Appendix - Sun Microsystems Fire V890 Service Manual

During system startup, the front panel LEDs are individually toggled on and off to
verify that each one is working correctly. After that, the front panel LEDs operate as
described in the following table.
Name Icon
Power/OK
System Fault
OK-to-
Remove
Disk Fault
Power Fault
Thermal Fault
Attention
Left Side
Attention
Right Side
LED Function
This green LED lights when the system power is on.
This amber LED lights to indicate a serious system fault.
When this LED is lit, one or more icons in the display panel
may also light to indicate the specific nature and location of
the fault.
This amber LED lights to indicate that an internal
hot-pluggable component is ready for removal.
This amber LED lights to indicate a serious disk subsystem
fault that is likely to bring down the system. When this
LED is lit, one or more disk LEDs may also be lit at the
front of the disk cage, indicating the source of the fault. See
"About Disk Drive LEDs" on page
This amber LED lights to indicate a serious power
subsystem fault that is likely to bring down the system.
When this LED is lit, one or more power supply LEDs may
also be lit on the system rear panel. See
Supply LEDs" on page 265.
This amber LED lights to indicate a serious thermal fault
(fan fault or overtemperature condition) that is likely to
bring down the system. There are two Thermal Fault LEDs
in the display to indicate whether the fault is located on the
left or right side of the system. In the event of a fan fault, a
fault LED inside the system will indicate the faulty fan
assembly. See "About Fan Tray LEDs" on page
This amber LED lights to indicate that an internal
component on the left side of the system requires servicing.
This amber LED lights to indicate that an internal
component on the right side of the system requires
servicing.
267.
"About Power
266.
Appendix B System LEDs 261