User`s manual

AIMB-744 User’s Manual 14
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 1.5: PCI-X 33/66MHz selection (J5&J6)
1.8.5 PCI-X slots 3.3V/5V selection (J8)
The AIMB-744 contains a PCI-X 3.3V/5V selection that allows the user
to select the operation voltage either 3.3V or 5V. The default setting is
3.3V which close pin1 and pin2. By closing pin2 and pin3, the operation
voltage change to 5V.
Table 1.6: PCI-X slots 3.3V/5V selection (J8)
Function Jumper Setting
*PCI 33MHz
PCI 66MHz
PCI-X 66MHz
Function Jumper Setting
*3.3V
5V
J5-J6
J6 Close
J5 Close
1-2 Closed
2-3 Closed