IBM 7985 Problem Determination And Service Manual

Eelectrical input 6electronic emission Class A notice 191environment 6error codes and messagesdiagnostic 56POST/BIOS 30system error 68error logs 28clearing 29POST 28system error 29viewing 29error messages 69error symptomsgeneral 38hard disk drive 38intermittent 39keyboard, USB 40memory 41microprocessor 42monitor 43mouse, USB 40optional devices 45pointing device, USB 40power 46serial port 47ServerGuide 48software 48USB port 49errorsformat, diagnostic code 56messages, diagnostic 55power supply LEDs 54Ethernetcontrollertroubleshooting 88Ethernet activity LED 9Ethernet connector 9Ethernet-link status link LED 9external SAS connectorinstalling 116removing 115FFCC Class A notice 191features 6field replaceable units (FRUs) 93firmware code, updating 182firmware, updating 167Fixed Disk Test 55FRUs, replacingoperator information panel assembly 144SAS backplane 146system board 163Hhard disk drivediagnostic tests, types of 55installing 123problems 38hardware problems 1heat output 6hot-swap and hot-plug devicespower supplies 139hot-swap power supply, installing 139humidity 6Iimportant notices 4information LED 8installingadapter 114battery 142CD-RW/DVD drive 126cover 110DIMMs 132external SAS connector 115, 116hard disk drive 123memory modules 132microprocessor 158operator-information panel 145RAID controller 121SAS backplane 147system board 164intermittent problems 39Jjumpers 15LLEDs 9Ethernet activity 9Ethernet-link status 9front 7rear view 9system board 17light path diagnosticsabout 49LEDs 52panel 50location LED 8, 10Mmemoryremoving 132memory modulespecifications 6memory problems 41messagesdiagnostic 55service processor 69196 IBM System x3655 Type 7985 and 7943: Problem Determination and Service Guide