IBM 1269-3S2, Installation, Service And User Manual

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3.2 Power On .................................................................................................................................. 29
3.2.1 PSU/Cooling Module LEDs .............................................................................................. 30
3.2.2 Ops Panel Switches ......................................................................................................... 30
3.2.3 Ops Panel LEDs .............................................................................................................. 31
3.3 Disk Drive LEDs ........................................................................................................................ 32
3.4 Power Down .............................................................................................................................. 32
4 Troubleshooting and Problem Solving ....................................................................................... 33
4.1 Overview ................................................................................................................................... 33
4.1.1 Initial Start-up Problems ................................................................................................... 33
4.2 Audible Alarm ............................................................................................................................ 34
4.2.1 Audible Alarm Mute .......................................................................................................... 34
4.3 LEDs ......................................................................................................................................... 35
4.3.1 PSU/Cooling Module ........................................................................................................ 35
4.3.2 Ops Panel ........................................................................................................................ 36
4.3.3 EBOD Module .................................................................................................................. 37
4.4 Troubleshooting ........................................................................................................................ 37
4.4.1 System Faults .................................................................................................................. 37
4.4.2 Power Supply/Cooling Faults ........................................................................................... 38
4.4.3 Thermal Control ............................................................................................................... 38
4.4.4 Thermal Alarm ................................................................................................................. 39
4.4.5 Thermal Shutdown ........................................................................................................... 40
4.5 Drive Carrier Module Faults ...................................................................................................... 41
4.5.1 Dummy Carrier Modules .................................................................................................. 41
4.6 Dealing with Hardware Faults ................................................................................................... 41
4.6.1 Ops Panel ........................................................................................................................ 41
4.7 Continuous Operation During Replacement ............................................................................. 42
4.8 Replacing a Module .................................................................................................................. 42
4.8.1 PSU/Cooling Modules ...................................................................................................... 42
4.8.2 EBOD Module .................................................................................................................. 44
4.8.3 Drive Carrier Module ........................................................................................................ 46
4.9 Spare Parts and Ancillary Items ............................................................................................... 46