Chapter 5: Advanced Serverboard Setup
5-29
5-10 Onboard Indicators
Onboard Power LED
An Onboard Power LED is located at
LE1 on the serverboard. When this
LED is lit, the system is on. Be sure
to turn off the system and unplug the
power cord before removing or installing
components. See the tables at right for
more information.
Watch Dog Enable/Disable
Watch Dog (JWD1) is a system moni-
tor that will reboot the system when a
software application hangs. Close pins
1-2 to reset the system if an applica-
tion hangs. Close pins 2-3 to generate
a non-maskable interrupt signal for the
application that hangs. See the table on
the right for jumper settings. Watch Dog
must also be enabled in the BIOS.
Watch Dog
Jumper Settings
Jumper Setting De
fi
nition
Pins 1-2
Reset (default)
Pins 2-3
NMI
Open
Disabled
Onboard Power LED Indicator
(LE1)
LED Color De
fi
nition
Off
System Off (PWR cable
not connected)
Green
System On
Green:
Flashing
Quickly
ACPI S1 State
Green:
Flashing
Slowly
ACPI S3 (STR) State
BMC Heartbeat LED (DM1)
Status
Color/State De
fi
nition
Green: Blinking
BMC:Normal
BMC Heartbeat LED
A BMC Heartbeat LED is located at
DM1 on the serverboard. When DM1
is blinking, the BMC is functioning
normally. See the table at right for more
information.
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