HP COMPAQ DC5750 Service & Reference Manual page 150

Connector Pin Assignments
PCI Express
x1, x4, x8, and x16 PCI Express Connector
Pin A
Pin Signal Pin
1 PRSNT1# 6
2 +12V 7
3 +12V 8
4 GND 9
5 JTAG2 10
26 PERn(2) 31
27 GND 32
28 GND 33
29 PERp3 34
30 PERn3 35
51 GND 56
52 PERp8 57
53 PERn8 58
54 GND 59
55 GND 60
76 PERp14 81
77 PERn14 82
78 GND
79 GND
80 PERp15
Pin B information is on the next page
Notes:
x1 PCI Express uses pins 1- 1 8
x4 PCI Express uses pins 1-32
x8 PCI Express uses pins 1-49
x16 PCI Express uses pins 1-8
A–8
Signal Pin Signal
JTAG3 1 1 PERST#
JTAG4 12 GND
JTAG5 13 REFCLK+
+3.3v 14 REFCLK-
+3.3v 15 GND
GND 36 PERn4
RSVD 37 GND
RSVD 38 GND
GND 39 PERp5
PERp4 40 PERn5
PERp9 61 PERn10
PERn9 GND
62
GND GND
63
GND PERp1 1
64
PERp10 PERn1 1
65
PERn15
GND
437963-001
Pin Signal Pin
16 PERp0 21
17 PERn0 22
18 GND 23
19 RSVD 24
20 GND 25
41 GND 46
42 GND 47
43 PERp6 48
44 49
PERn6
45 50
GND
66 GND 71
67 GND 72
68 PERp12 73
69 PERn12 74
70 GND 75
Service Reference Guide, dc5750
Signal
PERp1
PERn1
GND
GND
PERp2
GND
PERp7
PERn7
GND
RSVD
GND
PERp13
PERn13
GND
GND