Message Cause Action

1-2-2-3 ROM BIOS checksum failure 1-3-1-3 Keyboard controller test failure 1-3-4-1 RAM failure on address line nnnn 1-3-4-3 RAM failure on data bits nnnn of Run the System Board Devices device group in the Dell Diagnostics. (See Running the Dell Diagnostics found later in this chapter for instructions.) If the program does not load, call Dell for technical assistance. (For instructions, see Chapter 5, Getting Help.) Run the System Board Devices device group in the Dell Diagnostics. (See Running...

Change the Serial Port and Parallel Port Mode options to the appropriate settings and then reboot the system

Check the contents of your initialization and start-up files. (See Installing and Configuring Software found earlier in this chapter.) Are the port configuration commands correct 4. Change the necessary statements in the start-up files. If the port problem is confined to a particular application program, see the application program's documentation for specific port configuration requirements. 5. Insert your diagnostics diskette into drive A, reboot the computer, and run the Serial Ports device...

Troubleshooting a Power Failure

Occasionally, you may experience a power failure in all or part of the computer. A total power failure is indicated by the absence of electrical activity (such as status indicators and sounds) from the keyboard, display, hard-disk drive, and diskette drive. In a partial power failure, one or more of these indicators shows that there is power to a part of the computer. To determine if there is any power to the computer, make a copy of the Diagnostics Checklist found in Chapter 5 and fill it out...