Supermicro SuperServer SYS-121H-TNR - Control Panel

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Chapter 1: Introduction
Control Panel
Control Panel Features
Feature Description
UID button/
BMC reset
The unit identication (UID) button turns on or o󰀨 the blue light function of the Information
LED.
This button can also be used to reset the BMC.
Information LED Alerts operator to several states, as noted in the table below.
NIC LED Indicates network activity on LANs when ashing.
HDD Indicates activity on the storage drives when ashing.
Power LED
Steady on – Power on
Blinking at 4Hz – Checking BIOS/BMC integrity
Blinking at 4Hz and "i" LED is blue – BIOS rmware updating
Two blinks at 4Hz, one pause 2hz and "i" LED blue – BMC rmware updating
Blinking at 1Hz and "i" LED red – Fault detected
Power button
The main power switch applies or removes primary power from the power supply to the server
but maintains standby power. Hold for four seconds to force a shut-down.
Information LED
Color, Status Description
Red, solid An overheat condition has occurred.
Red, blinking at 1Hz Fan failure, check for an inoperative fan.
Red, blinking at 0.25Hz
Power failure, check for a non-operational power
supply.
Red, solid, with Power LED blinking
green
Fault detected
Blue and red, blinking at 10 Hz Recovery mode
Blue, solid
UID has been activated locally to locate the
server in a rack environment.
Blue, blinking at 1Hz
UID has been activated using the BMC to locate
the server in a rack environment.
Blue, blinking at 2Hz BMC is resetting
Blue, blinking at 4Hz BMC is setting factory defaults
Blue, blinking at 10Hz with Power LED
blinking green
BMC/BIOS rmware is updating
Figure 1-2. Control Panel
PowerPower LED
Information LED
UID Button/
BMC Reset
HDD
NIC LED