Interpreting LEDs
28 SPARC T5-4 Server Service Manual • July 2016
Interpreting LEDs
Use these steps to determine if an LED indicates that a component has failed in the server.
Steps Description Links
1. Check the LEDs on the front and rear of the server. ■ “Front Panel Controls and
LEDs” on page 29
■ “Rear Panel Controls and
LEDs” on page 31
2. Check the LEDs on the individual components.
Note - Component LEDs might not be lit
even though the component is faulty. Use the
instructions in these links to determine if the
component has been diagnosed as being faulty.
■ “Determine if the Main Module Is
Faulty” on page 99
■ “Determine Which Processor Module Is
Faulty” on page 61
■ “Determine Which DIMM Is Faulty (DIMM
Fault Remind Button)” on page 75
■ “Determine Which Hard Drive Is
Faulty” on page 90
■ “Determine Which Power Supply Is
Faulty” on page 138
■ “Determine Which Fan Module Is
Faulty” on page 146
■ “Determine Which PCIe Card Is
Faulty” on page 157
■ “Determine if the Rear I/O Module Is
Faulty” on page 175
Related Information
■
“Understanding Diagnostics” on page 23
■
“Managing Faults” on page 37
To Next Page
Need help?
General