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Chapter 2: Hardware information
2.7 Switches and jumpers
The motherboard frequency is adjusted through the DIP switches. The
white block represents the switch position. The illustration below shows
the ON and OFF positions of the switches.
The JEN jumper is set in conjunction with the DIP switches. In
JumperFree mode, set all the DIP switches to OFF.
In jumper mode, set the switches as shown in item 2 (CPU Core:Bus
frequency multiple) and item 3 (CPU external frequency selection).
1. JumperFree™ mode (JEN)
This jumper allows you to enable or disable the JumperFree™ mode.
The JumperFree mode allows you to change CPU settings through the
BIOS setup instead of using the DIP switches.
The JEN jumper must be set to pins 2-3 (jumper mode) if you wish to
use the DIP switches. Otherwise, setting the switches does not
produce any effect.
P4B533
®
P4B533 DIP Switches
ON
OFF
DSW2
ON
OFF
1.Frequency Selection
2.Frequency Selection
3.Frequency Selection
4.Frequency Selection
5.Frequency Selection
6.Frequency Selection
1.Frequency Multiple
2.Frequency Multiple
3.Frequency Multiple
4.Frequency Multiple
ON
1234
ON
12345
6
DSW1
P4B533
®
ON
1234
P4B533
JumperFree™ Mode Setting
JEN
Jumper Free
(Default)
Jumper Mode
1
DSW1
2
DSW2
ON
12345
6
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