Memory expansion. Toshiba USB 3471, Satellite A100 Series

Optional Devices

Memory expansion

You can install additional memory in the computer’s memory module to increase the amount of RAM.

Only memory modules with the following parts numbers can be installed:

■ 256MB: PA3389U-1M25

■ 512MB: PA3412U-1M51

■ 1GB: PA3411U-1M1G

Installing memory module

To install a memory module, make sure the computer is in boot mode then:

1. Turn the computer off in boot mode. Refer to the

Turning off the power

section in Chapter 3.

■ If you use the computer for a long time, the memory modules will become hot. In this case, let the memory modules cool to room temperature before you replace them.

■ Do not try to install a memory module with the computer turned on or turned off in Sleep and Hibernation mode. You can damage the computer and the memory module.

2. Remove all cables connected to the computer.

3. Turn the computer upside down and remove the battery pack (refer to

Chapter 6,

Power and Power-Up Modes ).

4. Remove one screw securing the memory module cover.

5. Lift off the cover.

■ Use a point size 0 Phillips screwdriver.

■ Intel 945GM/943GML model:

Insert the two memory modules of the same specifications and capacity into Slot A and Slot B respectively. The computer will operate in dual channel mode. You can access the inserted memory modules efficiently in dual channel.

■ Intel 940GML model:

This model doesn't support dual channel mode.

User’s Manual 8-7

Optional Devices

Removing the cover

6. Insert the memory module into the connector on the computer. Press the module carefully and firmly to ensure a solid connection.

7. Push the module down so that it lies flat and is secured by two latches.

Do not touch the connectors on the memory module or on the computer.

Debris on the connectors may cause memory access problems.

User’s Manual

Inserting the memory module

8. Seat the cover and secure it with one screw.

9. When you turn the computer on, it should automatically recognize the total memory capacity. Use the HW Setup program to verify that the added memory is recognized. If it is not recognized, check the module’s connection.

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Optional Devices

Removing memory module

To remove the memory module, make sure the computer is in boot mode then:

1. Turn the computer off and remove all cables connected to the computer.

■ If you use the computer for a long time, the memory modules will become hot. In this case, let the memory modules cool to room temperature before you replace them.

■ Do not try to remove a memory module with the computer turned on or turned off in Sleep and Hibernation mode. You can damage the computer and the memory module.

2. Turn the computer upside down and remove the battery pack (refer to

Chapter 6,

Power and Power-Up Modes .)

3. Remove one screw securing the memory module cover.

4. Lift off the cover.

5. Use a slender object such as a pen to press two latches on either side of the memory module to the outside. The memory module will pop up.

6. Grasp the memory module by the sides and pull it out.

Do not touch the connectors on the memory module or on the computer.

Debris on the connectors may cause memory access problems.

User’s Manual

Removing the memory module

7. Seat the cover and secure it with one screw.

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