Intel DX79SI User Manual

Intel Desktop Board DX79SI Technical Product Specification
52
Table 19. USB 3.0 Connector
Pin Signal Name Description
1 Vbus Power
2 IntA_P1_SSRX− USB3 ICC Port1 SuperSpeed Rx−
3 IntA_P1_SSRX+ USB3 ICC Port1 SuperSpeed Rx+
4 GND Ground
5 IntA_P1_SSTX− USB3 ICC Port1 SuperSpeed Tx−
6 IntA_P1_SSTX+ USB3 ICC Port1 SuperSpeed Tx+
7 GND Ground
8 IntA_P1_D− USB3 ICC Port1 D− (USB2 Signal D−)
9 IntA_P1_D+ USB3 ICC Port1 D+ (USB2 Signal D+)
10 ID Over Current Protection
11 IntA_P2_D+ USB3 ICC Port2 D+ (USB2 Signal D+)
12 IntA_P2_D− USB3 ICC Port2 D− (USB2 Signal D−)
13 GND Ground
14 IntA_P2_SSTX+ USB3 ICC Port2 SuperSpeed Tx+
15 IntA_P2_SSTX− USB3 ICC Port2 SuperSpeed Tx−
16 GND Ground
17 IntA_P2_SSRX+ USB3 ICC Port2 SuperSpeed Rx+
18 IntA_P2_SSRX− USB3 ICC Port2 SuperSpeed Rx+
19 Vbus Power
Table 20. Chassis Intrusion Header
Pin Signal Name
1 Intruder#
2 Ground
Table 21. Processor, Front and Rear Chassis, and Auxiliary
(4-Pin) Fan Headers
Pin Signal Name
1 Ground
(Note)
2 +12 V
3 FAN_TACH
4 FAN_CONTROL
Note: These fan headers use Pulse Width Modulation control for fan speed.

Intel DX79SI Specifications

General

Brand	Intel
Model	DX79SI
Category	Motherboard
Language	English