ASROCK J4105B-ITX User manual

Version 1.0
Published October 2017
Copyright©2017 ASRock INC. All rights reserved.
Copyright Notice:
No part of this documentation may be reproduced, transcribed, transmitted, or
translated in any language, in any form or by any means, except duplication of
documentation by the purchaser for backup purpose, without written consent of
ASRock Inc.
Products and corporate names appearing in this documentation may or may not
be registered trademarks or copyrights of their respective companies, and are used
only for identication or explanation and to the owners’ benet, without intent to
infringe.
Disclaimer:
Specications and information contained in this documentation are furnished for
informational use only and subject to change without notice, and should not be
constructed as a commitment by ASRock. ASRock assumes no responsibility for
any errors or omissions that may appear in this documentation.
With respect to the contents of this documentation, ASRock does not provide
warranty of any kind, either expressed or implied, including but not limited to
the implied warranties or conditions of merchantability or tness for a particular
purpose.
In no event shall ASRock, its directors, ocers, employees, or agents be liable for
any indirect, special, incidental, or consequential damages (including damages for
loss of prots, loss of business, loss of data, interruption of business and the like),
even if ASRock has been advised of the possibility of such damages arising from any
defect or error in the documentation or product.
is device complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that
may cause undesired operation.
CALIFORNIA, USA ONLY
e Lithium battery adopted on this motherboard contains Perchlorate, a toxic substance
controlled in Perchlorate Best Management Practices (BMP) regulations passed by the
California Legislature. When you discard the Lithium battery in California, USA, please
follow the related regulations in advance.
“Perchlorate Material-special handling may apply, see www.dtsc.ca.gov/hazardouswaste/
perchlorate”
ASRock Website: http://www.asrock.com

AUSTRALIA ONLY
Our goods come with guarantees that cannot be excluded under the Australian Consumer
Law. You are entitled to a replacement or refund for a major failure and compensation for
any other reasonably foreseeable loss or damage caused by our goods. You are also entitled
to have the goods repaired or replaced if the goods fail to be of acceptable quality and the
failure does not amount to a major failure. If you require assistance please call ASRock Tel
: [phone] ext.123 (Standard International call charges apply)
e terms HDMI™ and HDMI High-Denition Multimedia Interface, and the HDMI
logo are trademarks or registered trademarks of HDMI Licensing LLC in the United
States and other countries.

English
1
J4105B-ITX
J4005B-ITX
Motherboard Layout
13 12 11
1
9
3
2
4
5
6
7
810
14
PCIE1
ATXPWR1
AUDI O
CODE C
Super
I/O
DDR4_A1
DDR4_B1
CPU_FAN1
1
USB2_3
HDL ED RE SE T
PLE D PWR BT N
PANEL1
1
COM2
1
SATA3 _ 2
CMOS
Battery
RoHS
1
HD_AUDIO1
BIOS
ROM
Front USB 3.0
LAN
CLRMO S1
1
USB3_1_ 2
SATA3 _1
Top:
LINE IN
Center:
FRONT
Bottom:
MIC IN
1
USB4_5
HDMI1
PARALLEL PORT
COM1 VGA1
USB 3.1 Gen1
T: USB1
B: USB2
PS2
Keyboard/
Mouse
USB 3.1 Gen1:
USB4
RJ-45
USB 2.0: USB3
SPK_C I1
1

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No. Description
1 CPU Fan Connector (CPU_FAN1)
2 ATX Power Connector (ATXPWR1)
3 System Panel Header (PANEL1)
4 Chassis Intrusion and Speaker Header (SPK_CI1)
5 Clear CMOS Jumper (CLRMOS1)
6 Chassis Fan Connector (CHA_FAN1)
7 2 x 260-pin DDR4 SO-DIMM Slots (DDR4_A1, DDR4_B1)
8 COM Port Header (COM2)
9 USB 2.0 Header (USB4_5)
10 USB 3.1 Gen1 Header (USB3_1_2)
11 USB 2.0 Header (USB2_3)
12 SATA3 Connector (SATA3_1)
13 SATA3 Connector (SATA3_2)
14 Front Panel Audio Header (HD_AUDIO1)

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J4105B-ITX
J4005B-ITX
* ere are two LEDs on the LAN port. Please refer to the table below for the LAN port LED indications.
Activity / Link LED Speed LED
Status Description Status Description
O No Link O 10Mbps connection
Blinking Data Activity Orange 100Mbps connection
On Link Green 1Gbps connection
ACT/LINK LED
SPEED LED
LAN Port
I/O Panel
No. Description No. Description
1 PS/2 Mouse/Keyboard Port 7 USB 2.0 Port (USB3_3)
2 Parallel Port 8 USB 3.1 Gen1 Port (USB3_4)
3 LAN RJ-45 Port* 9 HDMI Port
4 Line In (Light Blue)** 10 D-Sub Port
5 Front Speaker (Lime)** 11 COM Port
6 Microphone (Pink)** 12 USB 3.1 Gen1 Ports (USB3_1_2)
79
1 2 3 5
6
8
11 1012
4

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** To congure 7.1 CH HD Audio, it is required to use an HD front panel audio module and enable the multi-
channel audio feature through the audio driver.
Please set Speaker Conguration to “7.1 Speaker”in the Realtek HD Audio Manager.
Function of the Audio Ports in 7.1-channel Conguration:
Port Function
Light Blue (Rear panel) Rear Speaker Out
Lime (Rear panel) Front Speaker Out
Pink (Rear panel) Central /Subwoofer Speaker Out
Lime (Front panel) Side Speaker Out

English
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J4105B-ITX
J4005B-ITX
Chapter 1 Introduction
ank you for purchasing ASRock J4105B-ITX / J4005B-ITX motherboard, a
reliable motherboard produced under ASRock’s consistently stringent quality
control. It delivers excellent performance with robust design conforming to
ASRock’s commitment to quality and endurance.
1.1 Package Contents
! ASRock J4105B-ITX / J4005B-ITX Motherboard (Mini-ITX Form Factor)
! ASRock J4105B-ITX / J4005B-ITX Quick Installation Guide
! ASRock J4105B-ITX / J4005B-ITX Support CD
! 2 x Serial ATA (SATA) Data Cables (Optional)
! 1 x I/O Panel Shield
Because the motherboard specications and the BIOS soware might be updated, the
content of this documentation will be subject to change without notice. In case any
modications of this documentation occur, the updated version will be available on
ASRock’s website without further notice. If you require technical support related to
this motherboard, please visit our website for specic information about the model
you are using. You may nd the latest VGA cards and CPU support list on ASRock’s
website as well. ASRock website http://www.asrock.com.

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1.2 Specications
Platform ! Mini-ITX Form Factor
! Solid Capacitor design
CPU ! Intel® Quad-Core Processor J4105 (up to 2.5 GHz)
(for J4105B-ITX)
! Intel® Dual-Core Processor J4005 (up to 2.7 GHz)
(for J4005B-ITX)
Memory ! Dual Channel DDR4 Memory Technology
! 2 x DDR4 SO-DIMM Slots
* 2GB DRAM per module is not supported.
! Supports DDR4 2400/2133 non-ECC, un-buered memory
! Max. capacity of system memory: 8GB
Expansion
Slot
! 1 x PCI Express 2.0 x16 Slot (PCIE1: x2 mode)
Graphics
tIntegrated Intel® UHD Graphics 600: 12 EUs inside (Up to
750MHz) (for J4105B-ITX)
tIntegrated Intel® UHD Graphics 600: 12 EUs inside (Up to
700MHz) (for J4005B-ITX)
tDX12, OpenGL 4.3, OGL ES 3.0, OpenCL 2.0
tHW Acceleration Decode: HEVC (H.265) 8 bit, HEVC
(H.265)10 bit, H.264 @ Lvl5.2 (AVC), JPEG/MJPEG, VP8,
VP9 8bit, VP9 10 bit
tHW Acceleration Encode: HEVC (H.265) 8 bit, HEVC
(H.265)10 bit, H.264 @ Lvl5.2 (AVC), JPEG/MJPEG, VP8,
VP9 8bit
tDual graphics output: support D-Sub and HDMI ports by
independent display controllers
tSupports HDMI with max. resolution up to 4K x 2K
(4096x2160) @ 30Hz
tSupports D-Sub with max. resolution up to 2048x1536 @
60Hz
tSupports Auto Lip Sync, xvYCC and HBR (High Bit Rate
Audio) with HDMI Port (Compliant HDMI monitor is
required)

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J4105B-ITX
J4005B-ITX
tSupports HDCP with HDMI Port
tSupports Full HD 1080p Blu-ray (BD) playback with HDMI
Port
Audio ! 7.1 CH HD Audio (Realtek ALC887 Audio Codec)
* To congure 7.1 CH HD Audio, it is required to use an HD
front panel audio module and enable the multi-channel audio
feature through the audio driver.
! Supports Surge Protection
! ELNA Audio Caps
LAN ! PCIE x1 Gigabit LAN 10/100/1000 Mb/s
! Realtek RTL8111H
! Supports Wake-On-LAN
! Supports Lightning/ESD Protection
! Supports Energy Ecient Ethernet 802.3az
! Supports PXE
Rear Panel
I/O
! 1 x PS/2 Mouse/Keyboard Port
! 1 x Parallel Port (ECP/EPP Support)
! 1 x Serial Port: COM1
! 1 x D-Sub Port
! 1 x HDMI Port
! 1 x USB 2.0 Port (Supports ESD Protection)
! 3 x USB 3.1 Gen1 Ports (Supports ESD Protection)
! 1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED
LED)
! HD Audio Jacks: Line in / Front Speaker / Microphone
Storage ! 2 x SATA3 6.0 Gb/s Connectors, support NCQ, AHCI and
Hot Plug
Connector ! 1 x COM Port Header
! 1 x Chassis Intrusion and Speaker Header
! 1 x CPU Fan Connector (3-pin)
! 1 x Chassis Fan Connector (3-pin)
! 1 x 24 pin ATX Power Connector
! 1 x Front Panel Audio Connector

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! 2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Supports ESD
Protection)
! 1 x USB 3.1 Gen1 Header (Supports 2 USB 3.1 Gen1 ports)
(Supports ESD Protection)
* USB3_1_2 is shared with USB2_3.
BIOS
Feature
! AMI UEFI Legal BIOS with GUI support
! Supports Plug and Play
! ACPI 5.0 compliant wake up events
! Supports jumperfree
! SMBIOS 3.0 support
Hardware
Monitor
! CPU/Chassis temperature sensing
! CPU/Chassis Fan Tachometer
! CPU/Chassis Quiet Fan (Auto adjust chassis fan speed by
CPU temperature)
! CPU/Chassis Fan multi-speed control
! CASE OPEN detection
! Voltage monitoring: +12V, +5V, +3.3V, CPU Vcore
OS ! Microso® Windows® 10 64-bit
Certica-
tions
! FCC, CE
! ErP/EuP ready (ErP/EuP ready power supply is required)
* For detailed product information, please visit our website: http://www.asrock.com