Chapter 2 Installation Instructions
23
Jumpers
The users can change the jumper settings on this motherboard if needed. This
section explains how to use the various functions of this motherboard by chang-
ing the jumper settings. Users should read the following content carefully prior to
modifying any jumper settings.
Description of Jumpers
1.
For the jumpers on this motherboard, pin 1 can be identified by the silk-
screen printed
“
”
next to it. However, in this manual, pin 1 is simply
labeled as
“
1
”
.
2.
The following table provides some explanation of the jumper pin settings.
User should refer to this when adjusting jumper settings.
Jumper Diagram Definition Description
1-2
Set pin1 and pin2 closed
2-3
Set pin2 and pin3 closed
Closed
Set the pin closed
Open
Set the pin opened
1
1
1
1
1
1
Clear CMOS Jumper: CLR_CMOS
The motherboard uses the CMOS RAM to store all
the set parameters. The CMOS can be cleared by
removing the CMOS jumper.
How to clear CMOS?
1. Turn off the AC power supply and connect pins 2
and 3together using the jumper cap.
2. Return the jumper setting to normal (pins 1 and
2 together with the jumper cap).
3. Turn the AC power supply back on.
NORMAL
(Default)
CLR_CMOS
CLEAR
1
3
2
1
3
2
Warning:
1. Disconnect the power cable before adjusting the jumper settings.
2. Do not clear the CMOS while the system is turned on.
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