Table 2-8. System Beep Codes
Code
Cause
1-1-2
CPU register test failure
1-1-3
CMOS write/read failure; faulty system board
1-1-4
BIOS error
1-2-1
Programmable interval-timer failure; faulty system
board
1-2-2
DMA initialization failure
1-2-3
DMA page register write/read failure
1-3-1
Main-memory refresh verification failure
1-3-2
No memory installed
1-3-3
Chip or data line failure in the first 64 KB of main
memory
1-3-4
Odd/even logic failure in the first 64 KB of main
memory
1-4-1
Address line failure in the first 64 KB of main
memory
1-4-2
Parity failure in the first 64 KB of main memory
1-4-3
Fail-safe timer test failure
1-4-4
Software NMI port test failure
2-1-1
Bit failure in the first 64 KB of main memory
through
2-4-4
3-1-1
Slave DMA-register failure
3-1-2
Master DMA-register failure
3-1-3
Master interrupt-mask register failure
3-1-4
Slave interrupt-mask register failure
3-2-2
Interrupt vector loading failure
3-2-4
Keyboard-controller test failure
3-3-1
CMOS failure
3-3-2
System configuration check failure
3-3-3
Keyboard controller not detected
3-3-4
Video memory test failure
3-4-1
Screen initialization failure
3-4-2
Screen-retrace test failure
3-4-3
Video ROM search failure
4-2-1
No timer tick
4-2-2
Shutdown test failure
Gate A20 failure
4-2-3
4-2-4
Unexpected interrupt in protected mode
4-3-1
Improperly installed or faulty memory modules
4-3-2
No memory modules installed in the first memory
module connector
4-3-3
Faulty system board
4-3-4
Time-of-day clock stopped
4-4-1
Super I/O chip failure; faulty system board
4-4-4
Cache test failure; faulty microprocessor
Warning Messages
A warning message alerts you to a possible problem and asks you to take corrective action before the system continues a task. For example, before you
format a diskette, a message may warn you that you may lose all data on the diskette. Warning messages usually interrupt the procedure and require you to
respond by typing y (yes) or n (no).
NOTE:
Warning messages are generated by either the application program or the operating system. For more information, see
Solutions" and the documentation that accompanied the operating system or application program.
Corrective Action
See
"Troubleshooting a
Microprocessor" in "Troubleshooting Your System."
See
"Getting
Help."
Reflash the BIOS firmware (see
"Getting
See
"Getting
Help."
See
"Troubleshooting System
Memory" in "Troubleshooting Your System."
See
"Getting
Help."
See
"Troubleshooting the
Keyboard" in "Troubleshooting Your System."
See
"Getting
Help."
See
"Troubleshooting Expansion
See
"Troubleshooting System
Memory" in "Troubleshooting Your System."
Install a memory module in the first memory module connector (see
in "Installing System Options").
See
"Getting
Help."
See
"Troubleshooting the System
See
"Getting
Help."
See
"Troubleshooting a
Microprocessor" in "Troubleshooting Your System."
Help").
Cards" in "Troubleshooting Your System."
Battery" in "Troubleshooting Your System."
"Finding Software
"Memory
Modules"