Epson Equity Ie Q50188015-1 - Manual (Page 93)

System Board Check
Use this option to check the operation of each major component on the
system board, including:
l
The 8086 CPU chip
l
The system ROM
l
The real-time clock, CMOS RAM, and battery
l
The main integrated circuits.
The checks made on the 8086 CPU chip are extremely comprehensive and
ensure that the CPU instruction set is functioning correctly. If an error
occurs, write down the error message, or print it out, and contact your
Epson dealer. Attempting to correct system board errors yourself may violate
your warranty agreement.
Memory Check
Use this option to check the computer’s built-in memory.
Note
This option does not check expanded memory above the 640KB memory
limit imposed by MS-DOS.
For this check, the program writes specific data into memory and then reads
it back. The data is written and read in blocks of 64KB. A parity check is
also made on each block. A count of memory is displayed after each block
that is tested without an error. The final message is usually:
640KB OK
If an error occurs, write down the error message, or print it out, and contact
your Epson dealer. Attempting to correct memory errors yourself may
violate your warranty agreement.
Performing System Diagnostics D-5