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5. Insert a fully charged battery until it clicks into place 1 as shown in the drawing, and then slide the
battery latch to the locked position 2 .
6. Turn the computer over again. Connect the ac power adapter and the cables to the computer
Replacing the memory
Before you start, print these instructions.
Increasing memory capacity is an effective way to make programs run faster. You can increase the amount
of memory in your computer by installing a double data rate three (DDR3) synchronous dynamic random
access memory (SDRAM) unbuffered small outline dual inline memory module (SO-DIMM), available as an
option, in the memory slot of the computer. SO-DIMMs with different capacities are available. To replace or
add memory, read the following prerequisites, and then the instruction.
Prerequisites for the procedure
When replacing the memory, be sure to follow the precautions.
Note: The operating speed of the memory module depends on the system conguration of your computer
and its combination with the memory module installed on your computer. In some conditions, the memory in
your computer may not be able to operate at the maximum speed.
Attention: Before you start installing a module, touch a metal table or a grounded metal object. This action
reduces any static electricity from your body. The static electricity could damage the SO-DIMM.
Replacing the memory
To install an SO-DIMM, do the following:
1. Turn off the computer, then disconnect the ac power adapter and all cables from the computer.
2. Close the computer display, and turn it over.
3. Remove the battery. See “Replacing the battery” on page 89.
Chapter 6. Replacing devices 91