15
JP4: System Bus Frequency Select Jumper
Use this jumper to select a system bus frequency of either Normal or 100
MHz. If Normal, the system automatically selects 66 or 100 MHz,
according to the installed processor. If 100 MHz, the system will force a
system bus of 100 MHz no matter what kind of processor is installed.
Function Jumper Cap
Normal Short pins 1-2
Force 100 MHz Short pins 2-3
JP7: Flash BIOS Enable/Disable Jumper
The mainboard BIOS is stored on an Erasable Programmable Read Only
Memory (EPROM) chip. This means that you can erase the current BIOS
and install an updated BIOS whenever new upgrades are released. See
Chapter 4 for information on using the Flash BIOS utility. Before erasing
the old BIOS and flashing a new BIOS, you must set JP7 to Enable.
After the new BIOS is installed, set JP7 to Disable so that the BIOS
cannot be erased by accident.
Function Jumper Cap
Enable flash BIOS Short pins 1-2
Disable flash BIOS Open pins 2-3
JP4
1 2 3
JP7
1 2 3
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