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Mainboard nForce 680i SLI/
Mainboard nForce 680i LT SLI
16
IEEE1394 Header: IEEE1394
These mainboards provide one onboard IEEE1394 port on the back panel of your case. One
additional IEEE1394 header on the mainboard for one more port on the front panel is allowed.
Please connect the header by a cable for use with compatible devices.
Pin Assignment Pin Assignment
1 TPA+ 2 TPA-
3 GND 4 GND
5 TPB+ 6 TPB-
7 +12V 8 +12V
IEEE1394
9 Key 10 GND
Clear CMOS Jumper: CLR_CMOS
The “Clear CMOS” function is used when you are unable boot your system and need to reset
the BIOS settings (CMOS settings) back to the manufacturer’s original settings. This is also a
way to reset the system password if you have forgotten it.
CLR_CMOS Assignment
Pin 1-2 Closed
Clear CMOS Data
Pin 2-3 Closed
Normal (Default)
Note: Close stands for putting a jumper cap onto two header pins.
1. Turn off your system and disconnect the AC power cable.
2. Set CLR_CMOS header to OFF (1-2 Closed).
3. Wait several seconds.
4. Set CLR_CMOS header to ON (2-3 closed).
5. Connect the AC power cable and turn on your system.
6. Reset your new password.
The following steps explain how to reset your CMOS
configurations when you forgot a system password.