AOpen 6BCZ-HW User Manual

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Chapter 2

Hardware Installation

This chapter gives you a step-by-stepprocedure on how to install your system.

Follow each section accordingly.

Caution: Electrostatic discharge (ESD) can damage your processor, disk drives, expansion boards, and other components. Always observe the following precautions before you install a system component.

1.Do not remove a component from its protective packaging until you are ready to install it.

2.Wear a wrist ground strap and attach it to a metal part of the system unit before handling a component. If a wrist strap is not available, maintain contact with the system unit throughout any procedure requiring ESD protection.

2-1

Hardware Installation

2.1 Jumper and Connector Locations

The following figure shows the locations of the jumpers and connectors on the system board:

 

 

 

 

 

 

IrDA

 

 

 

 

 

 

 

JP14

 

 

 

 

 

 

 

 

BIOS

 

 

COM2

PRINTER COM1

USB

KB

I

I

 

 

 

 

S

S

P

P

P

P

FDC

 

 

PS/2

P

 

 

 

A

A

C

C

C

C

C

 

 

 

2

1

I

I

I

I

I

CPU SLOT 1

 

 

 

 

5

4

3

2

1

 

JP28

 

 

 

 

 

 

A

 

 

 

 

 

 

 

 

 

G

 

 

 

 

 

 

 

 

 

P

 

 

 

 

 

 

 

 

 

 

 

 

CPU FAN

SB-Link

 

 

DIMM1

 

 

DIMM2

 

 

DIMM3

Modem-WKUP

 

 

 

JP23

 

FAN

IDE2

PWR2

LANWakeup

IDE1

 

PANEL

 

 

2-2

 

Hardware Installation

 

 

Jumpers:

 

JP14:

Clear CMOS

JP23:

AGP Ratio

JP28:

Keyboard/Mouse Wake Up

Connectors:

PS2:

PS/2 mouse connector

KB:

PS/2 keyboard connector

COM1:

COM1 connector

COM2:

COM2 connector

PRINTER:

Printer connector

PWR2:

ATX power connector

USB:

USB connector

FDC:

Floppy drive connector

IDE1:

IDE1 primary channel

IDE2:

IDE2 secondary channel

CPUFAN:

CPU Fan connector

FAN:

Housing Fan connector

IrDA:

IrDA (Infrared) connector

PANEL:

Front panel (Multifunction) connector

WOM:

Wake On Modem connector

WOL:

Wake On LAN connector

SB-LINK:

Sound Blaster Link connector

Warning: This motherboard supports 4 PCI master card, so you can only install PCI slave card on PCI 5, for example, a PCI VGA card.

2-3

Hardware Installation

2.2 Jumpers

With the help of Pentium II / Pentium III / Celeron VID signal and SMbus, this motherboard is jumper-lessdesign.

2.2.1 Selecting the CPU Frequency

Pentium II / Pentium III / Celeron VID signal and the SMbus clock generator provide CPU voltage auto-detectionand allow the user to set CPU frequency through the CMOS setup, no jumpers or switches are needed. The correct CPU information is saved into the EEPROM. With these technologies, the disadvantages of the Pentium basedjumper-lessdesign are eliminated. There will be no worry of wrong CPU voltage detection and no need tore-openthe housing if the CMOS battery is lost.

The CPU frequency selection is set by going into:

BOIS Setup à Chipset Features Setupà CPU Clock Frequency

(The possible setting is 66.8, 68.5, 75, 83.3, 100, 103, 112, 117, 124, 129, 133.3, 138, 143, 148 and 153 MHz)

BOIS Setup à Chipset Features Setupà CPU Clock Ratio

(The possible setting is 1.5x, 2x, 2.5x, 3x, 3.5x, 4x, 4.5x, 5x, 5.5x, 6x, 6.5x, 7x, 7.5x, and 8x)

Core frequency = Ratio * External bus clock

INTEL Pentium II

CPU Core Frequency

Ratio

External Bus Clock

Pentium II - 233

233MHz =

3.5x

66MHz

 

 

 

 

Pentium II - 266

266MHz =

4x

66MHz

 

 

 

 

Pentium II - 300

300MHz =

4.5x

66MHz

Pentium II - 333

333MHz =

5x

66MHz

 

 

 

 

Pentium II - 350

350MHz =

3.5x

100MHz

 

 

 

 

Pentium II - 400

400MHz =

4x

100MHz

 

 

 

 

Pentium II - 450

450MHz =

4.5x

100MHz

 

 

 

 

Pentium III - 450

450MHz =

4.5x

100MHz

 

 

 

 

Pentium III - 500

500MHz =

5x

100MHz

 

 

 

 

Pentium III - 550

550MHz =

5.5x

100MHz

 

 

 

 

Celeron 266

266MHz =

4x

66MHz

 

 

 

 

Celeron 300

300MHz =

4.5x

66MHz

 

 

 

 

Celeron 300A

300MHz =

4.5x

66MHz

 

 

 

 

2-4

Hardware Installation

INTEL Pentium II

CPU Core Frequency

Ratio

External Bus Clock

 

 

 

 

Celeron 333

333MHz =

5x

66MHz

 

 

 

 

Celeron 366

366MHz =

5.5x

66MHz

 

 

 

 

Celeron 400

400MHz =

6x

66MHz

 

 

 

 

Celeron 433

433MHz =

6.5x

66MHz

 

 

 

 

Celeron 466

466MHz =

7x

66MHz

 

 

 

 

Warning: The INTEL 440ZX chipset supports a maximum of

100MHz FSB clock, the higher clock settings are for internal test only. These settings exceed the specification of the ZX chipset, which may cause serious system damage.

2.2.2 Setting the CPU Voltage

This motherboard supports Pentium II / Pentium III / Celeron VID function, the CPU core voltage is automatically detected, the range is from 1.3V to 3.5V.

For overclocking, the CPU voltage also can be adjusted in the BIOS Setup. The CPU voltage is adjustable by going into:

Chipset Features à CPU Voltage Set to

However, note that enlarging the core voltage is probably harmful to your CPU.

2.2.3 Clearing the CMOS

JP14 Clear CMOS

1-2Normal operation (default)

2-3Clear CMOS

You need to clear the CMOS if you forget your system password. To clear the CMOS, follow the procedure below:

JP14

 

JP14

1

2

3

1 2 3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Normal Operation

Clear CMOS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(default)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2-5

Hardware Installation

The procedure to clear CMOS:

1.Turn off the system and unplug the AC power.

2.Remove ATX power cable from connector PWR2.

3.Locate JP14 and short pins2-3for a few seconds.

4.Return JP14 to its normal setting by shorting pins1-2.

5.Connect ATX power cable back to connector PWR2.

6.Turn on the system power.

7.Press during bootup to enter the BIOS Setup Utility and specify a new password, if needed.

Tip: If your system hangs or fails to boot because of overclocking, please clear the CMOS and the system will go back to its default setting (233MHz).

Tip: If your system hangs or fails to boot because of overclocking, simply use the <Home> key to restore the default setting (233MHz). By this smart design, it would be more convenient to clear CPU frequency setting. For using this function, you just need to press the <Home> key first and then press the Power button at the same time. Note: do not release the <Home> key until the POST screen appears.

2-6

Hardware Installation

2.2.4 AGP Ratio

JP23 AGP Ratio

1-2Auto (default)

3-42/3

5-61/1

To improve system performance, AX6BC Pro has implemented this jumper for AGP to synchronize the CPU 100Mhz (or above) external frequency. We recommend choosing a better AGP card for overclocking. Some AGP cards can not take 100MHz bus frequency and may cause overclocking failure.

JP23

JP23

JP23

2

4 6

2

4 6

2

4

6

1

3 5

1

3 5

1

3

5

Auto

 

2/3

 

1/1

(Default)

 

 

 

 

 

 

 

There is a "66/100" signal pin from CPU for ZX chipset to automatically identify AGP clock, this is important for jumperless design. When a 66MHz Pentium II CPU is used, the north bridge will synchronize the CPU external frequency and the AGP bus frequency. Therefore, when you set the CPU external frequency to

100MHz, the AGP bus will also runs at 100MHz.

With 100MHz Pentium II CPU, the north bridge automatically set AGP frequency to 2/3 AGP frequency. In other words, the AGP card will still runs at 66MHz while the CPU is running at 100MHz external frequency.

Except Auto setting, you may also set this jumper to 2/3 or 1/1. Below is a table for better understanding:

CPU Type

66/100 signal

Bus clock

AGP clock

JP23

66MHz

Low

66MHz

66MHz

1-2

66MHz

Low

100MHz

100MHz

1-2

66MHz

Low

100MHz

66MHz

3-4

100MHz

High

100MHz

66MHz

1-2

100MHz

High

100MHz

66MHz

3-4

100MHz

High

100MHz

100MHz

5-6

100MHz

High

133MHz

88.6MHz

1-2

100MHz

High

133MHz

88.6MHz

3-4

100MHz

High

133MHz

133MHz

5-6

Warning: The specification of AGP is maximum 66Mhz clock. If the bus clock is larger than 66MHz, setting this

2-7

Hardware Installation

item to Enabled may cause serious system damage.

2.2.5 KB/MS WKUP

JP28 KB/MS WKUP

1-2Disabled

2-3Enabled

This jumper is used to enable or disable the Keyboard/Mouse Power ON function. If you select Enabled, you may choose the wakeup mode from the BIOS Setup. To implement this function, the 5V Stand By current must be greater than 800mA.

Note that only PS/2 mouse supports the Wake On Mouse function.

JP28

JP28

1

1

2

2

3

3

Disabled

Enabled

2-8

Hardware Installation

2.3 Connectors

2.3.1 Power Cable

The ATX power supply uses a 20-pinconnector as shown below. Make sure you plug in the cable in the right direction.

Caution: Make sure that the power supply is off before connecting or disconnecting the power cable.

3.3V

+5V

5V SB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3.3V

 

+5V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PWR2

2.3.2 Fan

Plug in the fan cable to the 3-pinfan connector onboard. The fan connector is markedCPUFAN1 andFAN1 on the system board.

GND

+12V

SENSE

CPUFAN1

FAN1

Note: Attach the fan cable to either the CPU FAN connector or the FAN connector. Both of these two fan connectors can support the hardware monitoring function. However, you can only use the CPU FAN connector to control the fan power ON/OFF.

2-9

Hardware Installation

2.3.3 PS/2 Mouse

The onboard PS/2 mouse connector is a 6-pinMini-Dinconnector markedPS2. The view angle of drawing shown here is from the back panel of the housing.

PCB

PS/2 Mouse

2.3.4 Keyboard

The onboard PS/2 keyboard connector is a 6-pinMini-Dinconnector markedKB2. The view angle of drawing shown here is from the back panel of the housing.

PCB

PS/2 KB

2.3.5 Serial Devices (COM1/COM2)

The onboard serial connectors are 9-pinD-typeconnectors on the back panel of motherboard. The serial port 1 connector is marked asCOM1 and the serial port 2 connector is marked asCOM2.

PCB

COM1 COM2

2-10