Dell D520 Laptop User Manual


 
6. To replace the keyboard, connect the keyboard cable to the connector on the system board.
7. Place the tabs along the front edge of the keyboard into the palm rest, and lay the keyboard down on the palm rest.
8. Replace the two screws at the top of the keyboard.
9. Replace the hinge cover.
Memory
You can increase your computer memory by installing memory modules on the system board. See Specifications for information on the memory supported by
your computer. Install only memory modules that are intended for your computer.
The computer has two memory module connectors labeled "DIMM A" and "DIMM B." DIMM A is located on top of the system board (under the keyboard), and
DIMM B is located on the bottom of the system board under the memory module cover. If only one memory module is installed, it must be installed in DIMM A,
as configured from the factory. If you did not order additional memory, DIMM B is empty. Generally, if you add memory, you add by installing a memory module
in DIMM B. If you are upgrading memory, you may need to remove and install memory modules in both DIMM A and DIMM B, depending on the extent of the
upgrade.
To install a memory module in DIMM A:
1. Follow the procedures in Before You Begin.
2. Remove the hinge cover (see Hinge Cover).
3. Remove the keyboard (see Keyboard).
4. Ground yourself by touching one of the metal connectors on the back of the computer.
5. If you are replacing a memory module, remove the existing module:
a. Use your fingertips to carefully spread apart the securing clips on each end of the memory module connector until the module pops up.
b. Remove the module from the connector.
4
keyboard cable
5
plasticbaronkeyboardconnector
NOTICE: To avoid scratching the palm rest when replacing the keyboard, hook the tabs along the front edge of the keyboard into the palm rest, and
then secure the keyboard in place.
NOTE: Memory modules purchased from Dell are covered under your computer warranty.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
NOTICE: To prevent damage to the system board, remove the main battery before you service the computer.
NOTICE: If you leave the area, ground yourself again when you return to the computer.
NOTICE: To prevent damage to the memory module connector, do not use tools to spread the memory-module securing clips.
1
memory module
2
securing clips (2)
NOTICE: Insert memory modules at a 45-degree angle to prevent damage to the connector.