IBM 8490, 8485 manual Abbreviated list of Post error codes

Table 2. Abbreviated list of POST error codes (continued)

vFollow the suggested actions in the order in which they are listed in the Action column until the problem is solved.

vSee the parts listing in the Problem Determination and Service Guide to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU).

vIf an action step is preceded by “(Trained service technician only),” that step must be performed only by a trained service technician.

Error code	Description	Action
289	A DIMM has been disabled by the	1.	If the DIMM was disabled by
	user or by the system.
			the user, run the
			Configuration/Setup Utility
			program and enable the DIMM.
		2.	Make sure that the DIMM is
			installed correctly (see
			“Installing a memory module”
			on page 13).
		3.	Replace the DIMM.
		4.	(Trained service technician
			only) Replace the system
			board.
301	Keyboard or keyboard controller	1.	If you have installed a USB
	error.
			keyboard, run the
			Configuration/Setup Utility
			program and enable
			keyboardless operation to
			prevent the POST error
			message 301 from being
			displayed during startup.
		2.	Reseat the keyboard cable.
		3.	Replace the following
			components one at a time, in
			the order shown, restarting the
			server each time:
			a.	Keyboard
			b.	(Trained service technician
				only) System board
303	Keyboard controller failure.	1.	Reseat the keyboard.
		2.	Replace the keyboard.
		3.	(Trained service technician
			only) Replace the system
			board.

Chapter 5. Solving problems 53