How to Set Jumpers

How to Set Jumpers
How to Set Jumpers
A jumper consists of two or more pins mounted on the mainboard. Some jumpers might be arranged in a series with each
pair of pins numbered differently. Jumpers are used to change
the electronic circuits on the mainboard. When a jumper cap (or
shunt) is placed on two jumper pins, the pins are SHORT. If the
jumper cap is removed (or placed on just a single pin), the pins
are OPEN.
Short
Open
This illustration shows a 2-pin
jumper. When the jumper cap is
placed on both pins, the jumper is
SHORT. If you remove the jumper
cap, or place the jumper cap on
just one pin, the jumper is OPEN.
This illustration shows a 3-pin
jumper. The jumper cap is placed
on pins 2 and 3, so this jumper
setting is SHORT PINS 2-3.
This illustration shows the same
3-pin jumper. The jumper cap is
placed on pins 1 and 2, so this
jumper setting is SHORT PINS 12.
In this manual, all the jumper illustrations clearly show the pin
numbers. When you are setting the jumpers, make sure that the
jumper caps are placed on the correct pins to select the function
or feature that you want to enable or disable.
1
Check the Jumper Settings
Check the mainboard jumpers to ensure that the board is configured correctly.
JP2
1
JP9
1
JP10
1
JP1
1
JP4
1
JP5
1
J4
1
JP6
JP1: Clear CMOS jumper
Use this jumper to erase the system setup settings that are
stored in CMOS memory. You might need to erase this data if
incorrect settings are preventing your system from operating. To
clear the CMOS memory, turn off the system, disconnect the
power cable from the mainboard, and short the appropriate pins
for a few seconds.
Function
Jumper Setting
Normal operation
Short pins 1-2
Clear CMOS
Short pins 2-3
2
JP1
1
2
3
JP2: USB port 1-2 wake-up jumper
Use this jumper to enable device activity on USB ports 1-2 to
power on the computer.
Function
Jumper Setting
Disable
Short pins 1-2
Enable
Short pins 2-3
JP2
1
2
3
JP4: Codec selector jumper
Use this jumper to select the onboard AC 97 audio codec or Audio Modem Riser (AMR) slot.
Function
Jumper Setting
Use on board codec
Short pins 1-2
Use AMR slot codec
Short pins 2-3
JP4
1
2
3
JP5: BIOS write protect jumper
Use this jumper to make the BIOS read-only.
Function
Jumper Setting
Disable
Short pins 1-2
Enable
Short pins 2-3
JP5
1
2
3
JP6: USB port 3-4 wake-up jumper
Use this jumper to enable device activity on USB ports 3-4 to
power on the computer.
Function
Jumper Setting
Disable
Short pins 1-2
Enable
Short pins 2-3
JP6
1
2
3
JP7: Onboard codec mode
Use this jumper to define the onboard codec mode function.
Function
Jumper Setting
Master
Open
Slave
Short
3
JP7
1
2
JP9/10: FSB 100/133 select jumpers
Note: JP9 and JP10 are only supported by the VIA VT8363A
North Bridge chipset
Use these jumpers to select the FSB speed.
Function
Jumper Setting
100 MHz FSB
Short pins 2-3 of JP9
JP9
Short pins 1-2 of JP10
1
2
3
JP10
1
133 MHz FSB
2
3
Short pins 1-2 of JP9
JP9
Short pins 2-3 of JP10
1
2
3
JP10
1
4
2
3
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