Sata Data And Power; Pci Express - HP dc7900 - Convertible Minitower PC Service & Reference Manual

SATA Data and Power

Drive Connector
Pin Signal
S1 Ground
S5 B-
P1 Ground
P5 B-
P9 V 5
P13 V 12
S = Data, P = Power

PCI Express

x1, x4, x8, and x16 PCI Express Connector
Pin A
Pin Signal
1 PRSNT1
2 +12V
3 +12V
4 GND
5 JTAG2
26 PERn(2)
27 GND
28 GND
29 PERp3
30 PERn3
51 GND
220 Appendix A Connector Pin Assignments
Pin Signal
S2 A+
S6 B+
P2 V 3.3
P6 Ground
P10 Ground
P14 V12
Pin Signal Pin
6 JTAG3 11
7 JTAG4 12
8 JTAG5 13
9 +3.3V 14
10 +3.3V 15
31 GND 36
32 RSVD 37
33 RSVD 38
34 GND 39
35 PERp4 40
56 PERp9 61
Pin Signal
S3 A-
S7 Ground
P3 V 3.3
P7 V 5
P11 Reserved
P15 V 12
Signal Pin Signal
PERST# 16 PERp0
GND 17 PERn0
REFCLK+ 18 GND
REFCLK- 19 RSVD
GND 20 GND
PERn4 41 GND
GND 42 GND
GND 43 PERp6
PERp5 44 PERn6
PERn5 45 GND
PERn10 66 GND
Pin Signal
S4 Ground
P4 Ground
P8 V 5
P12 Ground
Pin Signal
21 PERp1
22 PERn1
23 GND
24 GND
25 PERp2
46 GND
47 PERp7
48 PERn7
49 GND
50 RSVD
71 GND