Jumpers - Foxconn H77MXV Series User Manual

HARDWARE INSTALLATION

2-5 Jumpers

For some features needed, users can change the jumper settings on this motherboard to modify
them. This section explains how to use the various functions of this motherboard by 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 labeled 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 be done by touch-
ing two pins by a screwdriver for a few seconds, but using jumper cap is recommended. It can
prevent hazardous ESD (Electrical Static Discharge) problem.
Jumper
1
1
Clear CMOS Jumper: CLR_CMOS
The motherboard uses CMOS RAM to store the basic hardware information (such as BIOS
data, date, time information, hardware password...etc.). Clear CMOS data is the fast way to go
back 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.
■ Do not clear the CMOS while the system is turned on.
18
Diagram
1
1
1
1
1
Clear
2
3
1
Normal
2
(Default)
3
CLR_CMOS
Definition
Closed Set Pin 1 and Pin 2 closed
Open Set Pin 1 and Pin 2 Open
1-2 Set Pin 1 and Pin 2 closed
2-3 Set Pin 2 and Pin 3 closed
Description