HP FM064UT#ABA Maintenance And Service Manual page 211

Table 6-9 LED color definitions (continued)
LED state
Flashing
Solid or flashing
None
ENWW
LED color System status
Blue System is in Standby.
Red System has experienced an error. (See
messages on page
No light System is in Hibernate, or is off.
POST error
200.)
Diagnostic codes and errors 199