Quick Jumper Setting Reference
If you are familiar with most of the material in this chapter, you can begin
preparing the mainboard for installation by using this quick reference to
begin the setting the jumpers. A detailed description of the jumper setting
appears later in this chapter.
JP1: Clear CMOS memory jumper
Use this 3-pin jumper top clear all the current data stored in the CMOS
memory.
Function Jumper
Cap
Normal operation
Short pins 1-2
Clear CMOS
Short pins 2-3
JP1
1 2 3
JP2: Keyboard power on jumper
Use this 3-pin jumper to enable keyboard power on with hot keys or
password.
Function Jumper
Cap
Disable keyboard power on Short pins 1-2
Enable keyboard power on
Short pins 2-3
1 2 3
JP2
JP3: Force 100 MHz front side bus jumper
Use this jumper to disable the automatic detection of the correct front
side bus, and force the system to run with a 100 MHz front side bus.
Function Jumper
Cap
Normal operation
Short Pins 1-2
Force 100 MHz FSB
Short pins 2-3
JP3
1 2 3
JP4: Force 133 MHz front side bus jumper
Use this jumper to disable the automatic detection of the correct front
side bus, and force the system to run with a 133 MHz front side bus
.
Function Jumper
Cap
Normal operation
Short Pins 1-2
Force 133 MHz FSB
Short pins 2-3
JP4
1 2 3
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