IBM 704 manual Troubleshooting Charts, Option Diskettes, Diagnostic Error Messages, Or higher

Overview of the Diagnostic Tools

Diagnostic Error Messages

Diagnostic error messages appear when a test program finds a problem with a hardware option. Normally, these messages are text, but they can be numeric. The test programs will generate one of the following return codes:

0	A return code of “0” indicates that the device
	passed its test.
1	A return code of “1” indicates that the device
	failed its test.
2 or higher	A return code of “2” or higher indicates that the
	test stopped.

Software-Generated Error Messages

These messages appear if a problem or conflict is found by an application program, the operating system, or both. For an explanation of these messages, refer to the information that comes with your software package.

Troubleshooting Charts

The troubleshooting charts given in “Troubleshooting” on page 245 list symptoms of problems (for example, perhaps the symptom is “the mouse is not working”), as well as steps to correct the problems.

Option Diskettes

An optional device or adapter might come with a diskette. Option Diskettes usually contain diagnostic files or configuration files that the system needs to recognize and activate the option.

If your optional device or adapter comes with an Option Diskette, you might need to install some configuration (.CFG) files or diagnostic files (.EXE or .COM). See Chapter 4, “Installing Options” on page 73 for instructions on installing the configuration or see “Installing Additional Test Programs” on page 263 for installing diagnostic files.

218PC Server 704 User's Handbook