Samsung N640 User Manual download pdf (Page 96)

96 Troubleshooting

Some of the letter keys type numbers instead of the indicated letters.

Is the Num Lock light on? If so, the numeric keypad on the keyboard is active. To

return the keypad keys to typing letters, press <Num Lock>.

Battery power seems to run out faster than expected.

If you are running the computer from the battery rather than the power cord, make

sure that you set the Idle Mode field in System Setup to On. This setting enables

the microprocessor and the hard drive to slow down when the computer is not

busy.

You can also enable other power-saving options through System Setup. Set the

timeout times in the Standby Timeout and Rest Timeout fields to the shortest times

to ensure maximum power savings.

Certain software programs “hang” during operations when there is no

interaction with the keyboard or peripheral devices.

Your computer may be in standby or rest mode. Tap the touchpad to resume from

standby or press the power button to resume from rest.

A serial or parallel device attached to a serial or parallel port on the rear

panel of the system unit does not work properly.

Check the attached device. Is it turned on? Is the cable properly installed between

the device and the port? If you are using an operating system that is not plug and

play compliant, make sure the Plug & Play O/S field in System Setup is set to No.

Check to make sure that the port is enabled in System Setup.

A PC Card does not work correctly.

Make sure that the PC Card is inserted left side up in the PC Card slot. Check that

the card is inserted fully into the slot. If you are using a PC Card modem, check

the modem cable connections. For the Windows 98/ Me operating system, try

setting the Plug & Play OS field in System Setup to Yes to enable Windows 98/

Me to autosense an older PC Card. For the Windows NT operating system, make

sure Plug & Play O/S in System Setup is set to No.

The System Setup settings are not retained when you turn off the computer.

The CMOS battery inside the computer may need to be replaced. The CMOS

battery provides power to save the system BIOS information when the computer

is turned off. Normally, the CMOS battery lasts for several years. Do not attempt

to open the chassis and replace this battery yourself or your warranty is void. Have

an authorized the manufacturer’s service center replace the CMOS battery.

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Samsung N640 User Manual Page 96