B
A
A. BMC LED
B. UID LED
BMC Heartbeat LED
A BMC Heartbeat LED is located at DS1
on the motherboard. When DS1 is blink-
ing, BMC functions normally. See the
table at right for more information.
BMC Heartbeat LED
Status
Color/State Denition
Green:
Blinking
BMC: Normal
Unit Identication Switch/LED
A Unit Identier switch (SWUID) and a
rear UID LED indicator (LEDUID1) are
located next to the VGA port on the back
of the chassis. When the user pushes the
rear UID switch, the front UID LED indica-
tor and the rear UID LED (LEDUID1) will
be turned on. Push the UID switch again
to turn off both UID LED indicators. The
UID switch provides easy identication
of a system unit that may be in need of
service. See the tables on the right for
more information.
UID LED (LEDUID1)
Status
Color/State OS Status
Blue: On Windows OS Unit Identied
Blue:
Blinking
Linux OS Unit Identied