AIMB-742 User’s Manual 12
problem. The J2 jumper settings control the outcome of what the com-
puter will do in the event the watchdog timer is tripped.
1.8.4 Riser card selection (J3 & J4)
The AIMB-742 contains a riser card selection that enables the riser card
function. While using 2U riser card, you should close pin 1 and pin 2 of
J3 and J4 to activate the PCI slots on the riser card.
Table 1.4: Watchdog timer output (J2)
Function
Jumper Setting
IRQ11
* Reset
* default setting
Note: The interrupt output of the watchdog timer is a
low level signal. It will be held low until the
watchdog timer is reset.
Table 1.5: Riser card selection (J3 & J4)
Function Jumper Setting
Enable Riser Card
1
1-2 closed
1
2-3 closed
1 1-2 closed
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