Kontron KTH81-mITX - Manual (Page 56)

KTD-N0882-H Page 56 Slot Connectors
KTQ87/KTH81 Users Guide
8 Slot Connectors (PCIe, mPCIe, mSATA, PCI)
8.1 PCIe Connectors
The mITX boards supports one PCIex16 (16-lanes), one miniPCIe and one mSATA in mPCIe slot.
The Flex boards supports one PCIex16 (16-lanes), one PCIex2 (2-lanes) in a x16 slot and one PCIex1 slot.
The
PCIex16 port can be used for external PCI Express cards inclusive graphics card. (On the Flex boards it
is located nearest the CPU). Maximum theoretical bandwidth depends on the chipset, Q87 / H81 support up
to PCIe 3.0 / PCIe 2.0, so Q87 support 8 Gbps effectively for each lane and direction, 256 Gbps in total for
16 lanes, while the H81 support 4 Gbps effectively for each lane and direction, 128 Gbps in total for 16
lanes.
The
PCIex2 (in a x16 slot) (only on Flex board) can be used for external PCI Express cards inclusive graphics
card. It is located fares away from CPU. Maximum theoretical bandwidth is 4 Gbps effectively for each lane
and direction, 16 Gbps in total for 2 lanes.
The
PCIex1 (only on Flex board) can be used for external PCI Express cards inclusive graphics card.
Maximum theoretical bandwidth is 4 Gbps effectively for each direction, 8 Gbps in total.
One
miniPCIe (PCIe 2.0) port (mITX boards only) supporting mPCIe cards.
One
miniPCIe (mSATA) port (mITX boards only) supporting mSATA cards.
miniPCIe slots are equipped with one USB 2.0 port. The USB connected to the mSATA slot do not support
WAKE function.
PCI-Express x16 Connector (PCIex16) (SLOT1_16X)
Note Type Signal PIN Signal Type Note
+12V B1 A1 NC
+12V B2 A2 +12V
+12V B3 A3 +12V
GND B4 A4 GND
SMB_CLK B5 A5 NC
SMB_DATA B6 A6 NC
GND B7 A7 NC
+3V3 B8 A8 NC
NC B9 A9 +3V3
SB3V3 B10 A10 +3V3
WAKE# B11 A11 RST#
NC B12 A12 GND
GND B13 A13 PCIE_x16 CLK
PEG_TXP[0] B14 A14 PCIE_x16 CLK#
PEG_TXN[0] B15 A15 GND
GND B16 A16 PEG_RXP[0]
CLKREQ B17 A17 PEG_RXN[0]
GND B18 A18 GND
PEG_TXP[1] B19 A19 NC
PEG_TXN[1] B20 A20 GND
GND B21 A21 PEG_RXP[1]
GND B22 A22 PEG_RXN[1]