Dell E1405, 640M owner manual 119

3Remove the hinge cover. See "Hinge Cover" on page 125.

NOTE: Ensure that you remove the two screws in the battery bay as part of the hinge removal procedure.

4Remove the keyboard. See "Keyboard" on page 127.

NOTICE: To prevent damage to the memory module connector, do not use tools to spread the memory-module securing clips.

5If you are replacing a memory module, remove the existing module:

a Use your fingertips to carefully spread apart the securing clips on each end of the memory module connector until the module pops up.

b Remove the module from the connector.

1

2

1 memory module	2 securing clips
	(2 per connector)

NOTICE: If you need to install memory modules in two connectors, install a memory module in the connector labeled “DIMM A” before you install a module in the connector labeled “DIMM B.” Insert memory modules at a 45-degree angle to avoid damaging the connector.

NOTE: If the memory module is not installed properly, the computer may not boot properly. No error message indicates this failure.

6Ground yourself and install the new memory module:

a Align the notch in the module edge connector with the tab in the connector slot.

b Slide the module firmly into the slot at a 45-degree angle, and rotate the module down until it clicks into place. If you do not feel the click, remove the module and reinstall it.

Adding and Replacing Parts

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