Chapter 2: Installation
2-6 Jumper Settings
Explanation of
Jumpers
To modify the operation of the motherboard, jumpers can be used to choose between optional settings. Jumpers create shorts between two pins to change the function of the connector. Pin 1 is identified with a square solder pad on the printed circuit board. See the motherboard layout pages for jumper locations.
Note: On two pin jumpers, "Closed" means the jumper is on and "Open" means the jumper is off the pins.
GLAN Enable/Disable
J7 enables or disables the GLAN port(s) on the motherboard. See the table on the right for jumper settings. The default setting is enabled.
CMOS Clear
JBT1 is not literally a jumper but con- sists of two contact pads. To clear the contents of CMOS, short these pads together by touching them both with a metal conductor such as the head of a small screwdriver. JBT1 is located between the FPUSB4/5(J21) and Chassis Intrusion(J25) headers on the motherboard. For ATX/SSI power supplies, you must completely shut down the system and remove the AC power cord before clearing CMOS.
Connector | 3 2 1 |
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Jumper
Cap
3 2 1
Setting
Pin
GLAN
Enable/Disable
Jumper Settings
(J7)
Jumper |
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Position | Definition |
Pins | Enabled |
Pins | Disabled |
JBT1
