Dell PowerEdge 750 - Manual (Page 25)

System Beep Codes
If an error that cannot be reported on the screen occurs during POST, the system may emit a series of beeps that identifies the problem.
If a beep code is emitted, write down the series of beeps and then look it up in Table 2 -4 . If you are unable to resolve the problem by looking up the meaning
of the beep code, use system diagnostics to identify the possible cause. If you are still unable to resolve the problem, see "Getting Help."
Table 2-4. Server Module Beep Codes
NOTE: If the system boots without a keyboard, mouse, or monitor attached, the system does not issue beep codes related to those peripherals.
Code Cause Corrective Action
1-1-2 CPU register test failure See " Troubleshooting the Processor " in "Troubleshooting Your System."
1-1-3 CMOS write/read failure; faulty system
board
Faulty system board. See " Troubleshooting the System Board " in "Troubleshooting Your System."
1-1-4 BIOS error Reflash the BIOS.
1-2-1 Programmable interval-timer failure;
faulty system board
Faulty system board. See " Troubleshooting the System Board " in "Troubleshooting Your System."
1-2-2 DMA initialization failure See " Troubleshooting System Memory " in "Troubleshooting Your System."
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
through
2-4-4
Bit failure in the first 64 KB of main
memory
3-1-1 Slave DMA-register failure Faulty system board. See " Troubleshooting the System Board " in "Troubleshooting Your System."
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
4-2-3 Gate A20 failure
4-2-4 Unexpected interrupt in protected mode See " Troubleshooting Expansion Cards " in "Troubleshooting Your System."
4-3-1 Improperly installed or faulty memory
modules
See " Troubleshooting System Memory " in "Troubleshooting Your System."
4-3-2 No memory modules installed in the first
memory module connector
Install a memory module in the first memory module connector. See " Installing Memory Modules "
and " Memory Module Installation Guidelines " in "Installing System Components."
4-3-3 Faulty system board Faulty system board. See " Troubleshooting the System Board " in "Troubleshooting Your System."
4-3-4 Time-of-day clock stopped See " Troubleshooting System Memory " in "Troubleshooting Your System." If the problem persists,
see " Troubleshooting the System Board " in "Troubleshooting Your System."
4-4-1 Super I/O chip failure; faulty system
board
Faulty system board. See " Troubleshooting the System Board " in "Troubleshooting Your System."
4-4-4 Cache test failure; faulty processor See " Troubleshooting the Processor " in "Troubleshooting Your System."