installing (continued)non-hot-swap hard disk drive 16operating system 40options 7rear hard disk drive cage 17riser cards 25, 26integrated functions 4intermittent problems 59Kkeyboard problems 60LLEDsac power 35activity 36CD drive activity 33dc power 35DVD drive activity 33front 33hard disk drive activity 34hard disk drive status 14light-path power 69link 35locator 34, 35operator information panel 33, 34power 34rear 35system error 34light path button 69light-path power LED 69link LED 35local area network (LAN)activity LEDs, Ethernet 36connectors 35link LEDs 35locator LED 34, 35Mmajor components 6memoryconnectors 11installing 13modules 11problems 61requirements 11specifications 4type supported 11microprocessorair baffles 6, 10, 27coordination with DIMMs 11, 22dust cover, removing 22illustration 6installation sequence 21installing 20, 22LEDs 20problems 62requirements 11, 20microprocessor (continued)sockets 6, 20specifications 4monitor problems 63mouse problems 61Nnetwork operating system (NOS) installation 40non-hot-swap hard disk drive, installing 16nonmaskable interrupt (NMI) switch 35notes, important 3, 74noticeselectronic emission 77FCC, Class A 77notices and statements 3Oonline documentation 1operating-system installation 40operator information panelconnector 33, 34controls 33, 34LEDs 33, 34optional-device problems 65optionscompatible, IBM ServerProven list 8installing 7PPCI Express (PCIe) buses 24PCI Express x16 expansion slot 24PCI Express x8 expansion slot 24pointing-device problems 61portsEthernet 35serial 35USB 34, 35video 35POST error messages 46powercord connector 35LED 34light-path LED 69problems 66power supplyillustration 6LEDs 35specifications 4power-control button 33power-control-button shield 33problemsCD drive, DVD drive 57hard disk drive 59intermittent 59keyboard, USB 60memory 61microprocessor 62monitor 63Index 81