J12: digital i/o connector (4 in, 4 out), Pcie_1: x16 pci express slot, Pcie_2, pcie_3: x1 pci express slots – Intel MB898F User Manual
Page 27: Pci1, pci2, pci3, pci4: pci slots, J9: cf socket

INSTALLATIONS
J12: Digital I/O Connector (4 in, 4 out)
This 10-pin digital I/O connector supports TTL levels and is used to
control external devices requiring ON/OFF circuitry.
Signal Name
Pin #
Pin #
Signal Name
Ground 1 2 +5V
Out3 3
4 Out1
Out2 5
6 Out0
IN3 7
8 IN1
IN2 9
10 IN0
PCIE_1: x16 PCI Express Slot
PCIE_2, PCIE_3: x1 PCI Express Slots
PCI1, PCI2, PCI3, PCI4: PCI Slots
J9: CF Socket
MB898 User’s Manual
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