IEI Integration IMBA-9454 v4.02 - Manual (Page 70)

IMBA-9454G Motherboard
Page 52
PIN NAME PIN NAME PIN NAME PIN NAME
B1 +12v B22 GND B43 GND B64 GND
B2 +12v B23 HSOp(2) B44 GND B65 GND
B3 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 GND
B6 SMDAT B27 HSOp(3) B48 PRSNT#2 B69 GND
B7 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 GND
B10 3.3Vaux B31 PRSNT#2 B52 GND B73 GND
B11 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 GND
B14 HSOp(0) B35 GND B56 GND B77 GND
B15 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 GND
B18 GND B39 GND B60 GND B81 PRSNT#2
B19 HSOp(1) B40 GND B61 GND B82 RSVD#2
B20 HSOn(1) B41 HSOp(6) B62 HSOp(11)
B21 GND B42 HSOn(6) B63 HSOn(11)
Table 4-17: PCIe x16 Side B Pinouts
4.2.15 PCI Express Power Connector (4-pin)
CN Label: PCN1
CN Type: 4-pin wafer (1x4)
CN Location: See Figure 4-16
CN Pinouts: See Table 4-18
The PCI Express power connector provides 12V power to PCIe expansion cards.