EPOX 3XCA2 Manuale utente

Motherboard

User's Manual

Chapter 1

1-2 Product Features1-2 Product Features

1-2 Product Features

- Innovative SeePU technology for jumperless CPU installation

- Superior Overclocking capability with up to 150MHz frequency, Subtle

1MHz frequency

- Complete CPU protection with OVT (OverVoltage Protect) and OCP (Over

Current Protect) technology

- Embedded System Monitor Hardware

- Poly-fuse over-current protection with error warning for keyboard circuitry

- Hardware design meets Microsoft PC99 requirements

- Complete Data Security:

*Flash BIOS write protection against unauthorized access

*Trend ChipAway Virus for a 100% virus free system boot-up

-Advanced Management Features:

*Power-on events:

WOL(Wake-on-LAN) network card, Modem ring, RTC Alarm

*Software power-off control for Win95

*Over-ride power button

* Three states advanced Power-failure recovery: Always On, Always Off, Last

state

* Blinking Power-LED in suspend

* Hardware Reset Protect

Hardware Setup

Chapter 2

Hardware Setup

If your motherboard has already been installed in your computer you may still need

to refer to this chapter if you plan to upgrade your system's hardware.

Besuretodisconnectthepowercablefromthepowersourcebeforeperforming

any work on your motherboard, i. e. installing a CPU, memory module,

changing a jumper setting, etc. Not doing so may result in electrical shock!

2-1 Introduction to Jumpers

Jumpers are used to select between various operating modes. A jumper consists of

a row of gold colored pins that protrude from the surface of the motherboard. It is

important not to confuse jumpers with connectors or headers.

Puttingjumpercapsonanythingthatisnotajumpermayresultindamaging

your motherboard. Please refer to Section 1-3, Motherboard Layout, for the

location of jumpers on your motherboard.

As indicated in Figure 2-1 below, a cap is used to cover the pins of a jumper, resulting

in shorting those pins that it covers. If the cap is removed from the top of the pins,

the jumper is left "open." The number 1 shown both in the diagram below and in

all multiple pin jumper and header diagrams in this manual indicates the pin

designated with the number 1. The numbering of the remaining pins follows in

sequence.

A cap over pin 1 and

pin 2 shorts these pins

Pins SettingCap

A 3-pin jumper

Figure 2-1

Cap Style 2

Chapter 2

FAN2

J2,

CN14,

JP1,

CN6

CN2,JP7,

JP3/JP4,

CN3,

CN4

JP12,JP13

JP5,

JP6

JPX1

FAN1,

CN1,

Hardware Setup

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Jumper &

Connector No. Function Page

PW1 ATX Power Supply Connector 12

JP1 Onboard Audio (Optional for C-Media) 15

JP3/JP4 Audio Line_out or Speaker_out 15

JP5 Boot BIOS Select (Optional for TwinBIOS) 15

JP6 Clear CMOS Data 16

JP7 Primary Audio CODEC Select (Optional) 16

JP12/JP13 CPU Bus Frequency 16

CN1

Over-ride Power Button Connector 13

Power Indicator LED Connector 13

Green Switch / Green LED Connector 14

System Reset Switch Connector 14

Speaker Connector 14

IDE Activity LED Connector 14

Turbo LED Connector 14

JPX1 IDE RAID Controller (Optional) 17

CN2 CD-ROM Audio_in Connector 17

CN3 Auxiliary CD-ROM Audio-in Connector 17

CN4 Audio Mono -in/out Connector (Optional) 17

CN6 WOL(Wake On LAN) Connector 18

CN14 USB 2/3 Connector 18

USB Ports USB 0/1ports 18

PS/2 Ports PS/2 Mouse and Keyboard Ports 19

IR Infrared Connector 19

J2 Fiber Optical Connector (Optional) 19

FAN1/2 CPU/ System Cooling Fan Connector 19

Chapter 2

2-4 Connector and Jumper Settings

Connectors are used to link the system board with other parts of the system, including

the power supply, the keyboard, and the various controllers on the front panel of

the system case.

Thepowersupplyconnector isthelastconnectiontobemadewhileinstalling

amotherboard. Before connecting the power supply,pleasemakesure it is not

connectedtothepower source.

ATX Power Supply Connector (PW1)

The power cord leading from the system's power

supply to the external power source must be the

very last part connected when assembling a system.

Tosupport thisfunction,a switchingpower

supply with a minimum of 750mA 5VSB

is required.

The ATX power supply provides a single 20-pin

connector interface which incorporates standard +/

-5V, +/-12V, optional 3.3V and Soft-power signals.

The Soft-power signal, a 5V trickle supply is

continuously supplied when AC power is

available. When the system is in the Soft-Off

mode, this trickle supply maintains the system in

it's minimum power state.

Power-On By Modem

While in Soft-off state, if an external modem ring-up signal occurs, the system wakes

up and can be remotely accessed. You may enable this function in BIOS's Power

Management Setup menu.

Poly-fuse Over Current Protection

The poly-fuse protects the system from dangerous voltages the system might be

exposed to via the keyboard or USB connectors. In case of such exposure, the poly-

fuse will immediately be disconnected from the circuit, just like a normal fuse. After

being disconnected for a certain period of time, the poly-fuse will return to its normal

state, after which the keyboard or USB can function properly again. Unlike

conventional fuses, the poly-fuse does not have to be replaced, relieving the user

wasted time and inconvenience.

Hardware Setup

Front Panel Connector Set (CN1) A through F

A.Over-ridePowerButtonConnector

The power button on the ATX chassis can be used

as a normal power switch as well as a device to

activate Advanced Power Management Suspend

mode. This mode is used for saving electricity

when the computer is not in use for long periods of

time. The Soft-OFF by PWR-BTTN function in

BIOS'sPowerManagementSetupmenumustbeset

to "Delay 4 Sec." to activate this function.

When the Soft-OFF by PWR-BTTN function is

enabled, pushing the power button rapidly will

switch thesystemtoSuspendmode. Anyoccurrence

of external activities such as pressing a key on the

keyboard or moving the mouse will bring the

system back to Full-On. Pushing the button while

in Full-On mode for more than 4 seconds will

switch the system completely off. See Over-ride

Power Button Operation diagram.

B.Power Indicator LED Connector

Plugging this connector into the lock on the front

panel of the system case allows the lock to enable

or disable the keyboard. This function provides

limited security against casual intruders. The

power indicator LED shows the system's power

status. It is important to pay attention to the

correct cables and pin orientation (i.e., not to

reverse the order of these two connectors.)

Software Power-Off Control

This motherboard can be powered down using the Windows 95/98 Software Power-Off

function. To power down your computer, click the START button on the Windows

95/98 task bar. Select "Shut Down The Computer" and the system turns off. The

message "It is now safe to turn off your computer" will not be shown when using this

function.

Over-ride Power Button OperationOver-ride Power Button Operation

Over-ride Power Button Operation

Power Indicator LED

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Pin Definition

1 +5V DC

2No Connection

3Ground

Chapter 2

C. Green Switch/Green LED Connector

Some ATX cases provide a Green switch which

is used to put the system in Suspend mode. In

Suspend mode, the power supply to the system

is reduced to a trickle, the CPU clock is stopped,

and the CPU core is in it's minimum power state.

The system is woken up whenever the keyboard

or mouse is touched. The system resumes in

different ways as defined by Power Management

Setup screen in BIOS.

D.SystemResetSwitchConnector

This connector should be connected to the reset

switch on the front panel of the system case. The

reset switch allows you to restart the system

without turning the power off.

E.SpeakerConnector

F.IDEActivity LEDConnector

The IDE activity LED lights up whenever the

system reads/writes to the IDE devices.

G.TurboLEDConnector

This motherboard does not have a Turbo/De-turbo

speed modes. So the turbo LED will always light.

Blinking LED in Suspend Mode

While in Suspend mode, the LED light on the front panel of your computer will

flash. Suspend mode is entered by pressing the Override Power Button, pushing

the Green button on your ATX case, or enabling the Power Management and Suspend

Mode options in BIOS's Power Management menu.

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Pin Definition

1 System

2 GND

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Pin Definition

1Speaker Signal

2No Connection

3No Connection

4+5V DC

Hardware Setup

Optional Onboard Audio (JP1)

This function allows you to enable and disable

the on board audio. You must set the jumper's cap

to pins 1-2 to enable or set pins 2-3 to disable

this function.

Audio Line_out or Speaker_out (JP3/JP4)

This jumper allows you to select between audio

line-out or speaker out function. Set both JP3 and

JP4pinsto1-2forline-outfunctionorset both JP3

and JP4 pins to 2-3 for speaker out function.

Optional Boot BIOS Select (JP5)

This feature allows you to select a BIOS to boot

up your system. Set the pin to 1-2 to enable Boot

BIOS select in the BIOS Features Setup and then

select either BIOS 1 or BIOS 2 for startup (see

section 2-4).The feature also allows you to

manually shift to another BIOS once the BIOS fail

to boot. Set pin to 2-3 to boot from BIOS 1 and

then press the power on button to boot up or press

reset and power on button hold for 2-3 second and

then release to boot from BIOS 2.

Enable

1 1 Disable

JP3

JP4

Line_out

JP3

JP4

Speaker_out (default)

1Boot BIOS select (default)

1BIOS 1 (Power on only)/

BIOS 2 (Power on + Reset button)

Chapter 2

Clear CMOS Data (JP6)

To clear the contents of the CMOS, please follow

the steps below.

1. Disconnect the system power supply from the

power source.

2. Set the jumper cap at location 2~3 for 5 seconds,

then set it back to the default position.

3. Connect the system's power and then start the

system.

4. Enter BIOS's CMOS Setup Utility and choose

Load Setup Defaults. Type Y and press enter.

5. Set the system configuration in the Standard

CMOS Setup menu.

Optional Primary Audio CODEC Select (JP7)

Short pin 1-2 to enable onboard AC`97 CODEC.

Short pin 2-3 to enable AMR (Soft Audio/Modem

riser).

CPU Bus Frequency (JP12/JP13)

This jumper allows the CPU bus frequency to be

determined either by the CPU or the user. Set both

jumper cups to pin 1-2 (default) if you are not sure

what frequency your CPU support.

Normal (default)

Clear CMOS data

1AMR (Soft-Audio/Modem riser)

Onboard CODEC (Default)

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JP12 JP13

Auto (default) 1 ~ 2 1 ~ 2

66MHz 2 ~ 3 2 ~ 3

100MHz 2 ~ 3 Open

133MHz Open Open

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