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Memory module
Description Spare part number
PC3, 12800, 1666-MHz
8 MB 670034-001
4 GB 641369-001
2 GB 652972-001
PC3, 10600, 1333-MHz
8 GB 634091-001
4 GB 621569-001
Before removing a memory module, follow these steps:
1. Shut down 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 all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet
and then unplugging the AC adapter from the computer.
4. Disconnect the battery cable from the system board (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.)
CAUTION: To prevent damage to the memory module, hold it by the edges only. Do not touch
the components on the memory module.
44 Chapter 4 Removal and replacement procedures ENWW