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780i 3-Way SLI Motherboard
EVGA
20
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 1394 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
IEEE 1394a Connector
10
8
6
4
2
9
7
5
3
1
9 Empty