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7 switches and jumpers, Asus p4b motherboard user guide 2-17 – Asus P4B User Manual

Page 39

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ASUS P4B motherboard user guide

2-17

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 all
the switches in the OFF position.

Figure 2-21

DIP Switches

The JEN jumper is set in conjunction with the DIP switches. In
JumperFree mode, set all the DIP switches to OFF.

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.

Figure 2-22

JumperFree Mode Setting

P4B

®

P4B DIP Switches

ON

123456789

1

0

SWITCH

1. Frequency Multiple
2. Frequency Multiple
3. Frequency Multiple
4. Frequency Multiple

5. Frequency Selection

6. Frequency Selection

7. Frequency Selection
8. Frequency Selection
9. Frequency Selection

10. Reserved

ON

OFF

P4B

®

P4B JumperFree™ Mode Setting

SWITCH

Jumper Mode

1

2

ON

123456789

1

0

JEN

Jumper Free

(Default)

2

3

OFF

The JEN jumper must be set to pins 1-2 (jumper mode) if you wish to
use the DIP switches. Otherwise, setting the switches does not
produce any effect.