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Chapter 4: Motherboard Connections
Power Fail Override
JPO1 is the power-failure override jumper. Close pin 1 and pin 2 of this jumper to override
the power operations policy set by the manufacturer, and allow the remaining functional
power supply to run at full capacity instead of operating at normal “power-safe” state as
recommended by the manufacturer in the event of a power supply failure. Refer to the table
below for jumper settings. The default setting is Disabled.
Note
: Please use this jumper with caution. Enabling this jumper may cause the remain
-
ing power supply to run out unexpectedly and your motherboard to shut down.
Title
Pin Definitions
Jumper Setting
Definition
Pins 1-2
Override power
Pins 2-3
Disabled
4.5 LED Indicators
LAN1/2 LEDs
The Ethernet ports have two LEDs. On each port, one LED indicates activity when flashing
while the other LED may be green, amber or off to indicate the speed of the connection.
LAN1/2 LED
(Connection Speed
Indicator)
LED Color
Definition
Off
10 Mb/s
Green
100 Mb/s
Amber
1 Gb/s
BMC Heartbeat LED
A BMC Heartbeat LED is located at LEDBMC on the motherboard. When LEDBMC is blinking,
the BMC is functioning normally. Refer to the table below for more information.
BMC Heartbeat LED Indicator
LED Color
Definition
Green:
Blinking
BMC: Normal
