User Guide • PC3-ALLEGRO • CompactPCI
®
PlusIO CPU Board • Intel® i7-3xxx Processor
Front Panel LEDs
The PC3-ALLEGRO is equipped with four LEDs which can be observed from the front panel. Three of
these LEDs are labelled according to their primary meaning, but should be interpreted altogether for
system diagnosis:
LED
Status
PG
Green/Red
GP
Green/Red
HD
Green/Red
OFF
GREEN
GREEN
Sleep State S5 (Soft Off)
OFF
GREEN
OFF
Sleep State S4 (Suspend to Disk/Hibernate)
OFF
OFF
GREEN
Sleep State S3 (Suspend to RAM/Standby)
GREEN
RED BLINK
X
After Reset
GREEN
X
X
Board Healthy and in S0 State
YELLOW BLINK
X
X
Front panel handle is unlocked
RED
X
X
Hardware Failure - Power Fault
RED BLINK
X
X
Software Failure
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