You may have installed a SIMM incorrectly. If the system doesn’t detect memory, it won’t start. Check that your SIMM(s) are securely installed in their sockets.

If you replaced the microprocessor, make sure the new processor chip is installed correctly. Also make sure the jumpers are set correctly and pin 1 on the chip is connected with pin 1 on the system board. See Chapter 3.

The Computer Does Not Respond

The computer locks up.

Wait a few moments; if your computer does not respond after a reasonable length of time, press Ctrl Alt Del. If that doesn’t work, press the RESET button.

You may have installed SIMMs with an incorrect access speed. Install the correct SIMMs (see Chapter 3).

Your system may have over-heated. Make sure you have an adequate heat sink installed on your microprocessor, if necessary. See Chapter 3 for more information.

You reset the computer, but if still does not respond.Try turning the computer off, wait 20 seconds, and turn it on again.Your computer suddenly stops operating.

You may have overloaded the power supply. See your option card manual(s) for the power requirements for your option card(s). Then check Appendix A to see if you have exceeded the option slot power limits.

5-4Troubleshooting