IEI Integration IMBA-XQ354 v1.10 - Manual (Page 66)

IMBA-XQ354 Motherboard
Page 46
Figure 4-12: PCIe x4 Connector Locations
SIDE A SIDE B
PIN NAME PIN NAME PIN NAME PIN NAME
A1 N/C A2 +12 V B1 +12 V B2 +12 V
A3 +12 V A4 GND B3 +12 V B4 GND
A5 N/C A6 N/C B5 SMCLK B6 SMDAT
A7 N/C A8 N/C B7 GND B8 +3.3 V
A9 +3.3 V A10 +3.3 V B9 N/C B10 3.3 V
A11 RESET A12 GND B11 WAKE# B12 N/C
A13 REFCLK+ A14 REFCLK- B13 GND B14 HSOp(0)
A15 GND A16 HSIp(0) B15 HSOn(0) B16 GND
A17 HSIn(0) A18 GND B17 N/C B18 GND
A19 N/C A20 GND B19 HSOp(1) B20 HSOn(1)
A21 HSIp(1) A22 HSIn(1) B21 GND B22 GND
A23 GND A24 GND B23 HSOp(2) B24 HSOn(2)
A25 HSIp(2) A26 HSIn(2 B25 GND B26 GND
A27 GND A28 GND B27 HSOp(3) B28 HSOn(3)