AOpen AX6F-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

2.1Jumper and Connector Locations

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

 

 

 

 

 

 

 

 

COM2

PRINTER

KB

MS

COM1

I

I

I

 

 

 

 

 

 

 

 

 

 

S

S

S

P

P

P

P

P

 

 

 

S IMM1

 

A

A

A

C

C

C

C

C

 

 

 

S IMM2

 

3

2

1

I

I

I

I

I

 

 

 

S IMM3

 

 

 

 

5

4

3

2

1

 

 

 

 

 

 

 

USB

 

 

SIMM4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FAN

 

 

 

 

 

 

 

 

 

 

JP5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PWR2

 

 

 

 

 

 

 

 

 

CPU SLOT 1

 

 

 

 

 

 

 

BIOS

 

JP6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

JP3 JP2 JP1

 

 

 

 

IrDA

 

JP14

 

 

 

SPWR

 

 

 

 

 

 

PANEL

 

 

 

 

 

 

IDE1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HDD LED

 

 

FDC

 

 

IDE2

 

 

 

 

Jumpers:

 

 

 

 

 

 

 

 

 

JP1,JP2,JP3: CPU frequency ratio

JP5:

CPU bus clock (chipset)

JP6:

CPU bus clock (clock generator)

JP14:

Clear CMOS

2-2

Hardware Installation

Connectors:

 

PS2 MS:

PS/2 mouse connector

KB2:

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

FAN:

CPU fan connector

IrDA:

IrDA (Infrared) connector

HDD LED:

HDD LED connector

PANEL:

Front panel (Multifunction) connector

2-3

Hardware Installation

2.2Jumpers

Jumpers are made by pin headers and plastic connecting caps for the purpose of customizing your hardware. Doing so requires basic knowledge of computer hardware, be sure you understand the meaning of the jumpers before you change any setting. The onboard jumpers are normally set to their default with optimized settings.

On the mainboard, normally there is a bold line marked beside pin 1 of the jumper, sometimes, there are numbers also. If we connect (short) plastic cap to pin 1 and 2, we will say set it at 1-2,and when we say jumper is open, that means no plastic cap connected to jumper pins.

1

1

1

1

2

2

2

2

 

 

3

3

Open

Short

Jumper set at 1-

Jumper set at 2-3

 

 

 

 

2

 

2-4

Hardware Installation

2.2.1 Selecting the CPU Frequency

JP1

JP2

JP3

CPU Frequency Ratio

2-3

1-2

2-3

1.5x

1-2

1-2

1-2

2x

1-2

1-2

2-3

2.5x

1-2

2-3

1-2

3x

1-2

2-3

2-3

3.5x

2-3

1-2

1-2

4x

2-3

1-2

2-3

4.5x

2-3

2-3

1-2

5x

2-3

2-3

2-3

5.5x

1-2

1-2

1-2

6x

1-2

1-2

2-3

6.5x

1-2

2-3

1-2

7x

1-2

2-3

2-3

7.5x

2-3

1-2

1-2

8x

Intel Pentium II (Klamath) is designed to have different Internal (Core) and External (Bus) frequency. The ratio of Core/Bus frequency is selected by

JP1, JP2 and JP3, which CPU is using to multiply external clock and produce internal frequency.

Core frequency = Ratio * External bus clock

JP3 & JP2 & JP1

JP3 & JP2 & JP1

1

1

2

2

3

3

3x

3.5x

JP3 & JP2 & JP1

JP3 & JP2 & JP1

1

1

2

2

3

3

JP6

JP5

CPU External Clock

1-2

1-2

66MHz (default)

2-3

2-3

60MHz

 

 

 

4x

4.5x

JP6 andJP5 are selection of CPU external clock (bus clock).JP6 is actually the selection of clock from clock generator andJP5 is used to inform chipset the CPU bus clock.

2-5

Hardware Installation

JP5

JP6

JP6 & JP5

JP6 & JP5

 

1

 

1

 

2

 

2

1 2 3

3

1 2 3

3

66MHz

 

60MHz

 

(default)

 

 

 

Caution: Following table are possible settings of current CPU available on the market. The correct setting may vary because of new CPU product, refer to your CPU specification for more details.

INTEL

CPU Core

Ratio

External

JP3 & JP2 & JP1

JP6 & JP5

Pentium II

Frequency

 

Bus Clock

 

 

Klamath 200

200MHz =

3x

66MHz

1-2&2-3&1-2

1-2&1-2

Klamath 233

233MHz =

3.5x

66MHz

2-3&2-3&1-2

1-2&1-2

Klamath 266

266MHz =

4x

66MHz

1-2&1-2&2-3

1-2&1-2

2.2.2 Setting the CPU Voltage

JP7~JP11

 

 

 

CPU Core Voltage

Open

 

 

 

CPU voltage auto-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

detection (default)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

JP7~JP11 is reserved for test only and will be removed after mass production. This mainboard supports Pentium II (Klamath) VID function, the CPU core voltage is automatic detected, the range is from 1.3V to 3.5V.

JP11,JP10,JP9,JP8,JP7

1

2

3

Open for Auto-detection

2-6

Hardware Installation

2.2.3 Clearing the CMOS

JP14

Clear CMOS

1-2

Normal operation

 

(default)

2-3

Clear CMOS

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

JP14

JP14

1

1

2

2

3

3

Normal Operation

Clear CMOS

(default)

 

The procedure to clear CMOS:

1.Turn off the system 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.

2-7

Hardware Installation

2.3Connectors

2.3.1 Power Cable

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

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

5V SB

+5V

 

+5V

 

 

 

 

 

 

 

3.3V

3.3V

 

 

 

 

 

 

 

PWR2

2.3.2 ATX Soft-PowerSwitch Connector

The ATX soft-powerswitch connector is a2-pinheader on the system board. Locate the power switch cable from your ATX housing. It is2-pinfemale connector from the housing front panel. Plug this connector to thesoft-powerswitch connector markedSPWR.

1

2

SPWR

2-8

Hardware Installation

2.3.3 CPU Fan

Plug in the fan cable to the two-pinfan connector onboard. The fan connector is markedFAN on the system board.

GND

+12V

SENSE

FAN

2.3.4 PS/2 Mouse

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

PCB

PS/2 Mouse

2.3.5Keyboard

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

2-9

Hardware Installation

PCB

PS/2 KB

2.3.6 Serial Devices (COM1/COM2)

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

COM1

 

PCB

 

COM2

 

COM1

COM2

2.3.7 Printer

The onboard printer connector is a 25-pinD-typeconnector markedPRINTER . The view angle of drawing shown here is from back panel of the housing.

PCB

PRINTER

2-10