Chapter 5: Advanced Serverboard Setup
5-21
Watch Dog Enable/Disable
JWD controls the Watch Dog function.
Watch Dog is a system monitor that
can reboot the system when a software
application hangs. Jumping pins 1-2
will cause WD to reset the system if an
application hangs. Jumping pins 2-3
will 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 en-
abled in BIOS.
Note:
When enabled, the user needs to
write their own application software in
order to disable the Watch Dog Timer.
Watch Dog
Jumper Settings (JWD)
Jumper Setting Defi nition
Pins 1-2
Reset
Pins 2-3
NMI
Open
Disabled
SCSI Enable/Disable (X7SB4 only)
Jumper JPA1 allows you to enable or
disable the SCSI controller. The default
setting is to close pins 1-2 to enable the
SCSI connection. See the table on the
right for jumper settings.
SCSI Termination Enable/Disable
(X7SB4 Only)
Jumper JPA2 allows you to enable or dis-
able the termination of the SCSI connec-
tor. The default setting is open to enable
(terminate) the SCSI channel. (For SCSI
to function properly, please do not change
the default setting.) See the table on the
right for jumper settings.
Default: Open: Do not change the
default setting!
SCSI Controller Enable/Disable
Jumper Settings (JPA1)
Pin# Defi nition
Pins 1-2
Enabled (*default)
Pins 2-3
Disabled
SCSI Termination Enable/Disable
Jumper Settings (JPA2)
Pin# Defi nition
Open
Enabled (*default)
Closed
Disabled
Force-Power-On Enable
Jumper JPF allows you to enable or
disable the Force-Power-On function. If
enabled, power will always stay on auto-
matically. If this function is disabled, the
user needs to press the power button to
power on the system.
Power Force On
Jumper Settings
Pin# Defi nition
Open
Normal
Closed Force
On
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