Lenovo E4430 User Manual download pdf (Page 48)

34 User Guide

6. Lift the fan assembly and heat sink assembly in the direction shown by arrow . Be careful not to

damage the connector.

To install the thermal fan, do the following:

1. Install the fan assembly and heat sink assembly. Then tighten the seven screws .

2. Attach the connector.

3. Reinstall the computer cover . Then tighten the screws .

4. Reinstall the battery. See “Replacing the battery” on page 27.

5. Turn the computer over again. Connect the ac power adapter and all cables.

Replacing a memory module

Before you start, print these instructions.

Prerequisites for the procedure

When replacing a memory module, be sure to follow the precautions.

Note: The operating speed of the memory module depends on the system configuration of the computer and

its combination with the memory module installed on the computer. In some conditions, the memory in the

computer might not be able to operate at the maximum speed.

Attention: Before you start installing a memory module, touch a metal table or a grounded metal object. This

action reduces any static electricity from your body. The static electricity could damage the memory module.

To replace a memory module, do the following:

Note: Your computer might look different from the following illustrations.

1. Turn off the computer; then disconnect the ac power adapter and all cables from the computer. Wait

three to five minutes to let the computer cool.

2. Close the computer display, and turn the computer over.

3. Remove the battery. See “Replacing the battery” on page 27.

4. Loosen the screws , and then remove the cover .

b a

a b

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Lenovo E4430 User Manual Page 48