Table 1.4: watchdog timer output (j2), 4 pci-x 33/66mhz selection (j5 & j6), Table 1.5: pci-x 33/66mhz selection (j5&j6) – Intel Socket 478 AIMB-744 User Manual

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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 PCI-X 33/66Mhz selection (J5 & J6)

The AIMB-744 contains a PCI-X 33/66Mhz selection that enables the
PCI-X slots different modes. The default mode is PCI 33MHz which
close both J5 and J6. While close J6 only the slots work in PCI 66MHz
mode. To enable PCI-X 66MHz mode, please close J5 only.

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: PCI-X 33/66MHz selection (J5&J6)

Function

Jumper Setting

*PCI 33MHz

PCI 66MHz

PCI-X 66MHz

1-2 closed

2-3 closed

J5-J6

J6 Close

J5 Close