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Memory modules
Description Spare part
number
2–GB memory module (PC3L, 12800, 1600–MHz) 691739–001
4–GB memory module (PC3L, 12800, 1600–MHz) 691740–001
8–GB memory module (PC3L, 12800, 1600–MHz) 693374–001
Before removing a memory module, follow these steps:
1. Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the service cover (see
Service cover on page 37).
5. Disconnect the battery cable (see
Battery on page 39).
Remove the memory module:
1. Spread the retaining tabs (1) on each side of the memory module slot to release the memory
module. (The memory module tilts up.)
2. Remove the memory module (2) by pulling the module away from the slot at an angle.
Reverse this procedure to install a memory module.
Component replacement procedures
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