Chapter 5 – DFI DT122-HR Manual User Manual
Page 32
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Chapter 5 Ports and Connectors
Chapter 5
Expansion Slots
PCI Express x16 Slot
Install PCI Express x16 graphics card, that comply to the PCI Express specifications, into the
PCI Express x16 slot. To install a graphics card into the x16 slot, align the graphics card above
the slot then press it down firmly until it is completely seated in the slot. The retaining clip of
the slot will automatically hold the graphics card in place.
PCI Express x1
Two PCIe x1 gold fingers for customized expansion (PCI or Mini PCIe) via a riser card.
PCI Express x16
PCI Express x1
PCI Express 2
PCIe 2
Pin
Pin Assignment
Pin
Pin Assignment
A1
GND
B1
+12V
A2
+12V
B2
+12V
A3
+12V
B3
+12V
A4
GND
B4
GND
A5
+5V
B5
SMB_CLK
A6
+5V
B6
SMB_DATA
A7
+5V
B7
GND
A8
+5V
B8
+3V3
A9
+3V3
B9
NC
A10
+3V3
B10
+3VDU
A11
RESET
B11
PCIE_WAKE
A12
GND
B12
PME
A13
CLK+
B13
GND
A14
CLK-
B14
TX+
A15
GND
B15
TX-
A16
RX+
B16
GND
A17
RX-
B17
PCIECLKRQ
A18
GND
B18
GND
PCI Express 3