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LAN1/LAN2 Enable/Disable
Change the setting of jumper JPL1 to
enable or disable the LAN1 and LAN2
ports. See the table on the right for
jumper settings. The default setting
is enabled.
Red LED Overwrite Enable/Disable
When jumper J_UID_OW is open (the
default setting), the red LED for Over-
heat/Fan Fail/PWR Fail/UID LED (see
pin 8 of JF1) will overwrite the signal
from the blue UID LED (see pin 7 of
JF1). That is, when the red LED is on,
the blue LED will be turned off (when
the red LED is off, the blue LED can be
on or off). When this jumper is closed,
the red and blue LEDs work indepen-
dently of each other. See the table on
the right for jumper settings.
Watch Dog Enable/Disable
JWD1 enables the Watch Dog func-
tion, a system monitor that takes action
when a software application freezes
the system. Jumping pins 1-2 will
have Watch Dog reboot the system if a
program freezes. Jumping pins 2-3 will
generate a non-maskable interrupt for
the program that has frozen. See the
table on the right for jumper settings.
Watch Dog must also be enabled in
BIOS.
Chapter 5: Advanced Serverboard Setup
LAN1/2 Enable/Disable
Jumper Settings (JPL1)
Jumper Setting
Pins 1-2
Pins 2-3
Red LED Overwrite Enable/Disable
Jumper Settings (J_UID_OW)
Jumper
Defi nition
Open
Red OH/Fan Fail/PWR Fail LED
(pin 8 of JF1) takes precedence
over the Blue UID_LED (pin 7
of JF1).
Red LED: On, Blue LED: Off,
Red LED: Off, Blue LED: On or Off
Closed
Red nad Blue LEDs function
independently.
Red LED: On, Blue LED: On,Off
Red LED: Off, Blue LED: On, Off
Jumper Settings (JWD1)
Jumper Setting
Pins 1-2
Pins 2-3
Open
Note: when Watch Dog is enabled, the user must
write their own application software to disable the
Watch Dog Timer.
5-19
Defi nition
Enabled
Disabled
Watch Dog
Defi nition
Reset
NMI
Disabled
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