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POST error codes . . . . . . . . . . . . . . . . . . . . . . . .63
EasyStartup problems . . . . . . . . . . . . . . . . . . . . . .64
Troubleshooting tables . . . . . . . . . . . . . . . . . . . . . .65
CD-RW/DVD drive problems . . . . . . . . . . . . . . . . . . .65
General problems . . . . . . . . . . . . . . . . . . . . . . .66
Hard disk drive problems . . . . . . . . . . . . . . . . . . . .66
Intermittent problems . . . . . . . . . . . . . . . . . . . . . .67
USB keyboard, mouse, or pointing-device problems . . . . . . . . . .68
Memory problems . . . . . . . . . . . . . . . . . . . . . . .69
Microprocessor problems . . . . . . . . . . . . . . . . . . . .70
Monitor problems . . . . . . . . . . . . . . . . . . . . . . .71
Optional-device problems . . . . . . . . . . . . . . . . . . . .73
Power problems . . . . . . . . . . . . . . . . . . . . . . .73
Serial port problems . . . . . . . . . . . . . . . . . . . . . .75
Software problems . . . . . . . . . . . . . . . . . . . . . .76
Universal Serial Bus (USB) port problems . . . . . . . . . . . . . .77
Video problems . . . . . . . . . . . . . . . . . . . . . . . .77
Light path diagnostics . . . . . . . . . . . . . . . . . . . . . .77
Diagnosing problems using light path diagnostics . . . . . . . . . . .78
Light path diagnostics LEDs . . . . . . . . . . . . . . . . . . .78
Appendix A. Getting help and technical assistance . . . . . . . . . .81
Before you call . . . . . . . . . . . . . . . . . . . . . . . . .81
Using the documentation . . . . . . . . . . . . . . . . . . . . .81
Getting help and information from the World Wide Web . . . . . . . . . .82
Calling for service . . . . . . . . . . . . . . . . . . . . . . . .82
Using other services . . . . . . . . . . . . . . . . . . . . . . .83
Purchasing additional services . . . . . . . . . . . . . . . . . . .83
Lenovo product service . . . . . . . . . . . . . . . . . . . . . .83
Appendix B. Notices . . . . . . . . . . . . . . . . . . . . . .85
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . .86
Important notes . . . . . . . . . . . . . . . . . . . . . . . . .86
Waste electrical and electronic equipment (WEEE) notices . . . . . . . . .87
Battery return program . . . . . . . . . . . . . . . . . . . . . .88
German Ordinance for Work gloss statement . . . . . . . . . . . . . .89
Electronic emissions notices . . . . . . . . . . . . . . . . . . . .89
Federal Communications Commission (FCC) statement . . . . . . . . .89
Industry Canada Class A emission compliance statement . . . . . . . .90
Avis de conformité à la réglementation d'Industrie Canada . . . . . . . .90
Australia and New Zealand Class A statement . . . . . . . . . . . .90
United Kingdom telecommunications safety requirement . . . . . . . . .90
European Union EMC Directive conformance statement . . . . . . . . .90
German Class A compliance statement . . . . . . . . . . . . . . .90
Japanese Voluntary Control Council for Interference (VCCI) statement . . .91
Taiwanese Class A warning statement . . . . . . . . . . . . . . .92
Chinese Class A warning statement . . . . . . . . . . . . . . . .92
Korean Class A warning statement . . . . . . . . . . . . . . . .92
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . .93
iv ThinkServer RD120 Types 6444, 6445, 6446, and 6447: Installation Guide