User Guide

20 ASUS P3B-F User’s Manual
3. HARDWARE SETUP
Motherboard Settings
3. H/W SETUP
4) JumperFree
TM
Mode Setting (JEN)
This allows you to enable or disable JumperFree
TM
mode. JumperFree
TM
mode
allows processor settings to be made through BIOS setup.
NOTE: In JumperFree
TM
mode, all dip switches (DSW) must be set to OFF.
Setting JEN
Enable (jumperfree) [2-3] (default)
Disable (jumper) [1-2]
R
P3B-F
P3B-F Jumper Mode Setting
Jumper JumperFree
123
1
2
3
JEN
NOTE: In JumperFree mode, your system will start up at a bus speed of 66MHz
(2.0x frequency multiplier is used for processors with unlocked multiplier) and
automatically enter BIOS setup for you to select your processor internal speed
after you have changed/reinstalled the processor or after a system hangup due to
improper CPU settings (see 4.4 Advanced Menu).
5) I/O Voltage Setting (JP20)
This jumper allows you to select the voltage supplied to the DRAM, chipset,
and AGP.
Setting JP20
3.50 Volt [1-2] (default)
3.65 Volt [2-3]
R
P3B-F
P3B-F Input/Output Voltage Setting
JP20
(VIO)
3.50 Volt
(default)
1
2
3
3.65 Volt
123
WARNING! Using a higher voltage may help when overclocking but may result
in the shortening of your computer components’ life. Leave on default setting.