HP Dc5700 HP Compaq dc5700 Business PC Service Reference Guide, 1st Edition - Page 148

Connector Pin Assignments PCI Express x1, x4, x8, and x16 PCI Express Connector Pin B Pin Signal Pin Signal 1 +12V 2 +12V 3 RSVD 4 GND 5 SMCLK 6 SMDAT 7 GND 8 +3.3v 9 JTAG1 10 3.3vAux 26 GND 27 PETp3 28 PETn3 29 GND 30 RSVD 31 PRSNT2# 32 GND 33 PETp4 34 PETn4 35 GND 51 PETn8 52 GND 53 GND 54 PETp9 55 PETn9 56 GND 57 GND 58 PETp10 59 PETn10 60 GND 76 GND 77 GND 78 PETp15 79 PETn15 80 GND 81 PRSNT2# 82 RSVD Notes: 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 1-82 Pin Signal 11 WAKE# 12 RSVD 13 GND 14 PETp0 15 PETn0 36 GND 37 PETp5 38 PETn5 39 GND 40 GND 61 GND 62 PETp11 63 PETn11 64 GND 65 GND Pin Signal 16 GND 17 PRSNT2# 18 GND 19 PETp1 20 PETn1 41 PETp6 42 PRTn6 43 GND 44 GND 45 PETp7 66 PETp12 67 PETn12 68 GND 69 GND 70 PETp13 Pin Signal 21 GND 22 GND 23 PETp2 24 PETn2 25 GND 46 PETn7 47 GND 48 PRSNT2# 49 GND 50 PETp8 71 PETn13 72 GND 73 GND 74 PETp14 75 PETn14 A-8 437804-001 Service Reference Guide, dc5700