Intel D945GBO English Product Guide - Page 39

Connecting Internal Headers

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Installing and Replacing Desktop Board Components Connecting Internal Headers Before connecting cables to the internal headers, observe the precautions in "Before You Begin" on page 23. Figure 20 shows the location of the internal headers. B 12 Port1L 1 2 GND Port1R 3 4 Presence# A Port2R 5 6 Sense1_Ret Sense_Send 7 Key (no pin) Port2L 9 10 Sense2_Ret C USB A Power (+5V) DD+ Ground Key (no pin) 12 34 56 78 10 USB B Power (+5V) D- D+ Ground N/C D 1394a TPA1+ Ground TPA2+ +12 V Key (no pin) 12 34 56 78 10 TPA1Ground TPA2+12 V Ground E 3 1 Item A B C HD LED 12 34 Power LED F Reset 56 On/Off 78 No Connection 9 Description Front panel audio Chassis intrusion USB 2.0 (two) Item D E F Description IEEE 1394a (two) Alternate power LED Front panel Figure 20. Internal Headers OM18088 39

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Installing and Replacing Desktop Board Components
39
Connecting Internal Headers
Before connecting cables to the internal headers, observe the precautions in "Before You Begin" on
page 23.
Figure 20 shows the location of the internal headers.
OM18088
Port1L
Port1R
Port2R
Sense_Send
Port2L
GND
Presence#
Sense1_Ret
Key (no pin)
Sense2_Ret
1
5
6
7
3
4
2
10
9
A
USB A
USB B
Power (+5V)
Power (+5V)
D-
D+
Ground
Key (no pin)
N/C
D-
D+
Ground
5
6
7
8
3
4
2
10
1
C
1
2
B
Ground
Ground
TPA2+
TPA2-
TPA1-
TPA1+
+12 V
+12 V
Ground
Key
(no pin)
1394a
1
5
6
7
3
4
2
8
10
D
1
3
E
On/Off
Power LED
HD LED
Reset
No Connection
1
2
3
4
5
7
6
8
9
F
Item
Description
Item
Description
A
Front panel audio
D
IEEE 1394a (two)
B
Chassis intrusion
E
Alternate power LED
C
USB 2.0 (two)
F
Front panel
Figure 20.
Internal Headers