Chapter 2
Note:
Make sure that the system can provide 1A on +5VSB (+5V
Standby) signal before using the Keyboard Power On function.
Jumper JP3: Onboard Audio System Enable/disable
Use this 3-pin jumper to enable or disable the onboard sound
system.
JP1A: Function
Jumper Setting
Enable Audio System
Short Pins 1-2
Disable Audio System
Short Pins 2-3
Jumper JP4: Set System Bus 100 MHz Forced
Use this jumper to set the system bus frequency. In the normal
setting, the system will automatically select the correct
frequency according to the kind of processor installed. In the
Force 100 MHz setting, the system will use a 100 MHz system
bus even if the processor is designed to operate with a 66 or 133
MHz bus.
Function
Jumper Setting
Normal Operation
Short Pins 1-2
Force 100 MHz
Short Pins 2-3
Jumper JP5: Set System Bus 133 MHz Forced
Use this jumper to set the system bus frequency. In the normal
setting, the system will automatically select the correct
frequency according to the kind of processor installed. In the
Force 133 MHz setting, the system will use a 133 MHz system
bus even if the processor is designed to operate with a 66 or 100
MHz bus.
Function
Jumper Setting
Normal Operation
Short Pins 1-2
Force 133 MHz
Short Pins 2-3
Jumper JP6, JP7: Select Processor Type for Socket-370
Use these 2-pin jumpers to select the processor type you are using
in the Socket-370 socket. If the pins are open, the Socket-370 is set
for use with the Intel processor. If the pins are shorted, the Socket-
370 is set for use with the Cyrix Joshua processor.
Function
Jumper Setting
Intel processor
Open pins 1-2
Cyrix Joshua
Short pins 1-2
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