Table 25. High-Density Front Panel 34-Pin Header Pin Out (J7J1); Front Panel Connector - Intel S875WP1LX Specification

S875WP1-E TPS
Pin Signal Name
A25 Vcc3.3
A26 AD30
A27 AD28
A28 Vcc3.3
A29 AD26
A30 AD24
A31 Ground
A32 AD_STB1#
A33 C/BE3#
NOTE
The AGP connector is keyed for 1.5 V AGP cards only. Do not attempt to install a legacy
3.3 V AGP card. The AGP connector is not mechanically compatible with legacy 3.3 V AGP
cards.
5.4

Front Panel Connector

A high density, 34-pin SSI header is provided to support a system front panel. The header
contains reset, NMI, power control buttons, and LED indicators. The following table details the
pin out of the header.

Table 25. High-Density Front Panel 34-Pin Header Pin Out (J7J1)

Pin
1 Power LED Anode
3 Key
5 GND
7 HDD Activity LED Anode
9 HDD Activity LED Cathode
11 Power Switch
13 GND (Power Switch)
15 FP_RST*
17 GND (Reset Switch)
19 ACPI Sleep Switch
21 GND (ACPI Sleep Switch
23 Unused
25 Key
27 Unused
29 Unused
31 Unused
33 Unused
Revision 4.0
Pin Signal Name Pin
B25 Vcc3.3 A58
B26 AD31 A59
B27 AD29 A60
B28 Vcc3.3 A61
B29 AD27 A62
B30 AD25 A63
B31 Ground A64
B32 AD_STB1 A65
B33 AD23 A66
Signal Name Pin(s)
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
Connectors and Jumper Blocks
Signal Name Pin Signal Name
Vddq B58 Vddq
AD_STB0# B59 AD_STB0
AD6 B60 AD7
Ground B61 Ground
AD4 B62 AD5
AD2 B63 AD3
Vddq B64 Vddq
AD0 B65 AD1
VRREFG_C B66 VREFC_G
Function
5VSB
Unused
Unused
Unused
Unused
NIC#1 Activity LED Anode
NIC#1 Activity LED Cathode
I1C SDA
I2C SDA
Chassis Intrusion
NIC#2 Activity LED Anode
NIC#2 Activity LED Cathode
Key
Unused
Unused
Unused
Unused
43