AOpen AP65-2-HW User Manual

Chapter 2

Hardware Installation

This chapter gives you a step-by-step procedure on how to install your system.
Follow each section accordingly.

2.1 ESD Precautions

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.

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Hardware Installation

2.2 Jumper and Connector Locations

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

CN1: COM1 connector CN16: Multifunction connector
CN2: Power connector CN17: HDD LED connector
CN3: IR connector JP1: CMOS setting jumper
CN6: COM2 connector JP2: CPU frequency select jumper
CN7: Parallel port connector JP3: PS/2 mouse select jumper
CN8: Floppy disk drive connector JP4: I/O DMA channel select

jumper

CN9: IDE1 connector JP5: I/O DMA channel select

jumper
CN10: PS/2 mouse connector JP6: I/O controller jumper
CN11: USB connector (optional) JP7: CPU type select jumper
CN12: IDE2 connector JP8: CPU voltage select jumper
CN13: CPU frequency select jumper JP9: Reserved jumper
CN14: CPU frequency select jumper JP10: Two-pin fan connector
CN15: Keyboard clock jumper

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2.3 Setting the Jumper

Set a jumper switch as follows:

• To opena jumper, remove the

jumper cap.

Hardware Installation

• To close a jumper, insert the

plastic jumper cap over two pins of

a jumper.
The conventions in the figure are used
to represent the proper jumper settings.

Open

Closed (1-2)

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Hardware Installation

2.4 Installing a Microprocessor

The motherboard comes with a zero-insertion force microprocessor socket
that allows you to install a CPU without using any tool.
Follow these steps to install a CPU into a ZIF-type CPU socket:

Make sure that the system power is OFF before
installing a component.

1. Locate the CPU socket on the

system board and pull up the

socket lever.

2. Align pin 1 of the CPU with hole 1

of the socket. The dot on the CPU

indicates pin 1. The topmost label

indicates the CPU frequency and

the cache size.

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Hole 1 CPU frequency

Cache
size
supported

Pin 1 indicator

3. Gently insert the CPU into the

socket.

4. Pull down the socket lever to lock

the CPU into the socket.

Hardware Installation

5. Attach the heatsink and fan to the CPU.

With four-pin fan connector

With two-pin fan connector

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Hardware Installation

6. Plug the fan cable onto the two-pin

fan connector onboard. The fan

connector is marked JP10 on the

system board. If your fan cable has

four pins, plug it onto the power

connector.

7. Set jumper JP7 according to the

CPU type currently installed on

your board.

8. Set jumpers JP2, CN13 and CN14

according to the frequency

supported by the CPU currently

installed on your board.

+12V

2-pin fan power connector (J2)

CPU TYPE SELECT

JP7

Standard CPU

OverDrive CPU

CPU VOLTAGE

JP2 CN13 CN14

150 MHz
166 MHz
180 MHz

200 MHz

GND

GND

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Hardware Installation

9. Set jumper JP8 according to the voltage supported by the CPU currently

installed on your board.

Voltage JP8 Voltage JP8

3.5V

3.4V

3.3V

3.2V

3.1V

3.0V

2.9V

2.8V

2.7V

2.6V

2.5V

2.4V

2.3V

2.2V

2.1V

By default, JP8 is set to OPEN to enable the
CPU voltage auto-detect function.

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Hardware Installation

2.5 Upgrading the Microprocessor

To upgrade a CPU:

1. Turn off the system power and remove the housing cover.

2. Locate the CPU socket on the system board.

3. Pull up the socket lever.

4. Remove the installed CPU, if any.

5. Install the upgrade CPU. Refer to section 2.4 for instructions on how to

install a CPU.

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