党和国家领导人Dell 640m更换内存教程

Memory Module

Dell? Inspiron? 640M/E1405 Service Manual

Removing a Memory Module

Replacing a Memory Module

Your Dell computer comes equipped with two memory slots/connectors labeled DIMM A and

DIMM B. DIMM A (located under the keyboard) holds the primary memory module as

configured from the factory. DIMM B (located on the bottom of the computer) holds any

additional memory you may have ordered. If you did not order additional memory, DIMM B

will be empty.

Generally, if you are adding memory, you

will install a memory module in DIMM B only. If you

are upgrading the memory, you may need to install memory modules in DIMM A and DIMM B,

depending on the extent of the upgrade.

NOTE:

Memory modules purchased from Dell? are covered und

er your computer

warranty.

Removing a Memory Module

CAUTION:

Before you perform any of the procedures in this section, follow the

safety instructions in the Product Information Guide.

NOTICE:

To avoid electrostatic discharge, ground yourself by using a wrist grounding

strap or by periodically touching an unpainted metal surface, such as the back panel on

the computer.

Memory Module DIMM B

1.

Follow the instructions in

Preparing to Work Inside the Computer

.

2.

Loosen the two captive screws securing the memory module cover, then remove the

cover and set it aside.

1

memory module cover

2

captive screws (2)

NOTICE:

To prevent damage to the memory module connector, do not use tools of any

kind to spread the metal clips that secure the module.

3.

Use your fingertips to carefully spread apart the metal clips securing each

end of the

memory module until the module pops up.

1

memory module

2

metal retention clips (2)

4.

Remove the module from the connector at a 45-degree angle.

Memory Module DIMM A

1.

Follow the instructions in

Preparing to Work Inside the Computer

.

2.

Remove the hinge cover (see

Removing the Hinge Cover

).

3.

Remove the keyboard (see

Removing the Keyboard

).

4.

Loosen the two captive screws securing the metal memory module cover, then

remove the cover and set it aside.

1

metal memory module cover

2

captive screws (2)

NOTE:

The metal memory module cover may not be present on your computer.

NOTICE:

To prevent damage to the memory module connector, do not use tools of any

kind to spread the metal clips that secure the module.

5.

Use your fingertips to carefully spread apart the metal clips securing each

end of the

memory module until the module pops up.

1

memory module

2

metal retention clips (2)

6.

Remove the memory module from the connector at a 45-degree angle.