Intel D955XCS Product Guide - Page 41

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. A FP Audio Port1L Port1R Port2R Sense_Send Port2L 12 34 56 7 9 10 GND Presence# Sense1_Ret Key (no pin) Sense2_Ret USB A USB B Power (+5V) 1 2 Power (+5V) F D- 3 4 D- D+ 5 6 D+ Ground 7 8 Ground Key (no pin) 10 N/C D IEEE 1394b TPA+ 1 TPA_REF 3 TPB+ 5 +12 V (fused) 7 Key (no pin) 2 TPA4 TPB_REF 6 TPB8 +12 V (fused) 10 Ground G B IEEE 1394a H TPA1+ 1 2 TPA1- Ground 3 4 Ground TPA2+ 5 6 TPA2+12 V 7 8 +12 V Key (no pin) 10 Ground I C Front Panel On/Off Power LED 9 87 65 43 21 No Connection Reset HD LED E J 31 C Item A B C D E F Description Front panel audio IEEE 1394a Alternate power LED IEEE 1394b Front panel Hi-speed USB Figure 22. Internal Headers OM17786 41

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Installing and Replacing Desktop Board Components
41
Connecting Internal Headers
Before connecting cables to the internal headers, observe the precautions in "Before You Begin" on
page 23.
OM17786
B
C
On/Off
Power LED
HD LED
Reset
No Connection
1
2
3
4
5
7
6
8
9
1
3
USB A
USB B
1
5
6
7
8
3
4
2
10
Power (+5V)
Power (+5V)
D-
D+
Ground
Key (no pin)
N/C
D-
D+
Ground
A
F
1
5
6
7
3
4
2
10
9
Port1L
Port1R
Port2R
Sense_Send
Port2L
GND
Presence#
Sense1_Ret
Key (no pin)
Sense2_Ret
C
E
D
FP Audio
1
5
6
7
8
3
4
2
10
TPA1+
Ground
Key (no pin)
Ground
TPA1-
TPA2+
TPA2-
+12 V
+12 V
Ground
IEEE 1394a
(fused)
1
5
6
7
8
3
4
2
10
TPA+
TPA_REF
Key (no pin)
TPB_REF
TPA-
TPB+
TPB-
+12 V
+12 V
Ground
IEEE 1394b
(fused)
Front Panel
Item
Description
A
Front panel audio
B
IEEE 1394a
C
Alternate power LED
D
IEEE 1394b
E
Front panel
F
Hi-speed USB
Figure 22.
Internal Headers