Manual HP EliteBook 720 (page 79 of 103) (English)

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10 Maintenance

Adding or replacing memory modules

The computer has one memory module compartment. The capacity of the computer can be upgraded

by adding a memory module to the vacant expansion memory module slot or by upgrading the

existing memory module in the primary memory module slot.

WARNING! To reduce the risk of electric shock and damage to the equipment, unplug the power

cord and remove all batteries before installing a memory module.

CAUTION: Electrostatic discharge (ESD) can damage electronic components. Before beginning

any procedure, ensure that you are discharged of static electricity by touching a grounded metal

object.

CAUTION: To prevent information loss or an unresponsive system:

Shut down the computer before adding or replacing memory modules. Do not remove a memory

module while the computer is on, in the Sleep state, or in Hibernation.

If you are not sure whether the computer is off or in Hibernation, turn the computer on by pressing the

power button. Then shut down the computer through the operating system.

NOTE: To use a dual-channel configuration when adding a second memory module, be sure that

both memory modules are identical.

NOTE: The primary memory is located in the bottom memory slot and the expansion memory is

located in the top memory slot.

To add or replace a memory module:

1. Save your work and shut down the computer.

2. Disconnect AC power and external devices connected to the computer.

3. Remove the battery (see

Inserting or removing the battery on page 38).

4. To remove the memory module compartment door:

a. Turn the computer upside down on a flat surface, with the memory module compartment

door toward you.

b. Loosen the 3 screws (1).

Adding or replacing memory modules 69

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HP EliteBook 720 Manual

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