43 lines
2.0 KiB
Plaintext
43 lines
2.0 KiB
Plaintext
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AST RESEARCH, INC. TECHNICAL BULLETIN #0714A 12-20-91
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=============================================================================
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PREMIUM EXEC 386SX AND LOSS OF SETUP
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Loss of CMOS setup or Password Enabled error messages have been reported on
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some new Premium Exec 386SX systems. This problem occurs because the Premium
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Exec is designed with a rechargeable Ni-Cad CMOS backup battery that has a
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shelf life of approximately 42 days (worst case) from the date of
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manufactured.
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Under some circumstances when CMOS has been lost, the message "PLEASE ENTER
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PASSWORD:" may appear prior to any of the error messages listed below. If
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this occurs, it will be necessary to toggle the Password Override Switch to
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override the password prior to running ASTSETUP. Please consult the Premium
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Exec User's Manual for additional information on this procedure.
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The problems are resolved by simply powering up the system using the AC
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Adapter and pressing Ctrl-Alt-Esc to run ASTSETUP after the following
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messages appear:
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40.08 TESTING CMOS CHECKSUM CHECKSUM...FAILED
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40.01 CMOS RAM ERROR CHECK BATTERY AND RUN SETUP
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20.03 MEMORY SIZE ERROR - RUN SETUP
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PRESS F1 TO CONTINUE OR CTRL ALT ESC FOR SETUP
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Please Note: If the F1 key is pressed, the system will attempt to boot first,
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from the floppy drive, then the hard drive. If no floppy disk is
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present, the system will display "Disk Boot Error, Please Insert
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a System Disk and press Enter". If this occurs insert the
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Premium Utilities Diskette in drive A: and hit the Enter key and
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choose "Run System Setup" from the menu that appears on the
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screen.
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To assure complete charging of the backup battery, it is recommended that
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after running ASTSETUP, that the system remain plugged into the AC Adapter
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for approximately 8 hours.
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