Usb 3.0 Connector; Chassis Intrusion Header; Processor, Front And Rear Chassis, And Auxiliary (4-Pin) Fan Headers - Intel DX79SI Specification

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