Expansion memory modules
NOTE:
Expansion memory slots are located in a compartment on the bottom of the computer.
A computer having a system board with spare part number 652637-001, 656213-002, 684318-001, or
684320-001 has two memory module slots, which are called primary memory slots in this MSG.
When you add or replace memory modules, slot 1 must be populated before slot 2 is populated.
A computer having a system board with spare part number 652638-001, 656214-002, 684319-001, or
684321-001 has four memory slots. On these computers, in both the expansion memory slots (on the
bottom of the computer) and the primary memory slots (under the keyboard), slot 1 must be
populated before slot 2 is populated.
Description
Spare part number
2 GB (PC3-10600, 1333 MHz, DDR3)
621565-001
4 GB (PC3-10600, 1333 MHz, DDR3)
621569-001
8 GB (PC3-10600, 1333 MHz, DDR3)
634091-001
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.
Remove the battery (see
Battery on page 48
).
5.
Remove the service access cover (see
Service access cover on page 50
).
Remove the memory module:
1.
Position the computer upside-down, with the front toward you.
2.
Spread the retaining tabs
(1)
on each side of the memory module slot to release the memory
module. (The edge of the module opposite the slot rises away from the computer.)
Component replacement procedures
51
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