IBM manual Troubleshooting charts, IBM xSeries 220 User’s Reference

Device		Suggested action
Option problems	Verify that:
	1.	The option is designed for the server. Refer to the "Server Support" flowchart for
An IBM option that was just
installed does not work.		information about obtaining ServerProven™ compatibility information from the
		World Wide Web.
	2.	You followed the installation instructions that came with the option.
	3.	The option is installed correctly.
	4.	You have not loosened any other installed options or cables.
	5.	You updated the configuration information in the Configuration/Setup Utility
		program. Whenever memory or an option is changed, you must update the
		configuration.
	If the problem remains, call for service.
An IBM option that used to	Verify that all of the option hardware and cable connections are secure.
work does not work now.	If the option comes with its own test instructions, use those instructions to test the
	option.
	If the failing option is a SCSI option, verify that:
	1.	The cables for all external SCSI options are connected correctly.
	2.	The last option in each SCSI chain, or the end of the SCSI cable, is terminated
		correctly.
	3.	Any external SCSI option is turned on. You must turn on an external SCSI option
		before turning on the server.
	If the problem remains, call for service.
Parallel port problems	Verify that:
	1.	Each port is assigned a unique address.
The number of parallel ports
displayed is less than the	2.	The parallel-port adapter, if you installed one, is seated properly.
number of parallel ports
installed.	If the problem remains, call for service.
Power problems	Verify that:
	1.	The power cables are properly connected to the server.
The server does not power on.
	2.	The electrical outlet functions properly.
	3.	The type of memory installed is correct.
	4.	If you just installed an option, remove it, and restart the server. If the server now
		powers on, you might have installed more options than the power supply
		supports.
	If the problem remains, call for service.

Table 16. Troubleshooting charts

104 IBM® xSeries 220 User’s Reference