Compaq 315eu Maintenance and Service Guide - Compaq 100eu Small Form Factor, 1 - Page 205

PCI Express x1, x4, x8, and x16 PCI Express Connector Pin B Pin Signal Pin Signal Pin Signal Pin Signal Pin Signal 1 +12V 6 SMDAT 11 WAKE# 16 GND 21 GND 2 +12V 3 RSVD 4 GND 5 SMCLK 7 GND 8 +3.3 V 9 JTAG1 10 3.3vAux 12 RSVD 13 GND 14 PETp0 15 PETn0 17 GND 18 PETp1 19 PETn1 20 22 GND 23 PETp2 24 PETn2 25 GND 26 GND 31 PRSNT2# 36 GND 41 PETp6 46 PETn7 27 PETp3 32 GND 37 PETp5 42 PRTn6 47 GND 28 PETn3 33 PETp4 38 PETn5 43 GND 48 PRSNT2# 29 GND 34 PETn4 39 GND 44 GND 49 GND 30 RSVD 35 GND 40 GND 45 PETp7 50 PETp8 51 PETn8 56 GND 61 GND 66 PETp12 71 PETn13 52 GND 57 GND 62 PETp11 67 PETn12 72 GND 53 GND 58 PETp10 63 PETn11 68 GND 73 GND 54 PETp9 59 PETn10 64 GND 69 GND 74 PETp14 55 PETn9 60 GND 65 GND 70 PETp13 75 PETn14 76 GND 81 PRSNT2# 77 GND 82 RSVD 78 PETp15 79 PETn15 80 GND Pin B information is on the next page NOTE: x1 PCI Express uses pins 1-18. x4 PCI Express uses pins 1-32. x8 PCI Express uses pins 1-49. x16 PCI Express uses pins 1-8. PCI Express 195