mini-Card, never place cables under the card. 1. Insert the card connector into the system board connector at a 45-degree angle. 2. Press the other end of the card down into the slot on the system board until the card clicks into place. 3. Replace the securing screw. 4. Connect the cables to the Mini-Card, ensuring that you route the cables correctly. NOTE: For more specific information about which cable to connect to which connector, see the documentationthat came with your Mini-Card. 5. Secure unused antenna cables in the protective mylar sleeve. 6. Replace the cover and tighten the eight captive screws. Back to Contents Page Back to Contents Page Speaker Assembly Dell™ 500 Service Manual Removing the Speaker Assembly CAUTION: Before you begin the following procedure, follow the safety instructions in the ProductInformation Guide. 1. Follow the instructions in Before You Begin . 2. Remove the center control cover (see Removing the Center Control Cover ). 3. Remove the keyboard (see Removing the Keyboard ). 4. Remove the Mini-Card (see Removing Mini-Card ). 5. Disconnect the speaker cab...