System Expander Board Leds - Sun Microsystems Sun Fire E25K Service Manual

12.1

System Expander Board LEDs

System expander board components and LEDs are listed in
TABLE 12-2
TABLE 12-1
Total Number of System Expander
TABLE 12-2
LEDs After Insertion
or Initial System Power On
Active Service Remove Active Service Remove Active Service Remove Active Service Remove
off
Failure of the service LED to transition from ON to OFF within 60 seconds after
insertion indicates a power-status control fault.
FIGURE 12-1
Any slot 0 or slot 1 board present in the expander being replaced must be
deconfigured, powered off, and removed prior to removing or replacing the
expander. If the expander is configured as a split slot, up to two domains can be
affected.
12-2 Sun Fire E25K/E20K Systems Service Manual • April 2004
.
Expander Board Components
Boards Per System
(front-rear)
1-18
Expander Board Valid LED Status
LEDs After Presence
is Detected
on on off
illustrates the expander board and the LED locations.
Total Number of System
Expander Boards Per Side
0-9
Component Powered On
off on on off
and
TABLE 12-1
Number of LEDs Per System
Expander Board
3
Component Powered Off
off off off on