Rear View - Supermicro SuperServer SYS-421GU-TNXR User Manual

Color, Status
Red, blinking at 10Hz
Blue, solid
Blue, blinking at 1Hz
Blue, blinking at 2Hz, and BMC Heartbeat
LED on the motherboard is green
Blue, blinking at 4Hz
Blue, blinking at 10Hz
Red, blinking at 10Hz and the rear UID LED
is blue, blinking at 10Hz

Rear View

1
2
Power Supply
I/O Panel
Feature Description
PCIe 5.0 x16 expansion card slots; details in
1 8
to
Four redundant power supply modules with system fans, PWS1 on the left, PWS4 on the
Power Supplies
right
Two network LAN ports
One dedicated BMC LAN port
Two USB 3.0 ports
I/O Panel
One video port
One COM port
UID button/BMC reset button (see
Information LED
Description
CPLD recovery mode error
Unit ID has been activated by switch
Unit ID has been activated using the BMC
BMC is resetting
BMC is setting factory defaults
BIOS/BMC is recovering or updating
CPLD recovery or update is in progress
3
4
Power Supply
Figure 1-3. System: Rear View
System Features: Rear
Section 3.9
Control Panel
12
Chapter 1: Introduction
5
6
Power Supply
CPU1
Features)
7
8
Power Supply
CPU2