IBM manual POST beep codes, IBM xSeries 220 User’s Reference

1-2-4	RAM refresh verification has failed.	Reseat the
		memory modules
1-3-1	First 64 Kb RAM test has failed.
		or install a
1-3-2	First 64 Kb RAM parity test has failed.	memory module.
		If the problem
3-3-1	A memory size mismatch has occurred.
		persists, call for
3-3-3	No memory has been detected in the system.	service.
	Attention: In some memory configurations, the 3-3-3 beep
	code might sound during POST followed by a blank screen.
	If this occurs, you must restart the server three times to
	force the system BIOS to reset the memory connector or
	bank of connectors from Disabled to Enabled.
4-4-4	The I2C cable is attached and, the optional system-	1.	Turn off the
	management adapter is not installed in PCI slot 2 or not		server.
	functioning correctly.	2.	Verify that
			the cable is
			installed
			correctly. If it
			is not,
			disconnect
			the cable and
			reconnect it
			correctly.
		3.	Verify that
			the optional
			system-
			management
			adapter is
			installed in
			PCI slot 2. If
			it is not,
			remove the
			system-
			management
			adapter from
			the slot and
			reinstall it in
			PCI slot 2.
		4.	Verify that
			the optional
			system-
			management
			adapter is
			functioning
			correctly. If it
			is not,
			remove it
			and call for
			service.
		If the problem
		persists, call for
		service.

Table 12. POST beep codes

78 IBM® xSeries 220 User’s Reference