Toshiba 1955 Memory card problems , Power and the batteries

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If Something Goes Wrong
Resolving a hardware conflict
5.375 x 8.375 ver 2.1.2
Memory card problems
Incorrectly connected or faulty memory modules may cause
errors that seem to be device-related. It is worthwhile
checking for these first:
1Click Start, then click Turn Off Computer.
2Click Turn Off .
The operating system shuts down and turns off the
computer automatically.
3Remove the memory module.
4Reinstall the memory module, following the instructions
in “Installing additional memory (optional)” on page 57,
and making sure it is seated properly.
5Check for the error again.
6If 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.
Power and the batteries
Your computer receives its power through the AC adapter and
power cable or from the system batteries (main battery and
real-time clock (RTC) battery). Power problems are
interrelated. For example, a faulty AC adapter or power 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 adapter and power cable.
Make sure the AC adapter and power cable are firmly
plugged into both the wall outlet and the computer.