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Watch Dog Enable/Disable
JWD controls the Watch Dog func-
tion. Watch Dog is a system monitor
that can reboot the system when a
software application is "hung up". Pins
1-2 will cause WD to reset the system
if an application is hung up. Pins 2-3
will generate a non-maskable interrupt
signal for the application that is hung
up. See the table on the right for jump-
er settings. Watch Dog must also be
enabled in BIOS.
Note: When enabled, the user must
write their own application software in
order to disable the Watch Dog Timer.
Power LED/Speaker
On the JD1 header, pins 1-3 are for
a power LED and pins 4-7 are for the
speaker.
Note: The speaker connector pins are
for use with an external speaker. If
you wish to use the onboard speaker,
you should close pins 6-7 with a
jumper.
5-10 Onboard Indicators
LAN1/LAN2 LEDs
The Ethernet ports (located beside
the VGA port) have two LEDs. On
each Gb LAN port, one LED indicates
activity when blinking while the other
LED may be green, amber or off to
indicate the speed of the connection.
See the table on the right for the func-
tions associated with the connection
speed LED.
Chapter 5: Advanced Serverboard Setup
Watch Dog
Jumper Settings (JWD)
Jumper Setting
Pins 1-2
Pins 2-3
Open
Speaker Connector
Jumper Settings (JD1)
Pin Setting
Pins 6-7
Internal Speaker
Pins 4-7
External Speaker
LAN LED
(Connection Speed Indicator)
LED Color
Off
Green
Amber
5-19
Defi nition
Reset
NMI
Disabled
Defi nition
Defi nition
10 MHz
100 MHz
1 GHz
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