ASRock Industrial NUC-155H User manual

NUC-155H
NUC-125H
User Manual
Version 1.0
Published January 24, 2024
Copyright©2024 ASRockInd INC. All rights reserved.

Version 1.0
Published January 2024
Copyright©2024 ASRockInd 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 ASRockInd 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:
Specifications 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 ASRockInd. ASRockInd assumes no responsibility for
any errors or omissions that may appear in this documentation.
With respect to the contents of this documentation, ASRockInd 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 ASRockInd, its directors, officers, employees, or agents be liable for
any indirect, special, incidental, or consequential damages (including damages for loss
of profits, loss of business, loss of data, interruption of business and the like), even if
ASRockInd 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.
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.

WARNING
THIS PRODUCT CONTAINS A BUTTOON BATTERY
If swallowed, a button battery can cause serious injury or death.
Please keep batteries out of sight or reach of children.
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”
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 ASRockInd
Tel : [phone] ext.123 (Standard International call charges apply)
ASRockInd follows the green design concept to design and manufacture our products,
and makes sure that each stage of the product life cycle of ASRockInd product is in line
with global environmental regulations. In addition, ASRockInd disclose the relevant in-
formation based on regulation requirements.
DO NOT throw the motherboard in municipal waste. is product has been
designed to enable proper reuse of parts and recycling. This symbol of the
crossed out wheeled bin indicates that the product (electrical and electronic
equipment) should not be placed in municipal waste. Check local regulations
for disposal of electronic products.

P/N: 15G062470000AK V1.0
*15G062470000AK*
Button Battery Safety Notice
- Remove and immediately recycle or dispose of used batteries according to local
regulations and keep away from children. Do NOT dispose of batteries in household
trash or incinerate.
- Even used batteries may cause severe injury or death.
- Call a local poison control center for treatment information.
- Battery type: CR2032
- Battery voltage: 3.3V
- Non-rechargeable batteries are not to be recharged.
- Do not force discharge, recharge, disassemble, heat above (manufacturer's specied
temperature rating) or incinerate. Doing so may result in injury due to venting,
leakage or explosion resulting in chemical burns.
- is product contains an irreplaceable battery.
- is icon indicates that a swallowed button battery can cause serious injury or death.
Please keep batteries out of sight or reach of children.
WARNING
•INGESTION HAZARD: This product contains a button cell or
coin battery.
•DEATHor serious injury can occur if ingested.
•A swallowed button cell or coin battery can cause Internal
Chemical Burns in as little as 2 hours.
•KEEP new and used batteries OUT OF REACH of CHILDREN
•Seek immediate medical attention if a battery is suspected to
be swallowed or inserted inside any part of the body.
Button Battery Safety Notice

Contents
Chapter 1 Introduction 1
1.1 Package Contents 1
1.2 Specications 2
1.3 Motherboard Layout 4
1.4 I/O Panel 6
1.5 Block Diagram 7
Chapter 2 Installation 8
2.1 Screw Holes 8
2.2 Pre-installation Precautions 8
2.3 Installation of Memory Modules 9
2.4 Expansion Slots 10
2.5 Onboard Headers and Connectors 11
Chapter 3 UEFI SETUP UTILITY 14
3.1 Introduction 14
3.1.1 Entering BIOS Setup 14
3.1.2 UEFI Menu Bar 15
3.1.3 Navigation Keys 16
3.2 Main Screen (Advanced Mode) 17
3.3 Advanced Screen 18
3.3.1 CPU Conguration 19
3.3.2 Chipset Conguration 22
3.3.3 Storage Conguration 25

3.3.4 Super IO Conguration 27
3.3.5 AMT Conguration 28
3.3.6 ACPI Conguration 30
3.3.7 USB Conguration 31
3.3.8 Power Conguration 32
3.3.9 Trusted Computing 33
3.4 Hardware Health Event Monitoring Screen 35
3.5 Security Screen 36
3.6 Boot Screen 37
3.7 Exit Screen 38

1
NUC-155H_NUC-125H
Chapter 1 Introduction
Thank you for purchasing ASRockInd NUC-155H / NUC-125H motherboard, a reliable
motherboard produced under ASRockInd’s consistently stringent quality control. It delivers
excellent performance with robust design conforming to ASRockInd’s commitment to quality
and endurance.
In this manual, chapter 1 and 2 contain introduction of the motherboard and step-by-step
guide to the hardware installation. Chapter 3 contains the conguration guide to BIOS setup.
Because the motherboard specications and the BIOS soware might be updated, the
content of this manual will be subject to change without notice. In case any modica-
tions of this manual occur, the updated version will be available on ASRockInd website
without further notice.
ASRockInd website: https://www.asrockind.com/en-gb/NUC-155H
https://www.asrockind.com/en-gb/NUC-125H
If you require technical support related to this motherboard, please visit our website for
specic information about the model you are using.
https://www.asrockind.com/technical-support
1.1 Package Contents
ASRockInd NUC-155H / NUC-125H Motherboard (NUC (4.09-in x 4.02-in x 1.5-in, 10.4 cm
x 10.2 cm x 3.8 cm)

2
1.2 Specications
Form
Factor Dimensions NUC (4.09-in x 4.02-in x 1.5-in, 10.4 cm x 10.2 cm x 3.8 cm
Processor
System
CPU
Intel® Core™ Ultra processors (Meteor Lake-H/U)
NUC-155H (6P+8E)
NUC-125H (4P+8E)
Chipset MCP
BIOS AMI SPI 256 Mbit
Memory
Technology Dual Channel DDR5 5600 MHz
Capacity 96GB (48 GB per DIMM)
Socket 2 x 262-pin SO-DIMM
Graphics
Controller Intel® Graphics
HDMI HDMI 2.1 TMDS
Max resolution up to 4096x2160@60Hz
DisplayPort DisplayPort 2.1/ 1.4a, DP++
Max resolution up to 4096x2160@60Hz
Multi
Display Max 4 display (Included 2 outputs from Type-C)
Expansion
Slot M.2 1 x M.2 (Key E, 2230) with PCIe x1, USB 2.0 and CNVi for Wireless
Audio Interface Realtek ALC256, High Denition Audio
Ethernet
Controller/
Speed
LAN1: Intel® I226LM with 10/100/1000/2500 Mbps
LAN2: Intel® I226V with 10/100/1000/2500 Mbps
Controller 2 x RJ-45
Front I/O USB
1 x USB 3.2 Gen2 (Type-A)
1 x USB4/underboltTM 4 (5V/3A, supports DP 2.1
display output)
1 x USB3.2 Gen2x2 (Type-C, 5V/3A, supports DP1.4a
display output)
*For underbolt support, please refer to support list.
Audio 1 (headphone & microphone jack)
Rear I/O
HDMI 2 x HDMI 2.1 TMDS
Ethernet 2 x 2.5 Gigabit LAN
USB 2 x USB 3.2 Gen2 (Type-A)
DC Jack 1
Storage M.2
1 x M.2 (KEY M, 2242) with PCIe Gen4 x4 for SSD
1 x M.2 (KEY M, 2242/2280) with PCIe Gen4 x4 for
SSD
SATA 1 x SATA3.0 (6.0 Gb/s)

3
NUC-155H_NUC-125H
Security TPM Intel® PTT
Watchdog
Timer
Output From Super I/O to drag RESETCON#
Interval 256 Segments, 0, 1, 2, ...255 Sec
Power
Requirements
Input PWR 12V~24V DC-In Jack
Power On
AT/ATX Supported
- AT : Directly PWR on as power input ready
- ATX : Press button to PWR on aer power
input ready
Environment
Operating
Temperature -20ºC ~ 70ºC
Storage
Temperature -40ºC ~ 85ºC
Operating
Humidity 5% ~ 90%
Storage
Humidity 5% ~ 90%

4
1.3 Motherboard Layout
NUC-155H
Industrial
LAN1
LAN2
USB 3.2 Gen2
Top: USB3_1
Bottom: USB3_2
M2_M1M2_E1
BIOS
ROM
DC-JACK1
DC-IN1
(BOM option)
1
1
12 4
5
7
3
1
M2_M2
1
1
DDR5_A1
DDR5_ 1B
R
AUDIO1
1
1
PANEL1
PW _BTNR1
USB 3.2 Gen2:
USB3T_2
USB 32Gen2/.
DP (Type-C):
TC_U3D_1
USB4/
ThunderboltTM
(Type-C):
TC_TB_0
Bottom:
HDMI2
Top:
HDMI1
1
SATA3_0
1
JP1
6
PWR BTN P LED
RES ET HD LED
1 : M.2 Key-M Socket (M2_M1)
2 : M.2 Key-E Socket (M2_E1)
3 : M.2 Key-M Socket (M2_M2)
4 : SATA3 Port (SATA3_0)
5 : System Panel Header (PANEL1)
6 : JP1 Header (JP1)
7 : 4-pin DC-in Wafer (DC_IN1) (BOM option)

5
NUC-155H_NUC-125H
BAT1
ESPI1
1
1
FAN1
8
910
1
Back Side :
8 : Fan Connector (FAN1)
9 : Battery Connector (BAT1)
10 : ESPI Connector (ESPI)

6
1.4 I/O Panel
1 Power Button (PWR_BTN1)
2 USB 3.2 Gen2x2/DP Type-C Port
(TC_U3D_1)
3 USB4/underbolt™ 4 Type-C Port
(TC_TB_0)
4 USB 3.2 Gen2 Port (USB3T_2)
5 Combo Audio Jack (AUDIO1)
(Headphone + MIC)
6 RJ-45 LAN Port (LAN1)*
7 RJ-45 LAN Port (LAN2)*
8 HDMI Port (HDMI1)
9 HDMI Port (HDMI2)
10 USB 3.2 Gen2 Port (USB3_1)
11 USB 3.2 Gen2 Port (USB3_2)
12 DC-In Jack (DC_JACK1)
11689
10
3
14
25
12
7
Front I/O :
Rear I/O :
ACT/LINK
LED
SPEED
LED
LAN1 Port
SPEED LED
Status Description
O 10Mbps connection
Orange 100Mbps/1Gbps connection
Green 2.5Gbps connection
Activity/Link LED
Status Description
O No Link
Blinking Data Activity
On Link
* ere are two LEDs on the LAN1 and LAN2 ports. Please refer to the table below for LAN1 and LAN2
ports LED indications.
LAN1, LAN2 Ports LED Indications
11689
10
3
14
25
12
7
LAN2 Port

7
NUC-155H_NUC-125H
1.5 Block Diagram
MTL-155H
DDI
PCIe x4
NUVOTON
NCT5525D
SPI
HDA
FAN
BIOS
PCIe x1
M.2 Key M
(2280)
SO-DIMM
(A1)
HDMI
Connector
Channel B
DDR5 5600MHz
Channel A
DDR5 5600MHz
DDI
2 x USB 3.2 Gen2
Type-A
PCIe x1
MDI 2.5G Intel
I226LM
1x USB 3.2 Gen2
1 x USB 3.2 Gen2
Type-A
Realtek
ALC256
SO-DIMM
(B1)
HDMI
Connector
CPU FAN x1
2 x USB 2.0
2 x USB 3.2 Gen2
RJ45
Connector
PCIe x1
Intel
I226V
RJ45
Connector
MDI 2.5G
USB 2.0 M.2 Key E
Line In/Line
Out
Mic In
eSPI
TCP
Type-C
Connector
Thunderbolt
Type-C
Connector
NUC-155H
NUC-125H
TCP
Hayden
Bridge
PCIe x4 M.2 Key M
(2242)
SATA3 SATA
Connector

8
Chapter 2 Installation
This is a NUC (4.09-in x 4.02-in x 1.5-in, 10.4 cm x 10.2 cm x 3.8 cm) form factor
motherboard. Before you install the motherboard, study the conguration of your chassis to
ensure that the motherboard ts into it.
2.1 Screw Holes
Place screws into the holes to secure the motherboard to the chassis.
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.
5. Heatsink (e thermal solution of whole system needs to be designed additionally.)
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.
Do not over-tighten the screws! Doing so may damage the motherboard.
Before you install or remove any component, ensure that the power is switched o 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.

9
NUC-155H_NUC-125H
2.3 Installation of Memory Modules
NUC-155H / NUC-125H provides two 262-pin DDR5 (Double Data Rate 5) slots, and
supports Dual Channel Memory Technology.
Step 1. Align a SO-DIMM on the slot such that the notch on the SO-DIMM matches the
break on the slot.
1. e SO-DIMM only ts in one correct orientation. It will cause permanent damage to
the motherboard and the SO-DIMM if you force the SO-DIMM into the slot at incor-
rect orientation.
2. Please do not intermix dierent voltage SO-DIMMs on this motherboard.
Step 2. 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.

10
2.4 Expansion Slots
ere are three M.2 sockets on this motherboard.
M.2 sockets:
1 x M.2 (Key E, 2230) with PCIe x1, USB 2.0 and CNVi for Wireless
1 x M.2 (KEY M, 2242) with PCIe Gen4x4 for SSD
1 x M.2 (KEY M, 2242/2280) with PCIe Gen4x4 for SSD
M.2 Key-M Socket
(M2_M1)
M.2 Key-E Socket
(M2_E1)
M.2 Key-M Socket
(M2_M2)
Pin Signal Signal Pin
1 GND +3.3V 2
3 USB_D+ +3.3V 4
5 USB_D- NA 6
7 GND NA 8
9NA NA 10
11 NA NA 12
13 NA NA 14
15 NA NA 16
17 NA GND 18
19 NA NA 20
21 NA NA 22
23 NA
NA 32
33 GND NA 34
35 PE Tp NA 36
37 PETn NA 38
39 GND NA 40
41 PERp NA 42
43 PERn NA 44
45 GND NA 46
47 PEFCLKp NA 48
49 PEFCLKn SUSCLK 50
51 GND PERST0# 52
53 CLKREQ# W_DISABLE1# 54
55 NA W_DISABLE2# 56
57 GND NA 58
59 NA NA 60
61 NA NA 62
63 GND NA 64
65 NA NA 66
67 NA NA 68
69 GND NA 70
71 NA +3.3V 72
73 NA +3.3V 74
75 GND
Pin Signal Signal Pin
1 GND +3.3V 2
3 GND +3.3V 4
5 PERn3 NA 6
7 PERp3 NA 8
9 GND SATA_LED 10
11 PETn3 +3.3V 12
13 PE Tp 3 +3.3V 14
15 GND +3.3V 16
17 PERn2 +3.3V 18
19 PERp2 NA 20
21 GND NA 22
23 PETn2 NA 24
25 PE Tp 2 NA 26
27 GND NA 28
29 PERn1 NA 30
31 PERp1 GND 32
33 GND USB_D+ 34
35 PETn1 USB_D- 36
37 PE Tp 1 GND 38
39 GND NA 40
41 PERn0 NA 42
43 PERp0 NA 44
45 GND NA 46
47 PETn0 NA 48
49 PETP0 PERST# 50
51 GND CLKREQ# 52
53 PEFCLKn NA 54
55 PEFCLKp NA 56
57 GND NA 58
67 NA NA 68
69 PEDET +3.3V 70
71 GND +3.3V 72
73 GND +3.3V 74
75 GND
* Pin34 and Pin36 are dened as USB
2.0 signal to support Key-M to Key-B
extension card.
Pin Signal Signal Pin
1 GND +3.3V 2
3 GND +3.3V 4
5 PERn3 NA 6
7 PERp3 NA 8
9 GND SATA_LED 10
11 PETn3 +3.3V 12
13 PE Tp 3 +3.3V 14
15 GND +3.3V 16
17 PERn2 +3.3V 18
19 PERp2 NA 20
21 GND NA 22
23 PETn2 NA 24
25 PE Tp 2 NA 26
27 GND NA 28
29 PERn1 NA 30
31 PERp1 GND 32
33 GND NA 34
35 PETn1 NA 36
37 PE Tp 1 GND 38
39 GND NA 40
41 PERn0 NA 42
43 PERp0 NA 44
45 GND NA 46
47 PETn0 NA 48
49 PETP0 PERST# 50
51 GND CLKREQ# 52
53 PEFCLKn NA 54
55 PEFCLKp NA 56
57 GND NA 58
67 NA NA 68
69 PEDET +3.3V 70
71 GND +3.3V 72
73 GND +3.3V 74
75 GND

11
NUC-155H_NUC-125H
2.5 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 per-
manent damage to the motherboard!
SATA3 Port
(SATA3_0)
(see p. 4, No. 4)
e Serial ATA3 (SATA3) connector supports SATA data cables for internal storage devices.
e current SATA3 interface allows up to 6.0 Gb/s data transfer rate.
201
Pin Signal Name
1GND
2SATA_A+
3SATA_A-
4GND
5GND
6SATA_B-
7SATA_B+
8GND
9GND
10 GND
11 NC
12 +5V
13 +5V
14 +5V
15 +5V
16 +5V
17 NC
18 GND
19 GND
20 GND
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.
System Panel Header
(9-pin PANEL1)
(see p. 4, No. 5)
is header accommodates several system front panel functions.
Pin Signal Name Signal Name Pin
1 HDLED+ PLED+ 2
3 HDLED- PLED- 4
5 GND PWRBTN# 6
7 RESET# GND 8
9 DUMMY 10
1 2
9 10

12
JP1 Header
(8-pin JP1)
(see p. 4, No. 6)
* Auto clear CMOS when system boot improperly.
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 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.
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 assignments are matched correctly.
4-pin DC-In Wafer (BOM option)
(4-pin DC-IN1)
(see p. 4, No. 7)
4
1
Pin Signal Name
1GND
2DC Input
3DC Input
4GND
1
2
7
8
Pin Signal Name
JP1_13 Reserved JP for AT (Default)
JP1_68 Reserved JP for Clear CMOS
(Default)
JP1_12 SIO AT Mode
JP1_46 Clear CMOS
JP1_57 DACC* (Default)

13
NUC-155H_NUC-125H
Back Side :
Fan Connector
(4-pin FAN1)
(see p. 5, No. 8) 4 1
Pin Signal Name
1GND
2+5V
3FAN_SPEED
4FAN_SPEED_CONTROL
Battery Connector
(2-pin BAT1)
(see p. 5, No. 9)
BAT1
12 Pin Signal Name
1+BAT
2GND
ESPI Connector
(20-pin ESPI1)
(see p. 5, No. 10)
20 1Pin Signal Name
1GND
2ESPI_CLK
3GND
4ESPI_CS#
5ESPI_RESET#
6GND
7+3V
8GND
9SMB_CLK
10 SMB_DATA
11 ESPI_IO0
12 ESPI_IO1
13 ESPI_IO2
14 ESPI_IO3
15 GND
16 +3VSB
17 Internal use
18 Internal use
19 ESPI_ALERT#
20 GND