IBM 220 manual Before turning on the server

POST message			Description
162	A change in device configuration occurred. This error occurs under one or more of the following
	conditions:
	•	A new device has been installed.
	•	A device has been moved to a different location or cable connection.
	•	A device has been removed or disconnected from a cable.
	•	A device is failing and is no longer recognized by the server as being installed.
	•	An external device is not turned on.
	•	An invalid checksum is detected in the battery-backed memory.
	Action:		Verify that all external devices are turned on. You must turn on external devices
			before turning on the server.
	If you did not add, remove, or change the location of a device, a device is probably failing.
	Running the Diagnostic program might isolate the failing device.
	If you cannot isolate and correct the problem, call for service.
163	The time of day has not been set.
	Action:		Set the correct date and time. If the date and time are set correctly and saved, but the
			163 error message reappears, call for service.
	You can use the server until the system is serviced, but any application programs that use the date
	and time will be affected.
164	A change in the memory configuration occurred. This message might appear after you add or
	remove memory.
	Note:		The server can be used with decreased memory capacity.
	Action:		1. If POST error message 289 also occurred, follow the instructions for that error
			message first.
			2. If you just installed or removed memory, run the Configuration/Setup Utility
			program; then, exit, saving the new configuration settings.
			If the message appears again, shut down the server, reseat the memory
			modules, and restart the server.
	If the problem persists, call for service.
175	A vital product data (VPD) error occurred.
	Action:		Call for service.
176 177 178	A security hardware error occurred.
	Action:		Check for indications that someone has tampered with the server. If no one has
			tampered with the server, call for service.
184	The power-on password information stored in your server has been removed.
	Action:		From the Configuration/Setup Utility program main menu, select System Security.
			Then, follow the instructions on the screen.
	If this information cannot be restored, call for service.
185	A power failure damaged the stored information about the drive-startup sequence.
	Action:		From the Configuration/Setup Utility program main menu, select Start Options;
			then, follow the instructions on the screen.
	If this information cannot be restored, call for service.
Table 13. POST error messages
80 IBM® xSeries 220 User’s Reference