Interpreting LEDs
30 SPARC T5-4 Server Service Manual • July 2016
No. LED Icon or Label Description
■ Fast blink – Server is running in standby mode and can be
quickly returned to full function.
■ Slow blink – A normal but transitory activity is taking place.
Slow blinking might indicate that server diagnostics are
running or that the server is booting.
4 Power button The recessed Power button toggles the server on or off.
See “Power Off the Server (Power Button – Graceful
Shutdown)” on page 52.
5 System Overtemp
LED(amber)
Indicates these conditions:
■ Off – Indicates a steady state, no service action is required.
■ Steady on – Indicates that a temperature failure event has
been acknowledged and a service action is required.
6 Fan Module Fault
LED(amber)
Rear FM Indicates these conditions:
■ Off – Indicates a steady state, no service action is required.
■ Steady on – Indicates that a fan module failure event has been
acknowledged and a service action is required on at least one
of the fan modules.
7 PCIe Card Fault
LED(amber)
Rear PCIe Indicates these conditions:
■ Off – Indicates a steady state, no service action is required.
■ Steady on – Indicates that a failure event has been
acknowledged and a service action is required on at least one
of the PCIe cards.
Related Information
■
“Rear Panel Controls and LEDs” on page 31
■
“Understanding Diagnostics” on page 23
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