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If the system emits a beep code and then fails to start, write down the beep code and look it up in Table 2.
Table 2. System Beep Codes
Beep
Code
Possible Cause
1
Memory refresh failure
2
Parity cannot be reset
3
Memory failure within the first
64 KB of memory
4
Timer not operational
5
Processor failure
6
8442 keyboard controller
error
7
Processor exception error
8
Video display memory error
9
Optional ROM checksum
error
10
CMOS memory error
11
BIOS checksum error
System Messages
The first column in Table 3 lists (in alphabetical order) system messages that may appear on the screen during the boot routine or during normal
system operation. The second column in the table lists probable causes of the messages, and the third column either provides a corrective action
or refers you to a source for resolving the problem.
Table 3. System Messages
Message
8042 Gate-A20 Error
Address Line Short!
C: Drive Error
C: Drive Failure
Cache Memory Bad, Do
Not Enable Cache
Ch-2 Timer Error
CMOS Battery State
Low
CMOS Checksum
Failure
CMOS Display Type
Mismatch
CMOS Memory Size
Mismatch
CMOS System Options
Not Set
Corrective Action
Reseat the
DIMMs.
Reseat the
DIMMs.
Reseat the
DIMMs.
See Chapter 7, "Getting Help," of the Reference and Troubleshooting
Guide for instructions on obtaining technical assistance.
See Chapter 7, "Getting Help," of the Reference and Troubleshooting
Guide for instructions on obtaining technical assistance.
See Chapter 7, "Getting Help," of the Reference and Troubleshooting
Guide for instructions on obtaining technical assistance.
See Chapter 7, "Getting Help," of the Reference and Troubleshooting
Guide for instructions on obtaining technical assistance.
See Chapter 7, "Getting Help," of the Reference and Troubleshooting
Guide for instructions on obtaining technical assistance.
See Chapter 7, "Getting Help," of the Reference and Troubleshooting
Guide for instructions on obtaining technical assistance.
See Chapter 7, "Getting Help," of the Reference and Troubleshooting
Guide for instructions on obtaining technical assistance.
See Chapter 7, "Getting Help," of the Reference and Troubleshooting
Guide for instructions on obtaining technical assistance.
Possible Cause
The keyboard controller failed its test.
Error in the address decoding circuitry in the
memory.
The hard-disk drive is not working or is not
configured correctly.
Cache memory is not operating.
System board timer error occurred.
The system configuration information in the
system setup program is incorrect, or the
battery charge may be low.
Corrective Action
If you receive this message after making changes in the
setup
program, enter the program and restore the original value
(s).
Reseat the
DIMMs.
Ensure that the
drive
is installed correctly in the chassis and
defined correctly in the
system setup
See Chapter 7, "Getting Help," of the Reference and
Troubleshooting Guide for instructions on obtaining technical
assistance.
See Chapter 7, "Getting Help," of the Reference and
Troubleshooting Guide for instructions on obtaining technical
assistance.
Enter the
system setup program
configuration; then restart the system.
system
program.
and verify the system
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