Jumper JP4: Onboard Audio Enable/Disable
Use this jumper to enable or disable the onboard audio system and
modem. Disable the built-in audio if you plan on using another
audio system on an expansion card.
Function Jumper
Setting
Enable Audio/Modem
Short Pins 1-2
Disable Audio/Modem
Short Pins 2-3
Jumper JP5: System Bus Frequency (100 MHz) Selector
Use this jumper to set the system bus frequency. In the normal
setting, the system automatically selects the correct frequency
according to the kind of processor installed. In the Force 100 MHz
setting, the system uses a 100 MHz system bus even if the
processor is designed to operate with a 66 MHz bus.
Function Jumper
Setting
Normal Short
Pins
1-2
Force 100 MHz
Short Pins 2-3
Jumper JP6: Audio Codec Selector
Use this jumper to select if the system uses the audio codec chip
integrated on the mainboard, or an audio codec chip located on an
optional AMR card.
Function Jumper
Setting
Turn on onboard codec
Short Pins 1-2
Turn off onboard codec
Short Pins 2-3
Jumper JP7: Enable/Disable Onboard LAN
Use this 3-pin jumper to enable or disable the onboard network
adapter.
Function Jumper
Setting
Enable Onboard LAN
Short Pins 1-2
Disable Onboard LAN
Short Pins 2-3
Jumper JP8: IDT or Intel processor Selector
Use this 2-pin jumper to select if you are installing an Intel
processor or an IDT processor in the socket-370 processor socket.
Function Jumper
Setting
Intel processor
Short Pins 1-2
IDT processor
Open Pins 1-2