Led Indicators - Supermicro SuperServer SYS-511R-ML User Manual

Watchdog Timer
Watchdog (JWD1) is a system monitor that can reboot the system when a software application
hangs. Close pins 1-2 to reset the system if an application hangs. Close pins 2-3 to generate
a non-maskable interrupt (NMI) signal for the application that hangs. The Watchdog must
also be enabled in the BIOS.

4.5 LED Indicators

LAN LEDs
The Ethernet ports each have two LEDs. One LED indicates activity when flashing green.
The other may be green, amber or off to indicate the speed of the connection.
BMC LAN LEDs
A dedicated BMC LAN connection is provided on the rear I/O panel. The Link LED indicates
the speed of the connection. The other LED indicates activity.
Color
Off
Green
Amber
BMC Heartbeat LED
LEDM1 is the BMC Heartbeat LED. When the LED is blinking green, BMC is working.
M.2 Activity LED
LED3 is the M.2-P2 activity LED while LED7001 is the M.2-P1 activity LED on the motherboard.
When these LEDs are blinking, the M.2 slots are active.
Watchdog
Jumper Settings
Jumper Setting
Pins 1–2
Pins 2–3
Open
LAN LED
(Connection Speed
Indicator)
LED Color
Off
Green
Amber
BMC Link LED
Definition
No Connection
100 Mb/s
1 Gb/s
50
Chapter 4: Motherboard Connections
Definition
Reset (Default)
NMI
Disabled
Definition
10 Mb/s
100 Mb/s
1 Gb/s
LAN 1/LAN 2
Link LED
(speed)
IPMI LAN
(X8ST3-F)
Activity LED