PCI Express
x1, x4, x8, and x16 PCI Express Connector
Pin A
Pin | Signal | Pin | Signal | Pin | Signal | Pin | Signal | Pin | Signal |
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1 | PRSNT1 | 6 | JTAG3 | 11 | PERST# | 16 | PERp0 | 21 | PERp1 |
2 | +12V | 7 | JTAG4 | 12 | GND | 17 | PERn0 | 22 | PERn1 |
3 | +12V | 8 | JTAG5 | 13 | REFCLK+ | 18 | GND | 23 | GND |
4 | GND | 9 | +3.3V | 14 | REFCLK- | 19 | RSVD | 24 | GND |
5 | JTAG2 | 10 | +3.3V | 15 | GND | 20 | GND | 25 | PERp2 |
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26 | PERn(2) | 31 | GND | 36 | PERn4 | 41 | GND | 46 | GND |
27 | GND | 32 | RSVD | 37 | GND | 42 | GND | 47 | PERp7 |
28 | GND | 33 | RSVD | 38 | GND | 43 | PERp6 | 48 | PERn7 |
29 | PERp3 | 34 | GND | 39 | PERp5 | 44 | PERn6 | 49 | GND |
30 | PERn3 | 35 | PERp4 | 40 | PERn5 | 45 | GND | 50 | RSVD |
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51 | GND | 56 | PERp9 | 61 | PERn10 | 66 | GND | 71 | GND |
52 | PERp8 | 57 | PERn9 | 62 | GND | 67 | GND | 72 | PERp13 |
53 | PERN8 | 58 | GND | 63 | GND | 68 | PERp12 | 73 | PERn13 |
54 | GND | 59 | GND | 64 | PERp11 | 69 | PERn12 | 74 | GND |
55 | GND | 60 | PERp10 | 65 | PERn11 | 70 | GND | 75 | GND |
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PCI Express | 87 |