ASRock b85m-itx: Chapter 2 Installation

Chapter 2 Installation: ASRock b85m-itx

Chapter 2 Installation

is is an Mini-ITX form factor motherboard. Before you install the motherboard,

study the conguration of your chassis to ensure that the motherboard ts into it.

Pre-installation Precautions

Take note of the following precautions before you install motherboard components

or change any motherboard settings.

•

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.

•

In order to avoid damage from static electricity to the motherboard’s components,

NEVER place your motherboard directly on a carpet. Also remember to use a grounded

wrist strap or touch a safety grounded object before you handle the components.

•

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

•

Whenever you uninstall any components, place them on a grounded anti-static pad or

in the bag that comes with the components.

•

When placing screws to secure the motherboard to the chassis, please do not over-

tighten the screws! Doing so may damage the motherboard.

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2.1 Installing the CPU

1. Before you insert the 1150-Pin CPU into the socket, please check if the PnP cap is on the

socket, if the CPU surface is unclean, or if there are any bent pins in the socket. Do not

force to insert the CPU into the socket if above situation is found. Otherwise, the CPU

will be seriously damaged.

2. Unplug all power cables before installing the CPU.

1

A

B

2

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B85M-ITX

3

4

5

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Please save and replace the cover if the processor is removed. e cover must be placed if

you wish to return the motherboard for aer service.

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B85M-ITX

2.2 Installing the CPU Fan and Heatsink

1 2

FAN

CPU_

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2.3 Installing Memory Modules (DIMM)

is motherboard provides two 240-pin DDR3 (Double Data Rate 3) DIMM slots,

and supports Dual Channel Memory Technology.

1. For dual channel conguration, you always need to install identical (the same brand,

speed, size and chip-type) DDR3 DIMM pairs.

2. It is unable to activate Dual Channel Memory Technology with only one memory module

installed.

3. It is not allowed to install a DDR or DDR2 memory module into a DDR3 slot; otherwise,

this motherboard and DIMM may be damaged.

e DIMM only ts in one correct orientation. It will cause permanent damage to the

motherboard and the DIMM if you force the DIMM into the slot at incorrect orientation.

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B85M-ITX

1

2

3

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2.4 Expansion Slots (PCI and PCI Express Slots)

ere is 1 PCI Express slot on this motherboard.

Before installing an expansion card, please make sure that the power supply is switched o

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.

PCIe slots:

PCIE1 (PCIe 3.0 x16 slot) is used for PCI Express x16 lane width graphics cards.

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B85M-ITX

2.5 Jumpers Setup

e illustration shows how jumpers are setup. When the jumper cap is placed on

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

is “Open”. e illustration shows a 3-pin jumper whose pin1 and pin2 are “Short

when a jumper cap is placed on these 2 pins.

Clear CMOS Jumper

(CLRCMOS1)

Clear CMOSDefault

(see p.9, No. 3)

CLRCMOS1 allows you to clear the data in CMOS. To clear and reset the system

parameters to default setup, please turn o the computer and unplug the power

cord from the power supply. Aer waiting for 15 seconds, use a jumper cap to

short pin2 and pin3 on CLRCMOS1 for 5 seconds. However, please do not clear

the CMOS right aer you update the BIOS. If you need to clear the CMOS when

you just nish updating the BIOS, you must boot up the system rst, and then shut

it down before you do the clear-CMOS action. Please be noted that the password,

date, time, and user default prole will be cleared only if the CMOS battery is

removed.

If you clear the CMOS, the case open may be detected. Please adjust the BIOS option “Clear

Status” to clear the record of previous chassis intrusion status.

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2.6 Onboard Headers and Connectors

System Panel Header

Connect the power

GND RESET#

(9-pin PANEL1)

switch, reset switch and

(see p.9, No. 9)

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

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 to the motherboard.

GND

#

GND

PLED-

HDLED-

PLED+

HDLED+

1

PWRBTN (Power Switch):

Connect to the power switch on the chassis front panel. You may congure the way to turn

o 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.

PLED (System Power LED):

Connect to the power status indicator on the chassis front panel. e LED is on when the

system is operating. e LED keeps blinking when the system is in S1/S3 sleep state. e

LED is o when the system is in S4 sleep state or powered o (S5).

HDLED (Hard Drive Activity LED):

Connect to the hard drive activity LED on the chassis front panel. e LED is on when the

hard drive is reading or writing data.

e front panel design may dier by chassis. A front panel module mainly consists of power

switch, reset switch, power LED, hard drive activity LED, speaker and etc. When connect-

ing your chassis front panel module to this header, make sure the wire assignments and the

pin assignments are matched correctly.

B85M-ITX

Serial ATA3 Connectors

ese four SATA3

(SATA3_0:

connectors support SATA

see p.9, No. 10)

data cables for internal

(SATA3_1:

storage devices with up to

see p.9, No. 11)

6.0 Gb/s data transfer rate.

(SATA3_2:

see p.9, No. 12)

(SATA3_3:

see p.9, No. 13)

USB 2.0 Headers

Besides two USB 2.0 ports

(9-pin USB10_11)

on the I/O panel, there

(see p.9, No. 8)

are one header on this

motherboard. Each USB

2.0 header can support

two ports.

USB 3.0 Headers

Besides four USB 3.0 ports

(19-pin USB3_5_6)

on the I/O panel, there

(see p.9, No. 7)

are one header on this

motherboard. Each USB

3.0 header can support

two ports.

Front Panel Audio Header

is header is for

(9-pin HD_AUDIO1)

connecting audio devices

(see p.9, No. 16)

to the front audio panel.

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DUMMY

GNDGND

P+

P+

P-

P-

USB_PWR

USB_PWR

1

1

Dummy

IntA_PB_D+

IntA_PB_D-

GND

IntA_PB_SSTX+

IntA_PB_SSTX-

GND

IntA_PB_SSRX+

IntA_PA_D+

IntA_PA_D-

GND

IntA_PA_SSTX+

IntA_PA_SSTX-

GND

IntA_PA_SSRX+

IntA_PA_SSRX-

IntA_PB_SSRX-

Vbus

Vbus

OUT_RET

OUT2_L

J_SENSE

MIC_RED

OUT2_R

MIC2_R

1

MIC2_L

GND

PRESENCE#

SATA3_3

SATA3_2

SATA3_1

SATA3_0

1. High Denition Audio supports Jack Sensing, but the panel wire on the chassis must sup-

port HDA to function correctly. Please follow the instructions in our manual and chassis

manual to install your system.

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

steps 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 the HD audio panel only. You don’t need to connect

them for the AC’97 audio panel.

E. To activate the front mic, go to the “FrontMic” Tab in the Realtek Control panel and

adjust “Recording Volume”.

Chassis Fan Connector

Please connect fan cable

(4-pin CHA_FAN1)

to the fan connector and

(see p.9, No. 14)

match the black wire to

the ground pin.

CPU Fan Connectors

is motherboard pro-

(4-pin CPU_FAN1)

vides a 4-Pin CPU fan

(see p.9, No. 6)

(Quiet Fan) connector.

If you plan to connect a

3-Pin CPU fan, please

connect it to Pin 1-3.

ATX Power Connector

is motherboard pro-

(24-pin ATXPWR1)

vides a 24-pin ATX power

(see p.9, No. 5)

connector. To use a 20-pin

ATX power supply, please

plug it along Pin 1 and Pin

13.

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GND

+12V

CHA_FAN_SPEED

FAN_SPEED_CONTR

OL

GN D

+ 12V

CPU_FAN_SPEED

FAN_SPEED_CONTRO

12

24

1

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B85M-ITX

ATX 12V Power

is motherboard pro-

Connector

vides an 8-pin ATX 12V

(8-pin ATX12V1)

power connector. To use a

(see p.9, No. 1)

4-pin ATX power supply,

please plug it along Pin 1

and Pin 5.

Chassis Intrusion Header

is motherboard supports

(2-pin CI1)

CASE OPEN detection feature

(see p.9, No. 4)

that detects if the chassis cove

has been removed. This feature

requires a chassis with chassis

intrusion detection design.

TPM Header

is connector supports Trusted

(17-pin TPMS1)

Platform Module (TPM) system,

(see p.9, No. 15)

which can securely store keys,

digital certicates, passwords,

and data. A TPM system also

helps enhance network security,

protects digital identities, and

ensures platform integrity.

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Signa

1

GND

l

PCIRST

#

FRAME

PCICLK