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User Guide
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Beep Codes
If an error occurs during the POST, the server beeps, indicating the type of error.
Each number indicates the number of short beeps, and a hyphen indicates a pause. For
example, the beep interval 1-5-2-1 indicates 1 beep, pause, 5 beeps, pause, 2 beeps,
pause, and 1 beeps notifying that a checksum error occurred on ROM.
Table 35: POST Error Beep Codes
Beeps Error Recommended Action
1-2
Option ROM initialization error
1. Check if the optional add-in card is properly installed.
2. Run the BIOS setup utility to check the IRQ assignment.
3. Ask your service representative to replace the add-in card
or motherboard..
3-3 ROM checksum error Replace the motherboard.
1-2-2-3
1-3-1-1 DRAM refresh test error
1. Check if the DIMM is properly installed.
2. Remove the DIMM once, and then re-install it to check if it
operates normally.
3. Ask your service representative to replace the failed DIMM
or motherboard.
1-3-1-3 Keyboard controller error
1. Check if the keyboard is properly connected.
2. Replace the motherboard
1-3-3-1 No memory or capacity check
error
1. Check if the DIMM is properly installed.
2. Remove the DIMM once, and then re-install it to check if it
operates normally.
3. Ask your service representative to replace the failed DIMM
or motherboard
1-3-4-1
DRAM address error
1-3-4-3
DRAM test Low Byte error
1-4-1-1
DRAM test High Byte error
1-5-1-1 CPU startup error
1. Check if the CPU is properly installed.
2. Remove the CPU once, and then re-install it to check if it
operates normally.
3. Ask your service representative to replace the failed CPU.
1-5-2-1 No CPU installed
1-5-4-2 AC power interrupted
The AC power supply is interrupted due to power failure or
momentary voltage drop and the system is restarted. This is
not an error.
1-5-4-4 Abnormal voltage Replace the motherboard.
2-1-2-3 BIOS ROM copyright test error
2-2-3-1 Unexpected interrupt test error