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Installing and Configuring the EVGA nForce 680i SLI Motherboard
22
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
Empty
10
IEEE 1394a (Optional)
The IEEE 1394 expansion cable bracket is provided in the box but if you do
not require the additional external connection 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 end of the cable to the IEEE 1394 connector on the
motherboard.
Table 3. IEEE 1934a 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 GND
10
8
6
4
2
9
7
5
3
1