
I2C to PCI-Express  Slot
JI2C1/JI2C2 allows you to enable the I2C bus to communicate with the 
Watch Dog Enable/Disable
JWD1 enables the Watch Dog function, a system monitor that takes action when a software application freezes the system. Jumping pins 
LAN1/2 Enable/Disable
Change the setting of jumper JPL1 to enable to enable or disable the LAN1 and LAN2 Ethernets ports. See the table on the right for jumper settings. The default setting is enabled.
SAS Enable/Disable
JPS1 allows you to enable or disable the SAS controller. The default position is on pins 1 and 2 to enable SAS. See the table on the right for jumper settings.
I2C to 
Jumper Settings
(JI2C1/JI2C2)
Jumper Setting Definition
| Closed | Enabled | 
| 
 | 
 | 
| Open | Disabled | 
| 
 | 
 | 
Watch Dog
Jumper Settings (JWD1)
Jumper Setting Definition
| Pins  | Reset | 
| 
 | 
 | 
| Pins  | NMI | 
| 
 | 
 | 
| Open | Disabled | 
| 
 | 
 | 
Note: When Watch Dog is enabled, the user must write their own application software to disable the Watch Dog Timer.
LAN1/2 En/Disable
Jumper Settings (JPL1)
Jumper Setting Definition
| Pins  | Enabled | 
| 
 | 
 | 
| Pins  | Disabled | 
| 
 | 
 | 
SAS Enable/Disable
Jumper Settings (JPS1)
Jumper Setting Definition
| Pins  | Enabled | 
| 
 | 
 | 
| Pins  | Disabled | 
| 
 | 
 | 
