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Parallel Port Check
Next, the computer checks its parallel port. If an error is found, you see this
message:
901-Parallel port error
Serial Port Check
The computer then checks its serial port. If an error is found, you see this
message:
1101-Serial port error
Diskette Drive Seek Check
The computer checks its diskette drives by searching the read/write heads
for any malfunction. If any seek errors are found, you see one of these
messages:
601-Diskette error
602-Diskette error
If this error occurs, confirm that the system diskette is inserted into drive A.
If the message still appears after you insert the diskette, you may then
want to run the floppy disk drive and controller check using the system
diagnostics program on the Reference diskette (see Appendix D). If the error
persists, consult your dealer about having the drive repaired.
Hard Disk Controller and Hard Disk Check
The computer next checks the hard disk controller and drive unit. If a
malfunction is found in the hard disk controller, you see one of these error
messages:
1701-Disk error
1790-Disk error
Power-On Diagnostics
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