Contents
Using this guide.................................................................................... 10
Getting started............................................................................................................................ 10
Supported servers............................................................................................................ 11
Additional troubleshooting resources............................................................................... 11
Troubleshooting preparation............................................................... 12
Prerequisites for server troubleshooting..................................................................................... 12
Important safety information ...................................................................................................... 12
Symbols on equipment.....................................................................................................12
Warnings and cautions.....................................................................................................13
Electrostatic discharge..................................................................................................... 15
Preventing electrostatic discharge........................................................................ 15
Grounding methods to prevent electrostatic discharge......................................... 15
Collecting symptom information..................................................................................................15
Preparing the server for diagnosis.............................................................................................. 17
Processor troubleshooting guidelines......................................................................................... 18
Breaking the server down to the minimum hardware configuration............................................ 18
Common issue resolution.................................................................... 20
Resolving loose connections...................................................................................................... 20
Searching for service notifications.............................................................................................. 20
Firmware updates....................................................................................................................... 20
Server updates with an HPE Trusted Platform Module and BitLocker enabled............... 21
DIMM handling guidelines...........................................................................................................21
DIMM and NVDIMM population information............................................................................... 22
Component LED definitions........................................................................................................ 22
SAS, SATA, and SSD drive guidelines.............................................................................22
Hot-plug drive LED definitions..........................................................................................22
Low profile LFF drive LED definitions.............................................................................. 23
NVMe SSD LEDs............................................................................................................. 24
System power LED definitions......................................................................................... 25
Health status LED bar definitions (c-Class server blades only)....................................... 26
Front panel LED and buttons........................................................................................... 26
Front panel LED notations.....................................................................................27
Using the Server Health Summary........................................................................28
Front panel LED power fault codes..................................................................................30
Remote troubleshooting.......................................................................31
Remote troubleshooting tools..................................................................................................... 31
Remote access to the Virtual Connect Manager.........................................................................32
Using iLO for remote troubleshooting of servers and server blades...........................................32
Using Onboard Administrator for remote troubleshooting of server blades................................ 33
Using the OA CLI............................................................................................................. 34
Diagnostic flowcharts...........................................................................36
Contents 3