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ASRock AD2550-ITX: 2. Installation

2. Installation: ASRock AD2550-ITX

2. Installation

This is a Mini-ITX form factor (6.7" x 6.7", 17.0 x 17.0 cm) motherboard. Before you

install the motherboard, study the conguration of your chassis to ensure that the

motherboard ts into it.

Make sure to unplug the power cord before installing or removing the

motherboard. Failure to do so may cause physical injuries to you and

damages to motherboard components.

2.1 Screw Holes

Place screws into the holes indicated by circles to secure the motherboard to the

chassis.

Do not over-tighten the screws! Doing so may damage the motherboard.

2.2 Pre-installation Precautions

Take note of the following precautions before you install motherboard components

or change any motherboard settings.

1. Unplug the power cord from the wall socket before touching any component.

2. To avoid damaging the motherboard components due to static electricity,

NEVER place your motherboard directly on the carpet or the like. Also

remember to use a grounded wrist strap or touch a safety grounded object

before you handle components.

3. Hold components by the edges and do not touch the ICs.

4. Whenever you uninstall any component, place it on a grounded antistatic pad or

in the bag that comes with the component.

Before you install or remove any component, ensure that the power is

switched off or the power cord is detached from the power supply.

Failure to do so may cause severe damage to the motherboard, peripherals,

and/or components.

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ASRock AD2550-ITX Motherboard

2.3 Installation of Memory Modules (SO-DIMM)

AD2550-ITX motherboard provides two 204-pin DDR3 (Double Data Rate 3) SO-

DIMM slots.

1. It is not allowed to install a DDR or DDR2 memory module into DDR3

slot; otherwise, this motherboard and SO-DIMM may be damaged.

2. Please install the memory module from DDR3_A2 slot for the rst

priority.

Installing a SO-DIMM

Please make sure to disconnect power supply before adding or

removing SO-DIMMs or the system components.

Step 1. Unlock a SO-DIMM slot by pressing the retaining clips outward.

Step 2. Align a SO-DIMM on the slot such that the notch on the SO-DIMM

matches the break on the slot.

notch

break

notch

break

The SO-DIMM only ts in one correct orientation. It will cause perma-

nent damage to the motherboard and the SO-DIMM if you force the SO-

DIMM into the slot at incorrect orientation.

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Step 3. Firmly insert the SO-DIMM into the slot until the retaining clips at both

ends fully snap back in place and the SO-DIMM is properly seated.

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ASRock AD2550-ITX Motherboard

2.4 Expansion Slot (PCI Slot)

There is 1 PCI slot on this motherboard.

PCI slot: The PCI slot is used to install expansion card that has the 32-bit PCI

interface.

Installing an expansion card

Step 1. Before installing the expansion card, please make sure that the power

supply is switched off or the power cord is unplugged. Please read the

documentation of the expansion card and make necessary hardware

settings for the card before you start the installation.

Step 2. Remove the system unit cover (if your motherboard is already installed

in a chassis).

Step 3. Remove the bracket facing the slot that you intend to use. Keep the

screws for later use.

Step 4. Align the card connector with the slot and press rmly until the card is

completely seated on the slot.

Step 5. Fasten the card to the chassis with screws.

Step 6. Replace the system cover.

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ASRock AD2550-ITX Motherboard

2.5 Pin Header Easy Installation Guide

ASRock motherboard is equipped with pin headers with obvious colors which indi-

cate you to recognize the crucial headers more easily. Please refer to below illustra-

tions for the pin denition of onboard headers. If you want to have more information

about the usage of these headers, please refer to “Jumpers Setup“ and “Onboard

Headers and Connectors“ for details.

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ASRock AD2550-ITX Motherboard

PLED+

PLED-

PWRBTN#

GND

1

DUMMY

REST#

GND

HDLED-

HDLED+

1

SPEAKER

DUMMY

DUMMY

+5V

GND

PRESENCE#

MIC_RET

OUT_RET

1

OUT2_L

J_SENSE

OUT2_R

MIC2_R

MIC2_L

USB_PWR

P-

P+

GND

DUMMY

1

GND

P+

P-

USB_PWR

USB 2.0 Header

System Panel Header

Chassis Speaker Header

Front Panel Audio Header

2.6 Jumpers Setup

The illustration shows how jumpers are

setup. When the jumper cap is placed on

pins, the jumper is “Short”. If no jumper cap

is placed on pins, the jumper is “Open”. The

illustration shows a 3-pin jumper whose

pin1 and pin2 are “Short” when jumper cap

is placed on these 2 pins.

Jumper Setting Description

Clear CMOS

(CLRCMOS1, 2-pin jumper)

(see p.2 No. 13)

2-pin jumper

Note: CLRCMOS1 allows you to clear the data in CMOS. The data in CMOS in-

cludes system setup information such as system password, date, time, and

system setup parameters. To clear and reset the system parameters to de-

fault setup, please turn off the computer and unplug the power cord from the

power supply. After waiting for 15 seconds, use a jumper cap to short 2 pins

on CLRCMOS1 for 5 seconds.

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ASRock AD2550-ITX Motherboard

2.7 Onboard Headers and Connectors

Onboard headers and connectors are NOT jumpers. Do NOT place

jumper caps over these headers and connectors. Placing jumper caps

over the headers and connectors will cause permanent damage of the

motherboard!

Serial ATA2 Connectors These two Serial ATA2 (SATA2)

(SATAII_1: see p.2, No. 16)

connectors support SATA data

(SATAII_2: see p.2, No. 8)

cables for internal storage

devices. The current SATA2

SATAII_1

SATAII_2

interface allows up to 3.0 Gb/s

data transfer rate.

Serial ATA (SATA) Either end of the SATA data

Data Cable cable can be connected to the

(Optional)

SATA / SATA2 hard disk or the

SATA2 connector on this

motherboard.

USB 2.0 Headers Besides the default USB 2.0

(9-pin USB6_7)

ports on the I/O panel, there

(see p.2 No. 15)

are two USB 2.0 headers on

this motherboard. Each

USB 2.0 header can support

two USB 2.0 ports.

U SB_PWR

(9-pin USB8_9)

P-9

P +9

(see p.2 No. 9)

GND

DUMMY

1

GND

P +8

P-8

U SB_PWR

Consumer Infrared Module Header This header can be used to

(4-pin CIR1)

connect the remote controller

(see p.2 No. 12)

receiver.

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ASRock AD2550-ITX Motherboard

Infrared Module Header This header supports an

(5-pin IR1)

optional wireless transmitting

(see p.2 No. 10)

and receiving infrared module.

Front Panel Audio Header This is an interface for front

GND

P RESENCE#

M IC_RET

(9-pin HD_AUDIO1)

panel audio cable that allows

OUT_RET

(see p.2 No. 19)

convenient connection and

1

control of audio devices.

O UT2_L

J _SENSE

O UT2_R

M IC2_R

M IC2_L

1. High Denition Audio supports Jack Sensing, but the panel wire on

the chassis must support HDA to function correctly. Please follow the

instruction in our manual and chassis manual to install your system.

2. If you use AC’97 audio panel, please install it to the front panel audio

header as below:

A. Connect Mic_IN (MIC) to MIC2_L.

B. Connect Audio_R (RIN) to OUT2_R and Audio_L (LIN) to OUT2_L.

C. Connect Ground (GND) to Ground (GND).

D. MIC_RET and OUT_RET are for HD audio panel only. You don’t

need to connect them for AC’97 audio panel.

E. To activate the front mic.

Go to the "FrontMic" Tab in the Realtek Control panel. Adjust

“Recording Volume”.

System Panel Header This header accommodates

(9-pin PANEL1)

several system front panel

(see p.2 No. 11)

functions.

Connect the power switch, reset switch and system status indicator on the

chassis to this header according to the pin assignments below. Note the

positive and negative pins before connecting the cables.

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PWRBTN (Power Switch):

Connect to the power switch on the chassis front panel. You may congure

the way to turn off your system using the power switch.

RESET (Reset Switch):

Connect to the reset switch on the chassis front panel. Press the reset

switch to restart the computer if the computer freezes and fails to perform a

normal restart.

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ASRock AD2550-ITX Motherboard

IRTX

+5VSB

DUMMY

1

GND

IRRX

PLED (System Power LED):

Connect to the power status indicator on the chassis front panel. The LED

is on when the system is operating. The LED keeps blinking when the sys-

tem is in S1 sleep state. The LED is off when the system is in S3/S4 sleep

state or powered off (S5).

HDLED (Hard Drive Activity LED):

Connect to the hard drive activity LED on the chassis front panel. The LED

is on when the hard drive is reading or writing data.

The front panel design may differ by chassis. A front panel module mainly

consists of power switch, reset switch, power LED, hard drive activity LED,

speaker and etc. When connecting your chassis front panel module to this

header, make sure the wire assignments and the pin assign-ments are

matched correctly.

Chassis Speaker Header Please connect the chassis

(4-pin SPEAKER 1)

speaker to this header.

(see p.2 No. 14)

Chassis Fan Connector Please connect the fan cable

(3-pin CHA_FAN1)

to the fan connector and

(see p.2 No. 5)

match the black wire to the

ground pin.

CPU Fan Connector Please connect the CPU fan

GND

+ 12V

(3-pin CPU_FAN1)

cable to the connector and

CPU_FAN_SPEED

(see p.2 No. 3)

match the black wire to the

ground pin.

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ATX Power Connector Please connect an ATX power

(24-pin ATXPWR1)

supply to this connector.

(see p.2 No. 7)

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13

Though this motherboard provides 24-pin ATX power connector,

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24

it can still work if you adopt a traditional 20-pin ATX power supply.

To use the 20-pin ATX power supply, please plug your

power supply along with Pin 1 and Pin 13.

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20-Pin ATX Power Supply Installation

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ASRock AD2550-ITX Motherboard

Print Port Header This is an interface for print

AFD#

ERROR#

(25-pin LPT1)

PINIT#

port cable that allows

SLIN#

GND

(see p.2 No. 1)

convenient connection of printer

1

SPD7

devices.

SPD6

ACK#

SPD5

BUSY

SPD4

PE

SPD3

SLCT

SPD2

SPD1

SPD0

STB#

Serial port Header This COM1 header supports a

(9-pin COM1)

serial port module.

(see p.2 No. 2)

2.8 Driver Installation Guide

To install the drivers to your system, please insert the support CD to your optical

drive rst. Then, the drivers compatible to your system can be auto-detected and

listed on the support CD driver page. Please follow the order from up to bottom side

to install those required drivers. Therefore, the drivers you install can work properly.

®

2.9 Installing Windows

7 on SATA / SATAII HDDs

®

If you want to install Windows

7 OS on your SATA / SATAII HDDs, please follow

below steps.

Using SATA / SATAII HDDs with NCQ function

STEP 1: Set up UEFI.

A. Enter UEFI SETUP UTILITY Advanced screen Storage Conguration.

B. Set the option “SATA Mode” to [AHCI].

®

STEP 2: Install Windows

7 OS on your system.

Using SATA / SATAII HDDs without NCQ function

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STEP 1: Set up UEFI.

A. Enter UEFI SETUP UTILITY Advanced screen Storage Conguration.

B. Set the option “SATA Mode” to [IDE].

®

STEP 2: Install Windows

7 OS on your system.

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ASRock AD2550-ITX Motherboard

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