HP 701977-051 ユーザーズマニュアル

A computer having a system board with spare part number 690034-001 or 688745-001 has two
memory slots (primary memory slots). When adding or replacing memory modules, slot 1 must be
populated before slot 2 is populated.

A computer having a system board with spare part number 688746-001 or 690035-001 has four
memory slots (expansion memory slots) (on the bottom of the computer) and the primary memory
slots (under the keyboard). Slot 2 cannot be populated if slot 1 is not populated.

8192 MB memory module (PC3-12800, 1600 MHz, DDR3)

670034-001

4096 MB memory module (PC3-12800, 1600 MHz, DDR3)

641369-001

2048 MB memory module (PC3-12800, 1600 MHz, DDR3)

652972-001

A memory module must be installed in the bottom primary memory module slot before a

memory module is installed in the top primary memory module slot.

Before removing a primary memory module, follow these steps:

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.

Disconnect all external devices connected to the computer.

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.

Remove the battery (see 

Remove the service access cover (see 

Remove the hard drive (see 

Remove the keyboard (see 

Remove the primary memory module:

Spread the retaining tabs (1) on each side of the primary memory module slot to release the
primary memory module. (The edge of the module opposite the slot rises away from
the computer.)

Remove the primary memory module (2) by pulling the module away from the slot at an angle.

Memory modules are designed with a notch (3) to prevent incorrect installation into the

primary memory module slots.

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Chapter 4   Removal and replacement procedures