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Chapter 4: Motherboard Connections
Watch Dog
JWD1 controls the Watch Dog function. Watch Dog is a monitor that can reboot the system
when a software application hangs. Jumping pins 1-2 will cause the Watch Dog to reset the
system if an application hangs. Jumping pins 2-3 will generate a non-maskable interrupt signal
for the application that hangs. The Watch Dog monitor must also be enabled in the BIOS.
The default setting is Reset.
Note:
When the Watch Dog is enabled, the user must write their own application software
to disable it.
Watch Dog
Jumper Settings
Jumper Setting
Definition
Pins 1-2
Reset
Pins 2-3
NMI
Open
Disabled
Manufacturing Mode Select
Close pins 2-3 of the JPME2 jumper to bypass the SPI flash security mechanism and force
the system into Manufacturing Mode. This mode will allow you to flash the system firmware
from a host server to modify system settings.
Manufacturing Mode Select
Jumper Settings
Jumper Setting
Definition
Pins 1-2
Normal (Default)
Pins 2-3
Manufacturing Mode
Onboard PCH sSATA or Add-On Card SAS IO Selection
J25 allows the user to select IO settings for the Onboard PCH sSATA or Add-On Card SAS.
The default setting is Onboard PCH sSATA.
SATA/SAS Select Jumper
Settings
Jumper
Setting
Definition
Pin 1-2
Onboard sSATA
Pin 2-3
AOC SAS
