NEC manual 245

Troubleshooting 8-9

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 1-5-2-2 indicates 1 beep, pause, 2 beeps, pause, 2 beeps, pause, and 3 beeps notifying that no processor is detected on the mother board.

Beep code	Description	Recommended action
1-2	Option ROM initialization	1.	Check if the optional add-in card is properly
	error		installed.
		2.	Run the BIOS SETUP utility to check the IRQ
			assignment.
		3. Ask your service representative to replace the add-
			in card or mother board..
3-3	ROM checksum error	Replace the mother board.
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 mother board.
1-3-1-3	Keyboard controller error	1.	Check if the keyboard is properly connected.
		2.	Replace the mother board.
1-3-3-1	No memory or capacity	1.	Check if the DIMM is properly installed.
	check error	2.	Remove the DIMM once, and then re-install it to
1-3-4-1	DRAM address error		check if it operates normally.
1-3-4-3	DRAM test Low Byte	3. Ask your service representative to replace the failed
	error		DIMM or mother board..
1-4-1-1	DRAM test High Byte
	error
1-5-1-1	CPU startup error	1.	Check if the CPU is properly installed.
1-5-2-1	No CPU installed	2.	Remove the CPU once, and then re-install it to
1-5-4-4	Abnormal voltage	3.	check if it operates normally.
			Ask your service representative to replace the failed
			CPU.
2-1-2-3	BIOS ROM copyright test	Replace the mother board.
	error
2-2-3-1	Unexpected interrupt test
	error