If a fault in the main board is found, a number from 101 to 108 and an error message appear. This message is in the following format:

l0x-System board error

where x is a number from 1 to 8 that represents the specific LSI circuit in which the error is found. Your service dealer needs this information to find and correct the problem.

If an I/O ROM checksum error occurs, you see this message:

xxxx0 ROM error

where xxxx is the number of the segment of the bad I/O ROM.

Clock and CMOS RAM Check

When the system device check is completed successfully, the computer checks the timer and CMOS RAM. If the information contained in the RAM does not match the actual system installation, you see one of these messages:

161-System options not set (Run SETUP in DIAGNOSTICS)

162-System options not set (Run SETUP in DIAGNOSTICS)

The information stored in the CMOS RAM must be corrected. Run the Setup program provided on the Reference diskette to correct the installation information.

If the system clock has not been set, you see this message:

163-Timer & Date not set (Run SETUP in DIAGNOSTICS)

If the memory allocation has not been set, you see this message:

lb&Memory size error(Run SETUP in DIAGNOSTICS)

B-2 Power-on Diagnostics