2.2.7 PS/2 Keyboard & Mouse Power Selection
The 3 pin jumper JP3 is used for
PS/2 keyboard & mouse’s power
selection. When JP3 is set to 2-3,
the keyboard is powered by +5Vsb
which will keep the keyboard LED
always lit and indicates user can
power on computer by key-in
password. You can set the pass-
word in the BIOS “Power On
function” of “Integrate Peripheral
Screen”.
JP3 shunt 1-2: PS/2 keyboard & mouse use power supply’s +5V.
JP3 shunt 2-3: PS/2 keyboard & mouse use power supply’s +5Vsb
(+5 volt standby).
2.2.8 Intel Pentium II & Celeron CPU Soft-Menu Setting
The Soft-Menu (jumperless) design of the P6F94 allows the user to
set CPU Bus Clock and CPU core to Bus clock multiplier through
the BIOS.
CPU Bus Clock: The CPU Bus Clock is defined as the CPU input
clock. For example; the CPU Bus Clock for Intel Pentium II 233,
266, 300 and 333MHz is 66.6MHz. For Celeron 266MHz is
66.6MHz.
CPU Core to Bus Clock Multiplier: The CPU internal core clock
is equal to the “CPU Bus Clock” times the “CPU Core to Bus Clock
Multiplier”. For example, if the CPU Bus Clock is 66.6MHz and
the CPU Core to Bus clock Multiplier is 5.0, the actual CPU core
clock will be 333MHz.
CPU Voltage: There is no hardware or BIOS settings needed for
CPU operating voltage. The switching regulator circuit can auto-
detect the CPU type on the P6F94 mainboard and generate the
proper operating voltage for the CPU.
32 P6F94 User’s Manual
Chapter 2:Hardware Installation
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