first 64KB area, an error message displays and the computer halts with no further information.
If there are faulty RAM chips in your system, you see one of these messages:
If an I/O or parity error occurs, you see one of these messages:
Parity check 1
Parity check 2
The program also displays the number of the segment causing the problem.
Keyboard Controller and Keyboard Check
The computer checks the keyboard controller and keyboard for problems such as failure of one of the keys to release.
If there are any errors in the connection between the keyboard and the computer, this error message displays:
When this message is preceded by a number (xx), the number represents the key (in hexadecimal) that is the source of the error.
If another failure is found, you see one of these messages:
Display Card Check
The computer checks the color or monochrome display card that is installed in the system. An error number and message appear if any faults are found in the display adapter card. Number 401 represents an error in the monochrome display card, and 501 represents an error in the color display card. The messages are:
Diagnostics |