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5 jumpers – Foxconn Q77M User Manual

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2-5 Jumpers

For some features needed, users can change the jumper settings on this mother�oard to modify them.
This section explains how to use the various functions of this mother�oard �y changing the jumper
settings. Users should read the following content carefully prior to modifying any jumper setting.

Description of Jumpers

1. For any jumper on this motherboard, pin 1 can be identified by the bold silkscreen next to it.

However, in this manual, pin 1 is simply la�eled as “1”.

2. The following table explains different types of the jumper settings. "Closed" means placing a jumper

cap on the two pins to temporarily short them. The shorting can also �e done �y touching two
pins �y a screwdriver for a few seconds, �ut using jumper cap is recommended. It can prevent
hazardous ESD (Electrical Static Discharge) pro�lem.

Clear CMoS Jumper: ClR�CMoS

The mother�oard uses CMOS RAM to store the �asic hardware information (such as �IOS data,
date, time information, hardware password... etc.). Clear CMOS data is the fast way to go �ack to
factory default when the BIOS settings were mistakenly modified.

The steps to clear CMOS data are :

1. Turn off the computer, unplug the power cord from the power outlet.
2. Remove jumper cap from pins 2-3, put it onto pins 1-2 to short them. This will clear CMOS

data.

3. Return the setting to its original with pins 2-3 closed.
4. Plug in the power cord to your computer and turn it on.
5. Go to BIOS Setup to configure new system as described in next chapter.

■ Disconnect the power cable before adjusting the jumper settings.

Disconnect the power ca�le �efore adjusting the jumper settings.

■ Do not clear the CMOS while the system is turned on.

Do not clear the CMOS while the system is turned on.

WA

RNING!

Clear

1
2
3

Normal
(Default)

1
2
3

CLR_CMOS

Jumper

Diagram

Definition

Description

1-2

Set Pin 1 and Pin 2 closed

2-3

Set Pin 2 and Pin 3 closed

1

1

1