AOpen AX5T-HW User Manual

Size:
222.67 Kb
Download

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 location of the jumpers and connectors on the mainboard.

 

 

 

 

 

 

 

 

COM2

PRINTER

 

KB

 

MS

COM1

I

I

I

I

 

 

 

 

 

 

 

 

 

 

 

 

S

S

S

S

P

P

P

P

 

 

 

 

 

 

 

 

A

A

A

A

 

 

S

S

S

S

D

D

C

C

C

C

 

 

4

3

2

1

 

 

I

I

I

I

I

I

 

 

 

 

I

I

I

I

USB

 

M M M M

M

M

 

 

 

 

4

3

2

1

 

M M M M

M

M

 

 

 

 

 

 

 

 

 

 

1

2

3

4

1

2

 

 

 

 

 

 

 

 

 

TXC

 

 

 

 

 

 

 

 

 

 

 

 

WKUP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PIIX4

 

 

 

 

 

JP6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

JP5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

JP4

 

 

 

 

 

 

 

JP14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

JP11

 

 

 

 

 

 

 

 

 

 

 

 

BIOS

 

 

 

 

 

 

 

 

 

 

 

 

 

HDD LED

 

 

 

 

IDE2

 

FAN2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SPWR

 

 

 

 

 

 

 

 

IrDA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IDE1

 

FAN1

JP3 JP2 JP1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PANEL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FDC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Jumpers:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

JP1,JP2,JP3:

CPU frequency ratio

JP4,JP5,JP6:

CPU external (bus) clock

JP11:

CPU core voltage setting (Vcore)

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

FAN1:

CPU fan connector (2-pinnormal type)

FAN2:

CPU fan connector (3-pintype for fan monitoring function)

WKUP:

IR & MODEM wake-upconnector

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 1-2

Jumper set at 2-3

 

 

2-4

Hardware Installation

2.2.1 Setting the CPU Voltage

JP11 CPU Core Voltage (Vcore)

1-23.45V (Intel P54C)

3-43.52V (Cyrix or AMD K5)

5-62.9V (AMDK6-166/200or Cyrix M2)7-82.8V (MMX P55C)

9-103.2V (AMDK6-233)

11-122.5V/2.2V/2.0V (Reserved)

JP11 is used to select CPU core voltage (Vcore), normally it is set to default 3.45V for INTEL Pentium P54C. It must be changed if you have CPU with different core voltage, such as INTEL PP/MT MMX (P55C), AMD K5/K6 and Cyrix 6x86, refer to the CPU specification for more details.

JP11

JP11

JP11

JP11

JP11

1

2

1

2

1

2

1

2

1

2

3

4

3

4

3

4

3

4

3

4

5

6

5

6

5

6

5

6

5

6

7

8

7

8

7

8

7

8

7

8

9

10

9

10

9

10

9

10

9

10

11

12

11

12

11

12

11

12

11

12

3.45V

3.52V

2.9V

2.8V

3.2V

P54C

6x86 or

K6-166

MMX

K6-233

 

 

 

K5

K6-200

P55C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

M2

 

 

 

 

Warning: Please make sure that you have installed CPU fan properly if IntelPP/MT-233or AMDK6-200/233is being selected to use. It may cause your system unstable if you can not meet the heat dissipation requirement from above CPU type. It is recommended to adopt larger fan on these CPU for better air flow in the system.

Tip: Normally, for single voltage CPU, Vcpuio (CPU I/O Voltage) is equal to Vcore, but for CPU that needs dual voltage such as PP/MT (P55C) or Cyrix 6x86L, Vcpuio is different from Vcore and must be set to Vio (PBSRAM and Chipset Voltage). The single or dual voltage CPU is automatically detected by hardware circuit.

Tip: JP11 pin11-12is reserved for future CPU, the most possible value is 2.0V. It is not yet decided when this manual is printed. Use voltage meter or check your distributor before you use pin11-12.

2-5

Hardware Installation

CPU

Type

JP11

Vcore

Vio

Vcpuio

 

 

 

 

 

 

INTEL P54C

Single Voltage

1-2

3.45V

3.45V

Vcore

 

 

 

 

 

 

INTEL MMX P55C

Dual Voltage

7-8

2.8V

3.45V

Vio

 

 

 

 

 

 

AMD K5

Single Voltage

3-4

3.52V

3.45V

Vcore

 

 

 

 

 

 

AMD K6-166/200

Dual Voltage

5-6

2.9V

3.45V

Vio

 

 

 

 

 

 

AMD K6-233

Dual Voltage

9-10

3.2V

3.45V

Vio

 

 

 

 

 

 

Cyrix 6x86

Single Voltage

3-4

3.52V

3.45V

Vcore

 

 

 

 

 

 

Cyrix 6x86L

Dual Voltage

7-8

2.8V

3.45V

Vio

 

 

 

 

 

 

Cyrix M2

Dual Voltage

5-6

2.9V

3.45V

Vio

 

 

 

 

 

 

Caution: Above table is 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.

2.2.2 Selecting the CPU Frequency

JP3

JP2

JP1

CPU Frequency

 

 

 

Ratio

1-2

1-2

1-2

1.5x

(3.5x)

1-2

1-2

2-3

2x

 

1-2

2-3

2-3

2.5x

(1.75x)

1-2

2-3

1-2

3x

 

2-3

1-2

2-3

4x

 

2-3

2-3

2-3

4.5x

 

2-3

2-3

1-2

5x

 

2-3

1-2

1-2

5.5x

 

 

 

 

 

 

Intel Pentium, Cyrix 6x86 and AMD K5/K6 CPU are designed to have different Internal (Core) and External (Bus) frequency. The ratio of Core/Bus frequency is selected by JP1, JP2, which CPU is using to multiply external clock and produce internal frequency. Note thatJP3 is reserved for future CPU.

Note: JP3 is reserved for future CPU. It is NC pin (no connection) for current CPU on the market. It should be no harm to connect to1-2or2-3.If you find any unstable problem, please try to remove the jumper cap, and leave it Open.

Note: Intel PP/MT MMX 233MHz is using 1.5x jumper setting for 3.5x frequency ratio, and AMD PR166 is using 2.5x setting for 1.75x frequency ratio.

2-6

Hardware Installation

Core frequency = Ratio * External bus clock

JP3 & JP2 & JP1

JP3 & JP2 & JP1

1

1

2

2

3

3

1.5x (3.5x)

2x

JP3 & JP2 & JP1

JP3 & JP2 & JP1

1

1

2

2

3

3

2.5x (1.75x)

3x

JP3 & JP2 & JP1

JP3 & JP2 & JP1

1

1

2

2

3

3

4x

4.5x

JP3 & JP2 & JP1

JP3 & JP2 & JP1

1

1

2

2

3

3

 

 

 

5x

 

 

 

 

JP4

JP5

JP6

CPU External Clock

1-2

2-3

1-2

60MHz

2-3

2-3

1-2

66MHz

2-3

1-2

1-2

75MHz

1-2

1-2

2-3

83.3MHz

 

 

 

 

5.5x

JP4, JP5 and JP6are the selections of CPU external clock (bus clock), which is actually the clock from clock generator.

2-7

Hardware Installation

JP4 & JP5 & JP6

JP4 & JP5 & JP6

JP6 JP5JP4

1 2 3

60MHz

JP4 & JP5 & JP6

JP6 JP5JP4

1 2 3

66MHz

JP4 & JP5 & JP6

JP6 JP5JP4

1 2 3

JP6 JP5JP4

1 2 3

75MHz

83.3Mz

Warning: INTEL TX chipset supports only 60/66MHz external CPU bus clock, the 75/83.3

MHz settings are for internal test only, set to 75/83.3MHz exceeds the specification of TX chipset, which may cause serious system damage.

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.

Warning: Cyrix 6x86 P200+ uses 75MHz external clock, the jumper setting shown on the table below is for user's convenient. It may cause serious system damage to use 75MHz clock.

INTEL

CPU Core

Ratio

External

JP1 & JP2 & JP3

JP4 & JP5 & JP6

Pentium

Frequency

 

Bus Clock

 

 

 

 

 

 

 

 

P54C 90

90MHz =

1.5x

60MHz

1-2&1-2&1-2

1-2&2-3&1-2

 

 

 

 

 

 

P54C 100

100MHz =

1.5x

66MHz

1-2&1-2&1-2

2-3&2-3&1-2

 

 

 

 

 

 

P54C 120

120MHz =

2x

60MHz

2-3&1-2&1-2

1-2&2-3&1-2

 

 

 

 

 

 

P54C 133

133MHz =

2x

66MHz

2-3&1-2&1-2

2-3&2-3&1-2

 

 

 

 

 

 

P54C 150

150MHz =

2.5x

60MHz

2-3&2-3&1-2

1-2&2-3&1-2

 

 

 

 

 

 

P54C 166

166MHz =

2.5x

66MHz

2-3&2-3&1-2

2-3&2-3&1-2

 

 

 

 

 

 

P54C 200

200MHz =

3x

66MHz

1-2&2-3&1-2

2-3&2-3&1-2

 

 

 

 

 

 

2-8

Hardware Installation

INTEL

CPU Core

Ratio

External

JP1 & JP2 & JP3

JP4 & JP5 & JP6

Pentium

Frequency

 

Bus Clock

 

 

MMX

 

 

 

 

 

 

 

 

 

 

 

PP/MT 150

150MHz =

2.5x

60MHz

2-3&2-3&1-2

1-2&2-3&1-2

 

 

 

 

 

 

PP/MT 166

166MHz =

2.5x

66MHz

2-3&2-3&1-2

2-3&2-3&1-2

 

 

 

 

 

 

PP/MT 200

200MHz =

3x

66MHz

1-2&2-3&1-2

2-3&2-3&1-2

 

 

 

 

 

 

PP/MT 233

233MHz =

3.5x

66MHz

1-2&1-2&1-2

2-3&2-3&1-2

 

 

 

 

 

 

Cyrix 6x86

CPU Core

Ratio

External

JP1 & JP2 & JP3

JP4 & JP5 & JP6

& 6x86L

Frequency

 

Bus Clock

 

 

 

 

 

 

 

 

P150+

120MHz =

2x

60MHz

2-3&1-2&1-2

1-2&2-3&1-2

 

 

 

 

 

 

P166+

133MHz =

2x

66MHz

2-3&1-2&1-2

2-3&2-3&1-2

 

 

 

 

 

 

P200+

150MHz =

2x

75MHz

2-3&1-2&1-2

2-3&1-2&1-2

Cyrix M2

CPU Core

Ratio

External

JP1 & JP2 & JP3

JP4 & JP5 & JP6

 

Frequency

 

Bus Clock

 

 

 

 

 

 

 

 

MX-PR166

150MHz =

2.5x

60MHz

2-3&2-3&1-2

1-2&2-3&1-2

 

 

 

 

 

 

MX-PR200

166MHz =

2.5x

66MHz

2-3&2-3&1-2

2-3&2-3&1-2

 

 

 

 

 

 

MX-PR233

200MHz =

3x

66MHz

1-2&2-3&1-2

2-3&2-3&1-2

 

 

 

 

 

 

MX-PR266

233MHz =

3.5x

66MHz

1-2&1-2&1-2

2-3&2-3&1-2

 

 

 

 

 

 

AMD K5

CPU Core

Ratio

External

JP1 & JP2 & JP3

JP4 & JP5 & JP6

 

Frequency

 

Bus Clock

 

 

 

 

 

 

 

 

PR90

90MHz =

1.5x

60MHz

1-2&1-2&1-2

1-2&2-3&1-2

 

 

 

 

 

 

PR100

100MHz =

1.5x

66MHz

1-2&1-2&1-2

2-3&2-3&1-2

 

 

 

 

 

 

PR120

90MHz =

1.5x

60MHz

1-2&1-2&1-2

1-2&2-3&1-2

 

 

 

 

 

 

PR133

100MHz =

1.5x

66MHz

1-2&1-2&1-2

2-3&2-3&1-2

 

 

 

 

 

 

PR166

116MHz =

1.75x

66MHz

2-3&2-3&1-2

2-3&2-3&1-2

 

 

 

 

 

 

AMD K6

CPU Core

Ratio

External

JP1 & JP2 & JP3

JP4 & JP5 & JP6

 

Frequency

 

Bus Clock

 

 

PR2-166

166MHz =

2.5x

66MHz

2-3&2-3&1-2

2-3&2-3&1-2

 

 

 

 

 

 

PR2-200

200MHz =

3x

66MHz

1-2&2-3&1-2

2-3&2-3&1-2

 

 

 

 

 

 

PR2-233

233MHz =

3.5x

66MHz

1-2&1-2&1-2

2-3&2-3&1-2

 

 

 

 

 

 

2-9

Hardware Installation

Note: Cyrix 6x86, M2 and AMD K5 CPU useP-ratingfor the reference of CPU benchmark compared with INTEL P54C, their internal core frequency is not exactly equal toP-ratingmarked on the CPU. For example, Cyrix P166+ is 133MHz but performance is almost equal to P54C 166MHz and AMD PR133 is 100MHz but performance is almost equal to INTEL P54C 133MHz.

Note: INTEL TX chipset does not support CPU with 50/55MHz external bus clock, so that INTEL P54C 75MHz, Cyrix

P120+,P133+ and AMD PR75 are not supported by this mainboard.

2-10