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LED information
LED information
The various subsystems in this server include LEDs that can assist you in troubleshooting
your system. See the following table for a description of these LEDs and the information
they provide:
LED Name Function Location Color Description
Power LED Identify the
power state of
the system
Front panel Green
■
Off = Power is off (or S4/S5
with ACPI)
■
On = Power is on (or S0 with
ACPI)
■
Blinking = S1 Low power
state with ACPI
ID Aid in server
identification
from the back
panel
Front panel and
left back of
system board
Blue On = Server identification
enabled
System
Status/Fault
Visible fault
warning
Front panel Green or
Orange
■
On = No fault
■
Green blink = Degraded
■
Orange blink = Non-critical
■
Orange = Critical or
non-recoverable error
Drive status
(general)
Hard drive
activity and fault
status
Front panel Green or
Orange
■
Green on = Drive initializing
■
Green blink = Drive active
■
Orange on = Drive or slot
failure
■
Orange slow blink =Drive or
slot fault predicted or rebuild
in progress
■
Orange fast blink = Drive
rebuild interrupted or
rebuild on empty slot
Drive status
(individual drives)
Drive activity and
fault status
Individual drive
carriers
Green or
Orange
■
Green blink - Drive active
■
Green and orange
alternating - Drive is on and
is rebuilding RAID, or is on
and in fault condition
■
Orange blink - Drive is off or
in fault condition
■
Unlit - Drive is inactive or no
drive installed in carrier
Memory board
LEDs (8)
Identify condition
of memory board
and DIMMs
On top of each
memory board
Green or
Orange
For location and description,
see “Memory” on page 85.
8510702.book Page 201 Thursday, July 7, 2005 11:21 AM