You reset the computer, but its still does not respond.

Try turning the computer off, wait 20 seconds, and turn it on again.

Your system suddenly stops operating.

You may have overloaded the power supply. See your option card manuals for the power requirements of your cards. Then check “Option Slot Power Limits” in Appendix A to see if they exceed the option slot power limits of your computer.

Keyboard Problems

The screen displays a keyboard error message when you turn on or reset the computer.

Make sure the keyboard is securely connected to the keyboard port and not the mouse port. Although these ports look alike, they cannot be used interchangeably.

The cursor keys on the numeric keypad do not work properly.

If the Num Lock light in the upper right corner of the keyboard is lit, press Num Lock to turn off the function.

Mouse Problems

Your mouse isn‘t working properly.

Make sure the mouse cable is securely connected to the mouse port and not the keyboard port. See “Connecting a Keyboard or Mouse” in Chapter 1 for instructions. Also make sure your mouse ball is clean. If you are using an MS-DOS application, make sure your mouse drivers are installed correctly.

7-6 Troubleshooting