Supermicro SuperServer SYS-122H-TN User Manual page 17

Item
8–11
*See cable routing diagram information under
configurations and part numbers.
Control Panel
Power switches and status LEDs are located on the control panel on the front of the SYS-122H-
TN server.
Feature
UID The Unit Identification (UID) switch turns on or off the blue light function of the
switch/BMC Information LED.
reset This switch can also be used to reset the BMC.
Information
Alerts operator to several states, as noted in the table below.
LED
NIC LED Indicates network activity on LANs when flashing.
HDD Indicates activity on the storage drives when flashing.
Steady on: Power on
Blinking at 4 Hz: Checking BIOS/BMC integrity
Power LED Blinking at 4 Hz and "i" LED is blue: BIOS firmware updating
Two blinks at 4 Hz, one pause 2 Hz and "i" LED blue: BMC firmware updating
Blinking at 1 Hz and "i" LED red: Fault detected
The main power button applies or removes primary power from the power supply
Power button to the server but maintains standby power. Hold for four seconds to force a shut-
down.
Logical Storage Drive Numbers
Optional four hot-swap 2.5" NVMe/SATA/SAS drive
bays (NVMe from CPU2)
"Maintenance and Component Installation" on page 44
Figure 1-2. Control Panel
Control Panel Features
Description
17
SuperServer SYS-122H-TN: Introduction
Description
for optional