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780i 3-Way SLI Motherboard
NVIDIA Corporation
18 October 17, 2007 | DU-03597-001_v01
Table 2. Front Panel Header Pins
Pin
Signal In/Out
Description
1 HD_PWR Out Hard disk LED pull-up to +5V HD_LED
3 HDA# Out Hard disk active LED
2 HDR_BLNK_GRN Out Front panel green light PWRLED
4 HDR_BLNK_YEL Out Front panel yellow light
5 GND Ground RESET
7 FP_RESET# In Reset switch
6 SWITCH_ON# In Power switch PWRSW
8 GND Ground
No Connect 9 No Connect
Empty 10 Empty
IEEE 1394a
The IEEE 1394 expansion cable bracket is provided in the box but if you do
not require the additional external connections, you do not need to install it.
1. Secure the bracket to either the front or rear panel of your chassis (not all
chassis are equipped with the front panel option).
2. Connect the two ends of the cables to the IEEE 2394 connectors on the
motherboard.
Table 3. IEEE 1394a Connector Pins
Connector
Pin Signal
1 TPA+
2 TPA-
3 GND
4 GND
5 TPB+
6 TPB-
7 +12V
8 +12V
9 Empty
IEEE 1394a Connector
10
8
6
4
2
9
7
5
3
1
10 GND
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