GIGAIPC mITX-2748A User manual

Mini-ITX Motherboard mITX-2748A (MRZV2MI)
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mITX-2748A (MRZV2MI)
Mini-ITX Motherboard
User’s Manual 1st Ed

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Copyright Notice
This document is copyrighted, 2022. All rights are reserved. The
original manufacturer reserves the right to make improvements to the
products described in this manual at any time without notice.
No part of this manual may be reproduced, copied, translated, or
transmitted in any form or by any means without the prior written
permission of the original manufacturer. Information provided in
this manual is intended to be accurate and reliable. However, the
original manufacturer assumes no responsibility for its use, or for any
infringements upon the rights of third parties that may result from its
use.
The material in this document is for product information only and
is subject to change without notice. While reasonable efforts have
been made in the preparation of this document to assure its accuracy,
GIGAIPC assumes no liabilities resulting from errors or omissions in this
document, or from the use of the information contained herein.
GIGAIPC reserves the right to make changes in the product design
without notice to its users.

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Acknowledgement
All other products’ name or trademarks are properties of their
respective owners.
• AMD® is trademark of Advanced Micro Devices.
• Microsoft Windows is a registered trademark of Microsoft Corp.
• Intel, Pentium, Celeron, and Xeon are registered trademarks of Intel
Corporation
• Core, Atom are trademarks of Intel Corporation
• ITE is a trademark of Integrated Technology Express, Inc.
• IBM, PC/AT, PS/2, and VGA are trademarks of International Business
Machines Corporation.
All other product names or trademarks are properties of their
respective owners.
Packing List
Before setting up your product, please make sure the following items
have been shipped:
Item Quantity
mITX-2748A MB 1
SATA power cable 1
I/O Bracket 1
mITX-V2000 Fan Sink 1
If any of these items are missing or damaged, please contact your
distributor or sales representative immediately.

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Assembly Sequence
Material fan-sink.
※The image is for reference only.
The actual product could be slightly different.
Torque 2.5 kgf-cm
Assembly action
1>. Connect the fansink and the CPU Fan connector.
Remove the release paper on the pad of the fansink.
2>.
Using your hand to fix the fansink to the correct
corresponding hole position, and assemble the fansink as
shown in the figure above.
The correct torque is needed to be used to assemble the
fansink.
3>. If you want to disassemble the fansink, please reverse
(starting from position 4) to remove.
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Mini-ITX Motherboard mITX-2748A (MRZV2MI)
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About this Document
This User’s Manual contains all the essential information, such as
detailed descriptions and explanations on the product’s hardware
and software features (if any), its specifications, dimensions, jumper/
connector settings/definitions, and driver installation instructions (if
any), to facilitate users in setting up their product.
Users may refer to the GIGAIPC.com for the latest version of this
document.

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Safety Precautions
Please read the following safety instructions carefully. It is advised that
you keep this manual for future references
1. All cautions and warnings on the device should be noted.
2. Make sure the power source matches the power rating of the
device.
3. Position the power cord so that people cannot step on it. Do
not place anything over the power cord.
4. Always completely disconnect the power before working on the
system’s hardware.
5. No connections should be made when the system is powered
as a sudden rush of power may damage sensitive electronic
components.
6. If the device is not to be used for a long time, disconnect it from
the power supply to avoid damage by transient over-voltage.
7. Always disconnect this device from any AC supply before
cleaning.
8. While cleaning, use a damp cloth instead of liquid or spray
detergents.
9. Make sure the device is installed near a power outlet and is
easily accessible.
10. Keep this device away from humidity.
11. Place the device on a solid surface during installation to prevent
falls
12. Do not cover the openings on the device to ensure optimal heat
dissipation.

Mini-ITX Motherboard mITX-2748A (MRZV2MI)
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13. Watch out for high temperatures when the system is running.
14. Do not touch the heat sink or heat spreader when the system is
running
15. Never pour any liquid into the openings. This could cause fire or
electric shock.
16. As most electronic components are sensitive to static electrical
charge, be sure to ground yourself to prevent static charge
when installing the internal components. Use a grounding
wrist strap and contain all electronic components in any static-
shielded containers.
17. If any of the following situations arises, please the contact our
service personnel:
i. Damaged power cord or plug
ii. Liquid intrusion to the device
iii. Exposure to moisture
iv. Device is not working as expected or in a manner as described
in this manual
v. The device is dropped or damaged
vi. Any obvious signs of damage displayed on the device
18. DO NOT LEAVE THIS DEVICE IN AN UNCONTROLLED
ENVIRONMENT WITH TEMPERATURES BEYOND THE DEVICE’S
PERMITTED STORAGE TEMPERATURES (SEE CHAPTER 1) TO
PREVENT DAMAGE.

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FCC Statement
This device complies with Part 15 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.
Caution:
There is a danger of explosion if the battery is incorrectly replaced. Replace only with
the same or equivalent type recommended by the manufacturer. Dispose of used
batteries according to the manufacturer’s instructions and your local government’s
recycling or disposal directives.
Attention:
Il y a un risque d’explosion si la batterie est remplacée de façon incorrecte.
Ne la remplacer qu’avec le même modèle ou équivalent recommandé par le
constructeur. Recycler les batteries usées en accord avec les instructions du fabricant
et les directives gouvernementales de recyclage.

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China RoHS Requirements (CN)
产品中有毒有害物质或元素名称及含量
GIGAIPC Main Board/ Daughter Board/ Backplane
部件名称
有毒有害物质或元素
铅
(Pb)
汞
(Hg)
镉
(Cd)
六价铬
(Cr(VI))
多溴联苯
(PBB)
多溴二苯醚
(PBDE)
印刷电路板
及其电
子组件
○ ○ ○ ○ ○ ○
外部信号
连接器
及线材
○ ○ ○ ○ ○ ○
O：表示该有毒有害物质在该部件所有均质材料中的含量均在
SJ/T 11363-2006 标准规定的限量要求以下。
X：表示该有毒有害物质至少在该部件的某一均质材料中的含量超出
SJ/T 11363-2006 标准规定的限量要求。
备注：此 产 品 所 标 示 之 环 保 使 用 期 限，系 指 在 一 般 正 常 使 用 状 况下。

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China RoHS Requirement (EN)
Poisonous or Hazardous Substances or Elements in Products
GIGAIPC Main Board/ Daughter Board/ Backplane
Component
Poisonous or Hazardous Substances or Elements
Lead
(Pb)
Mercury
(Hg)
Cadmium
(Cd)
Hexavalent
Chromium
(Cr(VI))
Polybrominated
Biphenyls
(PBB)
Polybrominated
Diphenyl Ethers
(PBDE)
PCB & Other
Components O O O O O ○
Wires &
Connectors
for External
Connections
O O O O O O
O：The quantity of poisonous or hazardous substances or elements found in each
of the component's parts is below the SJ/T 11363-2006-stipulated requirement.
X: The quantity of poisonous or hazardous substances or elements found in at least
one of the component's parts is beyond the SJ/T 11363-2006-stipulated requirement.
Note: The Environment Friendly Use Period as labeled on this
product is applicable under normal usage only

Mini-ITX Motherboard mITX-2748A (MRZV2MI)
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Table Contents
Mini-ITX Motherboard 1
User’s Manual 1st Ed
Copyright Notice .......................................................................... 2
Acknowledgement ....................................................................... 3
Packing List................................................................................... 3
Assembly Sequence ..................................................................... 4
About this Document ................................................................... 5
Safety Precautions ....................................................................... 6
FCC Statement.............................................................................. 8
China RoHS Requirements (CN).................................................... 9
China RoHS Requirement (EN) ................................................... 10
Chapter 1 – Product Specifications 14
1.1 Specifications ............................................................... 16
Chapter 2 – Hardware Information 18
2.1 Jumpers and Connectors ............................................. 19
2.2.1 IO Connector Information............................................. 22
2.2.2 DC_IN1 (DC IN Jack connector)..................................... 23
2.2.3 COM1_2 (COM Port (RS-232/422/485 & RI/5V/12V))...... ..24
2.2.4 DP1_2, DP3_4 (Display ports)....................................... 25
2.2.5 USB3_LAN1, USB3_LAN2 (USB+LAN connector x 2)..... ..26
2.2.6 DC_IN2 (ATX 2x2 pin power connector)....................... 27
2.2.7 SYS_FAN (System Fan connector)................................. 28

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2.2.8 ATX_CTL (ATX Control header, Support PS-ON Signal of
Power Supply Unit) ....................................................... 29
2.2.9 SATAPW (SATA power connector) ................................. 30
2.2.10 SATA0 (SATA 6Gb/s Connector) ..................................... 31
2.2.11 F_USB2_1, F_USB2_3, F_USB2_2 (USB 2.0 header) ..... 32
2.2.12 GPIO_CNT(General purpose input/output connector) 33
2.2.13 COM3, COM4 (COM header (RS-232/422/485)) ........... 34
2.2.14 SYS_PANEL (Front Panel Header)................................ 35
2.2.15 TPM_LPC (TPM header)................................................ 36
2.2.16 AT_CN (AT/ATX mode select jumper) ........................... 37
2.2.17 SODIMM1, SODIMM2 (2 x DDR4 SO-DIMM slots)........ 38
2.2.18 CPU_FAN (CPU Fan connector)..................................... 39
2.2.19 PCIEX16 (PCIE x16 slot) ............................................... 40
2.2.20 BAT (Battery connector) ...............................................41
2.2.21 FP_AUDIO (Front panel audio header).......................... 42
2.2.22 SPKR (Speaker out connector) .................................... 43
2.2.23 CLR_CMOS (Clear CMOS jumper) ................................. 44
2.2.24 MPCIE (Mini PCIE connector)........................................ 45
2.2.25 M2E (M.2 E-key NGFF 2230) ......................................... 46
2.2.26 LVDS (LVDS connector).................................................. 47
2.2.27 LVDS_DP (LVDS/DP jumper).......................................... 48
2.2.28 LSW (LVDS resolution jumper) ...................................... 49
2.2.29 BKL_CN (Backlight control connector).......................... 50
2.2.30 JCOM1, JCOM2 (RI# pin RI#/5V/12V Select jumper for
COM1 & COM2 port) .................................................. 51
2.2.31 M2M (M.2 M-key NGFF 2280).................................... 52

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Chapter 3 – BIOS 53
3.1 Introduction .................................................................. 54
3.2 The Main Menu............................................................. 55
3.3 Advanced ...................................................................... 56
3.3.1 TPM Configuration........................................................ 57
3.3.2 IT8786 Super IO Configuration ..................................... 58
3.3.3 Hardware Monitor ........................................................ 59
3.3.4 S5 RTC Wake Settings ................................................... 60
3.3.5 CPU Configuration ........................................................ 61
3.3.6 SATA Configuration ....................................................... 62
3.3.7 AMI Graphic Output Protocol Policy............................. 63
3.3.8 Network Stack Configuration........................................ 64
3.3.9 NVMe Configuration..................................................... 65
3.3.10 AMD CBS ....................................................................... 66
3.3.11 AMD PBS ....................................................................... 67
3.3.12 Digital IO Port Configuration ........................................ 68
3.4 Chipset .......................................................................... 69
3.5 Security ......................................................................... 70
3.6 Boot............................................................................... 73
3.7 Save & Exit .....................................................................74

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Mini-ITX Motherboard mITX-2748A (MRZV2MI)
Chapter 1
Chapter 1 – Product Specifications

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6.2 157.5
170
33 132.1
170
10.2
8.6 25.8 28.9 22.8 21.4 21.7 18.1
1.631.7

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Mini-ITX Motherboard mITX-2748A (MRZV2MI)
1.1 Specifications
Motherboard mITX-2748A (MRZV2MI)
Form Factor Mini-ITX
170W x 170D (mm)
CPU
AMD Ryzen™ V2748 Embedded Processor
7nm, 8 cores, 16 threads, 2.9 GHz, up to 4.25GHz
TDP 45W
Socket 1 x FP6 BGA
Chipset —
Memory 2 x DDR4 SO-DIMM sockets, Max. Capacity 32 GB
Support Dual channel DDR4 3200 MHz memory modules
Ethernet 2 x GbE LAN Ports (Realtek® RTL8118-CG)
Video
Integrated Graphics Processor -
AMD Radeon(TM) Graphics:
4 x DP ports, supporting a maximum resolution of 4096x2160
@60Hz
1 x LVDS port, supporting a maximum resolution of 1080P
(switch from DP)
(4 independent display outputs)
Audio Realtek® Audio Codec
Storage 1 x SATA 6Gb/s Port
Expansion Slots
1 x PCIe x16 (Gen3 x8)
1 x 2280 M.2 M-Key (SATA 6Gb/s)
1 x 2230 M.2 E-Key
1 x Full-size mini PCIe with SIM slot

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Motherboard mITX-2748A (MRZV2MI)
Internal I/O
1 x 4-pin ATX power connector
1 x SATA power connector
1 x CPU fan header
1 x System fan header
1 x Front panel header
1 x Front panel audio header
1 x 2W Speaker out header
6 x USB 2.0 headers
2 x COM headers (RS-232/422/485)
1 x GPIO (8 bits) & SMBus header
1 x Backlight Control header
1 x LVDS/ DP Jumper
1 x AT/ATX mode jumper
1 x ATX Control header
1 x Clear CMOS jumper
Rear I/O
2 x Audio Jacks (Line out, Mic in)
2 x COM Ports (RS-232/422/485 & RI/5V/12V)
4 x Display Ports
2 x RJ45 LAN Ports
4 x USB 3.2 Gen 1
1 x DC Jack (+12V~24VDC)
TPM 1 x TPM header
OS Compatibility Windows 10 (x64)
Operating
Properties
Operating temperature: 0°C to 60°C
Operating humidity: 0-90% (non-condensing)
Non-operating temperature: -40°C to 85°C
Non-operating humidity: 0%-95% (non-condensing)
Order Information Fan version: 9MRZV2MIMR-SI (Box packing)
Optional Kit TPM 2.0 module: 9CTM000NR-00

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Mini-ITX Motherboard mITX-2748A (MRZV2MI)
Chapter 2
Chapter 2 – Hardware Information

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2.1 Jumpers and Connectors
2
1
8
10
9
11
14
13
161920
21
22
34
24
26 27
28
29
31
6
7
12
15
1718
23
25
30
32
33
5

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Mini-ITX Motherboard mITX-2748A (MRZV2MI)
No Code Description
1DC_IN1 DC IN Jack connector
2COM1_2 COM Port (RS-232/422/485 & RI/5V/12V)
3DP1_2
DP3_4 Display ports
4USB3_LAN1
USB3_LAN2
LAN Connector x 2
5 USB 3.2 Gen 1 Connector x 4
6AUDIO Line Out port (Green)
7Mic In port (Pink)
8DC_IN2 ATX 2x2 pin power connector
9SYS_FAN System fan connector
10 ATX_CTL ATX Control header, Support PS-ON
Signal of Power Supply Unit
11 SATAPW SATA power connector
12 SATA0 SATA 6Gb/s connector
13
F_USB2_1,
F_USB2_3,
F_USB2_2
USB 2.0 header
14 GPIO_CNT General Purpose input/output header
15 COM3, COM4 COM Port (RS-232/422/485)
16 SYS_PANEL Front panel header
17 TPM_LPC TPM header
18 AT_CN AT/ATX mode select jumper
19 SODIMM1,
SODIMM2 2 x DDR4 SO-DIMM slots