Activating 1333 MHz operation in two-DIMM-per-channel configuration . . . . 272Updating IBM Systems Director . . . . . . . . . . . . . . . . . . 273Updating the Universal Unique Identifier (UUID) . . . . . . . . . . . . 274Updating the DMI/SMBIOS data . . . . . . . . . . . . . . . . . . 276Appendix A. Getting help and technical assistance . . . . . . . . . . 281Before you call . . . . . . . . . . . . . . . . . . . . . . . . 281Using the documentation . . . . . . . . . . . . . . . . . . . . . 281Getting help and information from the World Wide Web . . . . . . . . . 281Software service and support . . . . . . . . . . . . . . . . . . . 282Hardware service and support . . . . . . . . . . . . . . . . . . . 282IBM Taiwan product service . . . . . . . . . . . . . . . . . . . . 282Appendix B. Notices . . . . . . . . . . . . . . . . . . . . . . 283Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . 283Important notes . . . . . . . . . . . . . . . . . . . . . . . . 284Particulate contamination. . . . . . . . . . . . . . . . . . . . . 285Documentation format . . . . . . . . . . . . . . . . . . . . . . 285Electronic emission notices . . . . . . . . . . . . . . . . . . . . 286Federal Communications Commission (FCC) statement . . . . . . . . 286Industry Canada Class A emission compliance statement . . . . . . . . 286Avis de conformité à la réglementation d'Industrie Canada . . . . . . . 286Australia and New Zealand Class A statement . . . . . . . . . . . . 286United Kingdom telecommunications safety requirement . . . . . . . . 286European Union EMC Directive conformance statement . . . . . . . . 287Germany Class A statement . . . . . . . . . . . . . . . . . . 287Japan VCCI Class A statement . . . . . . . . . . . . . . . . . 288Japan Electronics and Information Technology Industries Association (JEITA)statement . . . . . . . . . . . . . . . . . . . . . . . . 288Korea Communications Commission (KCC) statement . . . . . . . . . 288Russia Electromagnetic Interference (EMI) Class A statement . . . . . . 289People's Republic of China Class A electronic emission statement . . . . 289Taiwan Class A compliance statement . . . . . . . . . . . . . . . 289Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . 291vi IBM System x3550 M3 Types 4254 and 7944: Problem Determination and Service Guide