IMB-9452 MotherboardA14 REFCLK+ A35 HSIp(4) A56 HSIp(9) A77 HSIn(14)A15 REFCLK- A36 HSIn(4) A57 HSIn(9) A78 GNDA16 GND A37 GND A58 GND A79 GNDA17 HSIp(0) A38 GND A59 GND A80 HSIp(15)A18 HSIn(0) A39 HSIp(5) A60 HSIp(10) A81 HSIn(15)A19 GND A40 HSIn(5) A61 HSIn(10) A82 GNDA20 RSVD A41 GND A62 GNDA21 GND A42 GND A63 GNDTable 3-20: PCIe x16 Side A PinoutsPIN NAME PIN NAME PIN NAME PIN NAMEB1 +12v B22 GND B43 GND B64 GNDB2 +12v B23 HSOp(2) B44 GND B65 GNDB3 RSVD B24 HSOn(2) B45 HSOp(7) B66 HSOp(12)B4 GND B25 GND B46 HSOn(7) B67 HSOn(12)B5 SMCLK B26 GND B47 GND B68 GNDB6 SMDAT B27 HSOp(3) B48 PRSNT#2 B69 GNDB7 GND B28 HSOn(3) B49 GND B70 HSOp(13)B8 +3.3v B29 GND B50 HSOp(8) B71 HSOn(13)B9 JTAG1 B30 RSVD B51 HSOn(8) B72 GNDB10 3.3Vaux B31 PRSNT#2 B52 GND B73 GNDB11 WAKE# B32 GND B53 GND B74 HSOp(14)B12 RSVD B33 HSOp(4) B54 HSOp(9) B75 HSOn(14)B13 GND B34 HSOn(4) B55 HSOn(9) B76 GNDB14 HSOp(0) B35 GND B56 GND B77 GNDB15 HSOn(0) B36 GND B57 GND B78 HSOp(15)B16 GND B37 HSOp(5) B58 HSOp(10) B79 HSOn(15)B17 PRSNT#2 B38 HSOn(5) B59 HSOn(10) B80 GNDB18 GND B39 GND B60 GND B81 PRSNT#2B19 HSOp(1) B40 GND B61 GND B82 RSVD#2B20 HSOn(1) B41 HSOp(6) B62 HSOp(11)B21 GND B42 HSOn(6) B63 HSOn(11)Table 3-21: PCIe x16 Side B PinoutsPage 61
