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ERROR - Does not boot from the expected boot device.
Reason
Solution
Boot sequence not correctly set.
Change the boot sequence. See
Chapter 4.
Operating system not on the system drive.
Install the operating system as described in
Chapter 7.
ERROR - Series of beeps and error message displays.
Message
Explanation and Solution
Refresh Failure
Bad memory refresh circuitry on the system
board. Remove and reinstall SIMM(s). If
error persists, replace the SIMM(s).
Parity Error
Parity error in the first 64 KB block of
memory. Remove and reinstall SIMM(s).
If error persists, replace SIMM(s).
Base 64 KB Memory Error
Memory failure in the first 64 KB. Remove
and reinstall the SIMM(s). If error persists,
replace the SIMM(s).
Timer Not Operational
Memory failure in the first 64 KB, or Timer
1 on the system board is not functioning.
Call the Customer Response Center.
Processor Error
The CPU on the system board generated an
error. Call the Customer Response Center.
8042 - Gate A20 Failure
The BIOS cannot switch to protected mode,
or the keyboard controller is
malfunctioning. Call the Customer
Response Center.
Processor Exception Interrupt
The CPU generated an exception interrupt.
Call the Customer Response Center.
Display Memory Read/Write Error
The video adapter is faulty. Call the
Customer Response Center.
ROM Checksum Error
The ROM checksum value does not match
the value encoded in the BIOS. Call the
Customer Response Center.
CMOS Shutdown Register Read/Write
Error
The shutdown register for CMOS RAM
failed. Call the Customer Response Center.
Cache Error/External Cache Bad
The external cache is faulty. Call the
Customer Response Center.
