Supermicro SUPERSERVER 2028TP-DTFR, User Manual, Page: 28 / 140

SUPERSERVER 2028TP-DTR/DTTR/DTFR USER'S MANUAL
3-2
3-2 Control Panel Button
Information LED
This LED will be solid blue when the UID function has been activated. When this
LED flashes red, it indicates a fan failure. When red continuously it indicates an
overheat condition, which may be caused by cables obstructing the airflow in
the system or the ambient room temperature being too warm. Check the routing
Power
The main power button on each of the two control panels is used to apply or remove
power from the power supply to each of the two nodes in the chassis. Turning power
to the system off with this button removes the main power, but keeps standby power
supplied to the system. Therefore, you must unplug the AC power cord from any
external power source before servicing. The power button has a built-in LED which
will turn green when the power is on.
UID
When used with a UID compatible motherboard, the UID button is used to turn on
or off the blue light function of the LED. This is built into the front side of the UID
button and at the rear end of each motherboard node, for those motherboards which
support it. Once the blue light is activated, the unit can be easily located in very
large racks and server banks.
3-3 Control Panel LEDs
Two control panels are provided on the front handles of the chassis.
Each control panel has two LEDs. These LEDs provide you with critical information
related to different parts of the system. This section explains what each LED
indicates when illuminated and any corrective action you may need to take.