KTGM45 Users Guide
KTD-N0793-L
Page 33
3.6
PCI-Express connectors
The KTGM45/mITX supports one (x16) (16-lane) PCI Express port and one miniPCI Express port.
KTGM45/Flex and KTGM45/ATXE supports one PCIe x16 port and one PCIe x1 port (in a x16 connector).
The 16-lane (x16) PCI Express
(PCIe 2.0) port can be used for external PCI Express graphics card. It is
located nearest the CPU. Maximum theoretical bandwidth using 16 lanes is 16 GB/s.
The PCI Express (x16) interface is multiplexed with the SDVO ports and TMDS ports.
The miniPCIe
(PCIe 1.1) (KTGM45/mITX only) is located on the backside of the board.
Supports PCI Express GEN1 frequency of 1.25 GHz (supports 2.5 Gbit/s in each direction, 500 MB/s totally).
The 1-lane (x1) PCI Express
(PCIe 1.1) port (KTGM45/Flex and KTGM45/ATXE only) is mechanically a x16
port and electrically a x1 port. It is located farthest away from CPU. Supports PCI Express GEN1 frequency
of 1.25 GHz (supports 2.5 Gbit/s in each direction, 500 MB/s totally).
3.6.1 PCI-Express x16/SDVO Connector (PCIe x16/SDVO)
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[15]/SDVOB_RED
B14
A14
PCIE_x16 CLK#
PEG_TXN[15]/SDVOB_RED#
B15
A15
GND
GND
B16
A16
PEG_RXP[15]/SDVO_TVCLKIN
SDVO_CTRLCLK
B17
A17
PEG_RXN[15] / SDVO_TVCLKIN#
GND
B18
A18
GND
PEG_TXP[14]/SDVOB_GREEN
B19
A19
NC
PEG_TXN[14]/SDVOB_GREEN#
B20
A20
GND
GND
B21
A21
PEG_RXP[14]/SDVOB_INT
GND
B22
A22
PEG_RXN[14]/SDVOB_INT#
PEG_TXP[13]/SDVOB_BLUE
B23
A23
GND
PEG_TXN[13]/SDVOB_BLUE#
B24
A24
GND
GND
B25
A25
PEG_RXP[13]/SDVO_FLDSTALL
GND
B26
A26
PEG_RXN[13]/SDVO_FLDSTALL#
PEG_TXP[12]/SDVOB_CLKP
B27
A27
GND
PEG_TXN[12]/SDVOB_CLKN
B28
A28
GND
GND
B29
A29
PEG_RXP[12]
NC
B30
A30
PEG_RXN[12]
SDVO_CTRLDATA
B31
A31
GND
GND
B32
A32
NC
PEG_TXP[11]/SDVOC_RED
B33
A33
NC
PEG_TXN[11]/SDVOC_RED#
B34
A34
GND
GND
B35
A35
PEG_RXP[11]
Connector
