Laptop User Manual

188

If Something Goes Wrong

Memory problems

Incorrectly connected or faulty memory modules may cause errors

that seem to be hardware or even software related. It is worthwhile

checking for these first:

1 Click Start, and then click the Shut down button in the

lower-right corner of the Start menu.

The computer shuts down completely.

2 Remove the memory module, following the instructions in

“Removing a memory module” on page 58.

3 Reinstall the memory module, following the instructions in

“Installing a memory module” on page 52, and making sure the

module is seated properly.

4 Check for the error again.

5 If the error recurs, remove the memory module entirely and

check for the error again.

If removing the memory module eliminates the error, the

memory module may be faulty. If the error recurs without the

memory module installed, the error is not caused by the

memory module.

TECHNICAL NOTE: You must have at least one memory module

installed for the computer to work.

For this model, Slot A is the bottom slot. Slot B is the top slot. If only

one memory module is to be installed, it must be installed in Slot A.

Power and the batteries

Your computer receives its power through the AC adaptor and

power cord/cable or from the system batteries (battery and

real-time clock (RTC) battery). Power problems are interrelated.

For example, a faulty AC adaptor or power cord/cable will neither

power the computer nor recharge the batteries.

Here are some typical problems and how to solve them:

The AC power light does not come on when you plug in the

AC adaptor and power cord/cable.

Make sure the AC adaptor and power cord/cable are firmly plugged

into both the wall outlet and the computer.

NOTE