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NUC 14
Performance Kit
NUC14SRKU7A
NUC14SRKU9B
Technical Product Specifications (TPS)
Regulatory Model: NUC14SRK (Kit)
E24133
Revised Edition V3
July 2024

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documentation kept by the purchaser for backup purposes, without the express written permission of ASUSTeK
COMPUTER INC. (“ASUS”).
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SERVICE AND SUPPORT
Visit our multi-language website at https://www.asus.com/support/.

2
Contents
About this guide. ............................................................................................................... 5
Package contents. ............................................................................................................. 9
1. Product Specification
1.1 Specifications. ......................................................................................................... 11
1.2 Feature Summary................................................................................................... 12
2. Product Introduction
2.1 Board Layout............................................................................................................ 17
2.2 Front view. ................................................................................................................ 18
2.3 Rear view................................................................................................................... 18
2.4 Block Diagram. ........................................................................................................ 19
2.5 Feature Descriptions.............................................................................................. 20
2.5.1 System Memory.......................................................................................................... 20
2.5.2 Processor Graphics Subsystem. ............................................................................ 20
2.5.3 Integrated Audio. ....................................................................................................... 21
2.5.4 SDXC Card Reader...................................................................................................... 21
2.5.5 Real-Time Clock Subsystem.................................................................................... 21
2.5.6 LAN Subsystem. .......................................................................................................... 24
2.5.7 Hardware Management Subsystem.................................................................... 25

3. NUC System Setup
3.1 Installing the stand................................................................................................ 27
3.2 Connecting the display........................................................................................ 28
3.3 Connecting the LAN cable.................................................................................. 29
3.4 Connecting the power adapter. ....................................................................... 30
3.5 Powering on the system. ..................................................................................... 32
4. NUC Component Integration
4.1 Opening system...................................................................................................... 33
4.2 DDR5 SO-DIMM Installation. .............................................................................. 36
4.3 M.2 module Installation....................................................................................... 37
4.3.1 M.2 slot with Q-latch................................................................................................. 37
4.3.2 M.2 slot with clip. ....................................................................................................... 38
4.4 Closing system. ....................................................................................................... 39

3
5. Technical references
5.1 Signal Tables for the Connectors and Header.............................................. 41
5.1.1 M.2 2280 Module Connector. ................................................................................ 42
5.1.2 BIOS Security Jumper. .............................................................................................. 44
5.1.3 Fan Header Current Capability. ............................................................................. 46
5.1.4 Power Supply Connectors....................................................................................... 46
5.2 Mechanical Considerations. ............................................................................... 47
5.2.1 Form Factor................................................................................................................... 47
5.3 Thermal Considerations....................................................................................... 48
5.4 Environmental......................................................................................................... 49
6. BIOS Support
6.1 Introduction.............................................................................................................. 51
6.2 Legacy USB Support.............................................................................................. 51
6.3 BIOS Updates. .......................................................................................................... 51
6.3.1 BIOS Recovery.............................................................................................................. 52
6.4 Boot Options............................................................................................................ 52
6.4.1 Boot Device Selection During Post...................................................................... 52
6.4.2 Power Button Menu................................................................................................... 53
6.5 Boot Options............................................................................................................ 55
6.6 BIOS Error Messages.............................................................................................. 57

4
About this guide
This user guide includes information on the following NUC SKUs:
• NUC Kit (barebones)
(Memory and M.2 module not included; Operating system not
included):
Specifications and steps to set up your NUC system.

NOTE: Memory and M.2 modules are purchased separately for this SKU.

• Technical Product Specification (TPS)
Specifies the board layout, components, connectors, power and
environmental requirements, the BIOS, and integration features.

Audience
This user guide is intended to provide detailed, technical information about
the NUC Kit and its components to the vendors, system integrators, and other
engineers and technicians who need this level of information.

5
How this guide is organized
This guide contains the following parts:
• Chapter 1: Product Specification
This chapter provides an overview of the specifications of the NUC system.
• Chapter 2: Product Introduction
This chapter provides you with the figures, layouts, physical description of
the system, and detailed features.
• Chapter 3: NUC System Setup
This chapter lists the basic setup procedures for setting up your NUC
system.
• Chapter 4: NUC Component Integration
This chapter provides you with information on how to upgrade key
components of your NUC system.
• Chapter 5: Technical references
This chapter details technical references and considerations.
• Chapter 6: BIOS Support
This chapter provides an overview of BIOS features and specifications of the
NUC system.

6
Conventions used in this guide
To highlight key information in this manual, some text are presented as follows:

IMPORTANT! This message contains vital information that must be
followed to complete a task.

NOTE: This message contains additional information and tips that can help
complete tasks.

WARNING! This message contains important information that must be
followed to keep you safe while performing certain tasks and prevent
damage to your NUC system's data and components.

Other Common Notation
# Used after a signal name to identify an active-low signal (such as
USBP0#)
GB Gigabyte (1,073,741,824 bytes)
GB/s Gigabytes per second
Gb/s Gigabits per second
KB Kilobyte (1024 bytes)
Kb Kilobit (1024 bits)
kb/s 1000 bits per second
MB Megabyte (1,048,576 bytes)
MB/s Megabytes per second
Mb Megabit (1,048,576 bits)
Mb/s Megabits per second
TDP Thermal Design Power
xxh An address or data value ending with a lowercase h indicates a
hexadecimal value.
x.x V Volts. Voltages are DC unless otherwise specified.
x.x A Amperes.

7
Production Identification Information
ASUSTeK NUC Product NUC14SRKU[X]A,B Identification Information
Product Name NUC 14 Performance
NUC14SRKU[X]A,B NUC14SRKU[X]A,B

Where to find more information
Refer to the following sources for additional information and for product and
software updates.
1. ASUS website
The ASUS website (www.asus.com) provides updated information on ASUS
hardware and software products.

8
Package contents

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9
NOTE:
• The most up-to-date and accurate product specifications are available on
www.asus.com for download.
• Product and accessory images are for illustrative purposes only. The
actual appearance and specifications may vary depending on the model.
• *The bundled power adapter may vary depending on the model and the
country (or region) of sale.
• Some bundled accessories may vary depending on the model. For details
on these accessories, refer to their respective user manuals.
• If the device or its components fail or malfunction during normal and
proper use within the warranty period, bring the warranty card to the
ASUS Service Center for replacement of the defective components.

10
1. Product Specification
1.1 Specifications
Kit SKUs
The NUC Kit is a small form factor PC barebones kit. The NUC Kit consists of
the processor, chipset, memory slots, wireless, Bluetooth, M.2 storage slots,
integrated heat sink and fan.

NOTE: RAM, storage and operating system is not included.

ASUS Project Code NUC14SRK
Product Name NUC14SRKU9B NUC14SRKU7A
Processor Intel® Core™ Ultra 9 185H Intel® Core™ Ultra 7 155H
GPU NVIDIA® GeForce RTX™ NVIDIA® GeForce RTX™
4070 4060
AC Cord US, EU, AU, UK, CN, TW, US, EU, AU, UK, CN, TW,
JP(Type A) or No Cord JP(Type A) or No Cord

11
1.2 Feature Summary
The tables below summarizes the major features of the NUC system.

10.63in. x 7.1in. x 2.6in. (270mm x 180mm x 60mm)
(including feet)
Chassis Dimensions
10.63in. x 7.1in. x 1.97in. (270mm x 180mm x 50mm)
(not including feet)
NUC 14 performance Kits NUC14SRKU[X]A,B have a
soldered-down Intel® Core™ Ultra[X]
Processor
• Intel® Core™ Ultra 9-185H processor
• Intel® Core™ Ultra 7-155H processor
Two 288-pin 1.1 V DDR5 SDRAM Small Outline Dual
Inline Memory Module (SO-DIMM) sockets
• Support for DDR5 5600 MHz SO-DIMMs
• Support for 8 Gb and 16 Gb technology
Memory • Support for up to 64 GB of system memory with
two SO-DIMMs using 32 GB memory modules
• Support for non-ECC memory
• Support for 1.1 V JEDEC memory only
2 Gb and 4 Gb memory technology (SDRAM Density) is not
supported
Integrated graphics support for processors with Intel®
Arc Graphics Technology
• One USB Type C Back panel connector up to
DP2.1 FRL
Graphics Discrete graphics support by NVIDIA GeForce RTX
4070/4060 with 8GB GDDR6 VRAM
• One Full Size High Definition Multimedia Interface
(HDMI 2.1a FRL compatible) back panel connector
• Two DisplayPort Back panel connectors
(continued on next page)

12
Audio via digital display outputs
• When using an encoded format (such as DTS-HD
MA or Dolby True HD) the system supports a
single 7.1 stream. When using an un-encoded
Audio format, the system supports 8 discrete, un-
encoded channels per HDMI port simultaneously,
for a total of 16 discrete/un-encoded channels.
Realtek Audio via a stereo microphone/headphone
3.5mm jack on the front panel
Three M.2 PCIe Gen4 connectors supporting M.2
Storage
22x80 (key type M) for NVMe only
Wireless connectivity using the Intel® Wi-Fi 6E
AX1690i wireless networking module
• 802.11ax, Concurrent Dual Band, 2x2 Wi-Fi +
Bluetooth® 5.3
• Bands 2.4, 5, 6 GHz (160MHz)
• Maximum Transfer speed up to 2.4 Gbps
• M.2 2230 Hybrid Key E form factor
Communication
Gigabit (10/100/1000/2500 Mbps) LAN subsystem
using the Intel® i226-V Gigabit Ethernet Controller
• PCIe 3.1 5GT/s support for x1 width (Lane)
• Single-port integrated multi-gigabit (up to 2.5G)
• Supports Time Sensitive Networking (TSN)
• Full wake up support
• Supports for packets up to 9.5 KB (Jumbo Frames)
(continued on next page)

13
1x Thunderbolt™ 4 port (back panel)
• 15W and 18W port bus power
- Charging capability up to 12V @ 1.5A, 5V @ 3A
and 9V @ 2A
• Thunderbolt networking
• Protocol support:
PD Modes Supported: TBT3, USB4, USB3, DP-alt/
MF
TBT3 Tx/Rx rates: 40G (2 x 20.625), 20G (2 x 10.3125)
Thunderbolt™ PCI Express Tunnel: 32 Gbps
USB4 Tx/Rx rates: 40G (2 x 20), 20G (2 x 10)
USB3 Native: 10Gbps (1 x10G)
USB3 Tunnel: 10Gbps
USB2: 480 Mpbs
DP2.1
HBR3 DisplayPort Tunneling:
Port 1: 2 streams (~35 Gbps, Thunderbolt 4 certified)
For more information about the location of the Thunderbolt™
port(s), see Rear View section.
1 x USB 4 Type C® / Thunderbolt™4 (back panel)
4xU SB 3.2 Gen 2 ports (2 front panel and 2 back
panel)
USB Ports and 2 x USB 2.0 ports (back panel)
Headers
For more information about the location of the USB ports and
headers see Rear View section.
For more information about the pinout of the USB ports and
headers see Signal Tables for the Connectors and Header section.
AC Adapter
• Ships with a 330W adapter
Power • Adapter output: 19.5VDC @ 16.9 Amps
• System Power Input 19.5VDC +/- 5% with DC
transient voltage protection
(continued on next page)

14
Operating 0-35°C external ambient operating temperature
For more information about environmental specifications see
Temperatures Environmental section.
BIOS resident in the Serial Peripheral Interface (SPI)
Flash device
BIOS Support for Advanced Configuration and Power
Interface (ACPI), Plug and Play, and System
Management BIOS (SMBIOS)
Windows® 11 Home
Windows® 11 Pro
Supported Ubuntu 24.04
Operating Systems Red Hat Enterprise Linux 9.3
For a full list of latest supported operating systems, Please visit
www.asus.com/support.
Hardware monitoring subsystem including:
• Voltage sense to detect out of range power
Hardware Monitor supply voltages
Subsystem • Thermal sense to detect out of range thermal
values
• Two fan headers

Additional Features
Chassis
No Chassis Expansion available
Expandability
CEC commands are supported on all HDMI ports for
HDMI CEC API display power on/off and the BIOS provides an option
to enable/disable the onboard CEC controls.
There is a short delay after AC power is applied
Delayed AC Start before unit is ready to power-up to protect the
system after AC loss.

15
16
2. Product Introduction
2.1 Board Layout
The illustration below shows the location of the major components on the
bottom of the motherboard.

CMOS battery BIOS Security header
M.2 2230 module connector
DDR5 SO-DIMM 0 Socket
(Key Type E) (WiFi)
M.2 2280 module connectors
DDR5 SO-DIMM 1 Socket
(Key Type M) (NVMe Only)

17
2.2 Front view

2.3 Rear view

SD card slot LAN Port

USB 3.2 Gen 2 port HDMI™ port
Headphone/Headset/
DisplayPort
Microphone jack
Power button Power input

USB 3.2 Gen 2 port Thunderbolt™ 4 port

USB 2.0 port Kensington security slot

18
Thunderbolt 4 / USB 4 (Type-C®) specifications:
Feature Details
Type-C® output support Thunderbolt 4 (40Gbps), native USB 4
(10Gbps), DP2.1
Power over Type-C® 15W; 18W
Power profiles support 12V @ 1.5A, 5V @ 3A and 9V @ 2A

2.4 Block Diagram
HDMI2.1 (FRL) DP1.4
Rear HDMI 2.1 Rear Full DP 1.4a
NVIDIA GeForce
RTX 4070/4060
Graphics DP1.4
Rear Full DP 1.4a
PCIe 4.0 x8

USB3.2 Channel A
Front USB 3.2 Gen 2x1 Type A SODIMM DDR5 5600MHz

USB3.2 Channel B
Front USB 3.2 Gen 2x1 Type A SODIMM DDR5 5600MHz

USB2.0 TCP 0 Retimer
Rear USB 2.0 Type A Rear TBT Type-C
Intel/Hayden Support UCSI
USB2.0 Bridge
Rear USB 2.0 Type A

PD controller

LAN Controller PCIe x1 Intel TCP 2
Rear USB 3.2 Gen 2x1 Type A
2.5 GbE RJ45
i226-V Core
TCP 3
Ultra 9 / Rear USB 3.2 Gen 2x1 Type A
Ultra 7
CNVi
Front Headset Audio
Codec
HDA Processor USB2.0
Jack M.2 AX411/Killer 1690i
PCIe x1

CPU Fan CPU PCIe 4.0 x4
eSPI M.2 2280
EC
Debug CPU PCIe 4.0 x4
M.2 2280

CPU PCIe 4.0 x4
M.2 2280

SPI PCIe x1 SD Card Slot
SPI Flash SD Controller
SD Express

19
2.5 Feature Descriptions
2.5.1 System Memory
ASUS NUC system Memory Information
More information about available ASUS NUC NUC14SRKU[X]A,B VA can be
found under the Specifications section.

NOTE: System is not validated for >64GB capacity due to thermal
limitations

2.5.2 Processor Graphics Subsystem
ASUS NUC14SRKU[X]A,B supports NVIDIA RTX 40 series discrete mobile
Graphics.
General Power and Memory Guidance for Optimal Graphics
Performance
ASUS NUC14SRKU[X]A,B performance is significantly impacted by power levels
and memory selection. For the best performance:
• Allow for higher system power level budgets
• Recommended DDR5-5600 128bit 2Rx8
- 128bit (Dual Channel) memory is better performing than 64bit (Single
Channel) memory
• Maximum multiple display utilization will require 2Rx32 (64GB system RAM).
Display Features
Multiple DisplayPort, USB Type-C® (Thunderbolt 4), and HDMI configurations
feature the following port designations:
• One HDMI 2.1 FRL
• Two DisplayPort DP1.4a
• One USB Type-C® (rear Thunderbolt 4)

20
2.5.3 Integrated Audio
HDMI, Thunderbolt and DP interfaces can carry audio along with video. The GPU
supports four HD audio streams over four digital ports simultaneously.
The processor supports the following audio formats:
• AC-3 Dolby Digital
• Dolby Digital Plus
• DTS-HD
• LPCM, 192 kHz/24 bit, 6 channel
• Dolby TrueHD, DTS-HD Master Audio
Discrete Audio
The integrated Realtek audio subsystem supports the following features:
• Analog line-out/Analog headphone/Analog Microphone (front panel jack)

2.5.4 SDXC Card Reader
The kit has a standard Secure Digital (SD) card reader that supports the Secure
Digital eXtended Capacity (SDXC) format, 8.0 specification with SD Express
UHS-I bus support. SD Card sizes supported: SDXC (64GB to 2TB), SDHC (4GB-
32GB), SD (2GB and less).

2.5.5 Real-Time Clock Subsystem
A coin-cell battery (CR2032) powers the real-time clock and CMOS memory.
When the computer is not plugged into a wall socket, the battery has an
estimated life of three years. When the computer is plugged in, the standby
current from the power supply extends the life of the battery. The clock is
accurate to ~13 minutes/year at 25ºC with 3.3 VSB applied via the power supply
5V STBY rail.

21
Button cell and coin battery notice
1. Remove and immediately recycle or dispose of used batteries according
to local regulations and keep out of reach of children. Do not incinerate or
dispose of batteries in household trash.
2. If ingested or inserted inside any part of the body, call a local poison control
center for treatment information. Even used batteries may cause serious
injury or death.
3. This product uses CR2032 type batteries with a nominal voltage of 3V.
4. Do not attempt to recharge non-rechargeable batteries.
5. Do not forcibly discharge, recharge, disassemble, heat above the battery
manufacturer’s specified temperature rating, or incinerate. Doing so may
result in injury or chemical burns caused by venting, leakage, or explosion.
6. When installing batteries, ensure that the polarity (+ and -) is correct.
7. Do not mix old and new batteries, or batteries of different brands or types
(such as alkaline, carbon-zinc, or rechargeable batteries).
8. Remove and immediately recycle or dispose of batteries from equipment
not used for an extended period of time according to local regulations.
9. Always completely secure the battery compartment. If the battery
compartment cannot be securely closed, stop using the product, remove
the batteries, and keep the batteries out of reach of children.

22
WARNING
• INGESTION HAZARD: This product contains a
button cell or coin battery.
• DEATH or 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.

NOTE:
• If the battery and AC power fail, date and time values will be reset and the
user will be notified during the POST.
• When the voltage drops below a certain level, the BIOS Setup program
settings stored in CMOS RAM (for example, the date and time) might not
be accurate. Replace the battery with an equivalent battery.

23
2.5.6 LAN Subsystem
RJ-45 LAN Connector with Integrated LEDs
Two LEDs are built into the RJ-45 LAN connector.

Link LED Speed LED

The table below describes the LED states when the system is powered up and
the LAN subsystem is operating.

Link LED Speed LED
Status Description Status Description
OFF No link 100 Mbps / 10 Mbps
OFF
GREEN Linked connection
BLINKING Data activity YELLOW 1 Gbps connection
GREEN 2.5 Gbps connection

Wireless Network Module
The Intel® Killer™ Wi-Fi 6E AX1690i module provides hi-speed wireless
connectivity with the following capabilities:
• Bluetooth 5.3
• Bands: 2.4, 5, 6 GHz (160MHz)
• UL and DL MU-MIMO
• OFDMA

24
2.5.7 Hardware Management Subsystem
Fan Monitoring
Fan monitoring can be implemented using ASUS Armoury Crate Software.

System States and Power States
Please refer to the table below for ACPI states supported by the processor.
State Description
G0/S0/C0 Full On: CPU operating. Individual devices may be shut to save
power. The different CPU operating levels are defined by Cx states.
GO/S0/Cx Cx State: CPU manages C-states by itself and can be in lower power
states.
G1 Suspend-To-RAM (STR): The system context is maintained in
system DRAM, but power is shut to non-critical circuits. Memory is
retained and refreshes continue. All external clocks are shut off; RTC
clock and international oscillator clocks are still toggling.
G1/S4 Suspend-To-Disk (STD): The context of the system is maintained
on the disk. All power is then shut to the system except to the logic
required to resume. Externally appears the same as S5 but may have
different wake events.
G2/S5 Soft Off: System context not maintained. All power is shut except
for the logic required to restart. A full boot is required when waking.
G3 Mechanical Off: System context not maintained. All power shut
except for the RTC. No “Wake” events are possible because the
system does not have any power. This state occurs if the user
removes the batteries, turns off a mechanical switch, or if the
system power supply is at a level that is insufficient to power the
“waking” logic.

25
Wake-up Devices and Events
Please refer to the table below for devices or specific events that can wake the
computer from specific states.
Devices/events …from this sleep Comments
that wake up the state
system…
Power switch S0iX, S4, S51
Option for monitor to remain in
RTC alarm S0iX, S4, S51
sleep state
“S5 WOL after G3” is supported;
LAN S0iX, S4, S51, 3
monitor to remain in sleep state
WIFI S0iX
Bluetooth S0iX
Wake S4, S5 controlled by BIOS
USB S0iX, S4, S51, 2, 3
option (not after G3)
Via WAKE; monitor to remain in
PCIe S0iX, S41
sleep state

NOTE:
• S0iX represents Microsoft Modern Standby
• S4 implies operating system support only.
• Will not wake from Deep S4/S5. USB S4/S5 Power is controlled by BIOS.
USB S5 wake is controlled by BIOS. USB S4 wake is controlled by OS driver,
not just BIOS option.
• Windows Fast startup will block wake from LAN and USB from S5.
• The use of these wake-up events from an ACPI state requires an operating
system that provides full ACPI support. In addition, software, drivers, and
peripherals must fully support ACPI wake events.

26
3. NUC System Setup
3.1 Installing the stand
The NUC 14 Performance system can be used in a horizontal or vertical position.
If you wish to use the NUC system in a vertical position, attach the bundled
stand onto the NUC system.

27
3.2 Connecting the display
You can connect a display panel or projector to your NUC system that has the
following connectors:
• HDMI port
• DisplayPort
• Thunderbolt 4 / USB 4 (Type-C®) port

To connect a display panel to your NUC system:
Connect one end of a HDMI, DisplayPort, or Thunderbolt 4 / USB Type-C® cable
to an external display, and the other end of the cable to your NUC system’s
HDMI port, DisplayPort, or Thunderbolt 4 / USB 4 (Type-C®) port.

28
3.3 Connecting the LAN cable
Connect a LAN cable to your NUC system for wired connection.

29
3.4 Connecting the power adapter
To connect the AC power adapter to your NUC system:
1. Connect the power cord to the AC power adapter.
2. Connect the DC power connector into your NUC system’s power (DC) input.
3. Plug the AC power adapter into a 100V~240V power source.

NOTE: The power adapter may vary in appearance, depending on the
model and the country (or region) of sale.

30
NOTE: Please refer to the following for more information on the adapter
and the system:
330W Power adapter
• Input voltage: 100-240 Vac
• Input frequency: 50-60 Hz
• Output current: 16.92 A (330.0 W) / 16.5A (330.0 W)
• Output voltage: 19.5 Vdc / 20 Vdc
• Rated for use between 0°C and 35°C (32°F and 95°F)

System
• Rated input current: 16.9 A (330.0 W) / 16.5A (330.0 W)
• Rated input voltage: 19.5 Vdc / 20 Vdc
• Operating temperature: -20˚C to 60˚C

Plug

Code US CN EU
Country United States China European Union

Plug

Code AU UK JP
Country Australia United Kingdom Japan (Type-A)

31
3.5 Powering on the system
Press the power button on your NUC system to power on the system.

32
4. NUC Component Integration
IMPORTANT! When adding or removing components to or from the
system, ensure that the system is powered off and power cables to the
system are unplugged

4.1 Opening system
1. Slide the top cover lock latch on the rear of the system to the unlocked
position.

33
2. Pull the top cover towards the rear of the system until it disengages from
the system, then lift and remove the top cover from the system.

3. Completely loosen the captive screw on the rear of the system.

Captive screw

34
4. Pull the rear plate and top shield module towards the rear of the system
until it disengages from the system.

5. Gently lift and flip the rear plate and top shield module over in the direction
shown in the illustration below.

35
4.2 DDR5 SO-DIMM Installation
1. Insert the DDR5 SO-DIMM into the SO-DIMM slot on the system board.
2. Push the DDR5 SO-DIMM down until it clicks into place.

36
4.3 M.2 module Installation
4.3.1 M.2 slot with Q-latch
1. Insert the M.2 module into the M.2 slot on the system board.
2. Rotate the Q-Latch clockwise to secure the M.2 module in place.

37
4.3.2 M.2 slot with clip
1. Flip open the clip.
2. Insert the M.2 module into the M.2 slot on the system board.
3. Close the clip to secure the M.2 module in place.

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4.4 Closing system
1. Align the rear plate and top shield module to the system chassis, then push
the rear plate and top shield module towards the front of the system. Make
sure the rear IO openings are properly aligned to the rear IO ports.

IMPORTANT! Do not remove the tape or film covering the thermal pad on
the top shield module.

39
2. Secure the rear plate and top shield module to the system chassis using the
captive screw.

Captive screw

3. Align the top cover to the system chassis, then push the top cover towards
the front of the system until the top cover latch lock clicks into the locked
position.

40
5. Technical references
5.1 Signal Tables for the Connectors
and Header
IMPORTANT! Only the following connectors and headers have overcurrent
protection:
• Rear USB Type A and USB Type-C®
• Front USB
• Internal power header
• DC Vin jack
All other connectors and headers are not overcurrent protected and
should connect only to devices inside the system's chassis, such as fans
and internal peripherals. Do not use these connectors or headers to power
devices external to the system's chassis. A fault in the load presented by the
external devices could cause damage to the computer, the power cable,
and the external devices themselves.
Furthermore, improper connection of USB header single wire connectors
may eventually overload the overcurrent protection and cause damage to
the system.

41
5.1.1 M.2 2280 Module Connector
SSD support is provided via PCIe Gen4 NVMe on CPU attached. Please see the
table below for M.2 2280 connector signals.
M.2 2280 Module (Mechanical Key M) Connector
Pin Signal Name Pin Signal Name Signal Name
3.3V (4A total for pins 74, 72, 70,
74 75 GND
18, 16, 14, 12, 4, 2 (0.5A per pin))
3.3V (4A total for pins 74, 72, 70,
72 73 GND
18, 16, 14, 12, 4, 2 (0.5A per pin))
3.3V (4A total for pins 74, 72, 70,
70 71 GND
18, 16, 14, 12, 4, 2 (0.5A per pin))
68 SUSCLK(32kHz) (O)(0/3.3V) 69 PEDET (NC-PCIe/GND-SATA)
66 Connector Key 67 N/C
64 Connector Key 65 Connector Key
62 Connector Key 63 Connector Key
60 Connector Key 61 Connector Key
58 N/C 59 Connector Key
56 N/C 57 GND
54 PEWAKE# (I/O)(0/3.3V) or N/C 55 REFCLKP
52 CLKREQ# (I/O)(0/3.3V) or N/C 53 REFCLKN
50 PERST# (O)(0/3.3V) or N/C 51 GND
48 N/C 49 PETp0
46 N/C 47 PETn0
44 N/C 45 GND
42 N/C 43 PERp0
40 N/C 41 PERn0
38 DEVSLP (O) 39 GND
36 N/C 37 PETp1
34 N/C 35 PETn1
32 N/C 33 GND
30 N/C 31 PERp1
(continued on next page)

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M.2 2280 Module (Mechanical Key M) Connector
Pin Signal Name Pin Signal Name Signal Name
28 N/C 29 PERn1
26 N/C 27 GND
24 N/C 25 PETp2
22 N/C 23 PETn2
20 N/C 21 GND
3.3V (4A total for pins 74, 72, 70,
18 19 PERp2
18, 16, 14, 12, 4, 2 (0.5A per pin))
3.3V (4A total for pins 74, 72, 70,
16 17 PERn2
18, 16, 14, 12, 4, 2 (0.5A per pin))
3.3V (4A total for pins 74, 72, 70,
14 15 GND
18, 16, 14, 12, 4, 2 (0.5A per pin))
3.3V (4A total for pins 74, 72, 70,
12 13 PETp3
18, 16, 14, 12, 4, 2 (0.5A per pin))
10 DAS/DSS# (I/O)/LED1# (I)(0/3.3V) 11 PETn3
8 PLN 9 GND
6 N/C 7 PERp3
3.3V (4A total for pins 74, 72, 70,
4 5 PERn3
18, 16, 14, 12, 4, 2 (0.5A per pin))
3.3V (4A total for pins 74, 72, 70,
2 3 GND
18, 16, 14, 12, 4, 2 (0.5A per pin))
1 GND

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5.1.2 BIOS Security Jumper
WARNING! Do not move a jumper with the power on. Always turn off the
power and unplug the power cord from the computer before changing a
jumper setting. Otherwise, the system could be damaged.

The illustration below shows the location of the BIOS security jumper. The 3-pin
jumper determines the BIOS Security program’s mode.

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BIOS Security Jumper Settings
Please refer to the table below for jumper settings for the three modes: normal,
lockdown, and configuration.
Function / Jumper Configuration
Mode Setting
The BIOS uses current configuration information and
Normal 1-2
passwords for booting.
The BIOS uses current configuration information and
passwords for booting, except:
• All POST Hotkeys are suppressed (prompts are not
displayed and keys are not accepted. For example,
Lockdown 2-3 F2 for Setup, F10 for the Boot Menu).
• Power Button Menu is not available (see Power
Button Menu section).
BIOS updates are not available except for automatic
Recovery due to flash corruption.
BIOS Recovery Update process if a matching *.bio file
is found. Recovery Update can be canceled by pressing
the Esc key.
If the Recovery Update was canceled or a matching
*.bio file was not found, a Config Menu will be
displayed. The Config Menu consists of the following
(followed by the Power Button Menu selections):
[1] Suppress this menu until the BIOS Security
Jumper is replaced.
Configuration None [2] Clear BIOS User and Supervisor Passwords.
[3] Reset Intel® AMT to default factory settings.
[4] Clear Trusted Platform Module.

Warning! Data encrypted with the TPM will no
longer be accessible if the TPM is cleared.

[F2] Visual BIOS.
[F4] BIOS Recovery.
See Power Button Menu section.

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5.1.3 Fan Header Current Capability
The table below lists the current capability of the fan headers.
Fan Header Maximum Available Current
Processor fan 1A

5.1.4 Power Supply Connectors
The system has the following power supply connectors:
• External Power Supply - the kit can be powered through a 19.5v DC
connector on the back panel. The back-panel DC connector is compatible
with a 7.4mm/OD and 5.0mm/ID plug, where the inner 0.8mm contact is
+19.5V DC (±5%) and the shell is GND.

NOTE: External power voltage, 19.5 V DC (±5%), is dependent on the type
of power adapter used.

46
5.2 Mechanical Considerations
5.2.1 Form Factor
The illustration below shows the mechanical form factor for the system.
Dimensions are given in inches (millimeters). The outer dimensions are 10.63in.
x 7.1in. x 1.97in. (270mm x 180mm x 50mm) (not including feet).
10.63in. (270mm)

7.1in. (180mm)
1.97in. (50mm)

47
5.3 Thermal Considerations
IMPORTANT!
• Failure to ensure appropriate airflow may result in reduced performance
of both the processor and/or voltage regulator or, in some instances,
damage to the system.
All responsibility for determining the adequacy of any thermal or
system design remains solely with the system integrator. ASUS makes
no warranties or representations that merely following the instructions
presented in this document will result in a system with adequate thermal
performance.
• Ensure that the ambient temperature does not exceed the system’s
maximum operating temperature. Failure to do so could cause
components to exceed their maximum case temperature and
malfunction. For information about the maximum operating temperature,
see the environmental specifications in Environmental section.
• Ensure that proper airflow is maintained in the processor voltage
regulator circuit. Failure to do so may result in shorter than expected
product lifetime.

48
5.4 Environmental
The table below lists the environmental specifications for the system.

IMPORTANT! If the external ambient temperature exceeds 35°C, further
thermal testing is required to ensure components do not exceed their
maximum operating temperature.

Parameter Specification
Temperature
Sustained Storage Limits
-20°C to +40°C
(i.e. warehouse)
Short Duration Limits
-40°C to +60°C
(i.e. shipping)
Ambient Operating -
0°C to +35°C
NUC Kit*
* Processor performance may automatically decrease when the system operates in the top 5°C of
the ambient operating temperature ranges above.
Shock (System)
50 g trapezoidal waveform
Unpackaged
Velocity change of 170 inches/s²
Free fall package drop machine set to the height
determined by the weight of the package.
Non-palletized Palletized drop
Product Weight
Product drop heights (single
(pounds)
height (inches) product) (inches)
Packaged <20 36 N/A
21-40 30 N/A
41-80 24 N/A
81-100 18 12
100-120 12 9
(continued on next page)

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Parameter Specification
Shock (System)
Random profile 5 Hz @ 0.001 g^2/Hz to 20 Hz @ 0.01
g^2/Hz (slope up)
Unpackaged/Packaged
20 Hz to 500Hz @ 0.01 g^2/Hz (flat)
Input acceleration is 2.20gRMS

NOTE:
• The operating temperature of the system may be determined by
measuring the air temperature from the junction of the heatsink fins and
fan, next to the attachment screw, in a closed chassis, while the system is
in operation.
• Before attempting to operate this system, the overall temperature of the
system must be above the minimum operating temperature specified.
It is recommended that the system temperature be at least room
temperature before attempting to power on the system. The operating
and non-operating environment must avoid condensing humidity.

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6. BIOS Support
6.1 Introduction
The system uses an AMI BIOS core that is stored in the Serial Peripheral Interface
Flash Memory (SPI Flash) and can be updated through multiple methods (see
BIOS Updates section). The SPI Flash contains the BIOS Setup program, POST,
the PCI auto-configuration utility, LAN EEPROM information, and Plug and Play
support. The SPI Flash includes a 32 MB flash memory device.
The BIOS Setup program can be used to view and change the identification
information and the BIOS settings for the system. The BIOS Setup program is
accessed by pressing <F2> after the POST memory test beings and before the
operating system boots.

6.2 Legacy USB Support
Legacy USB support enables the USB devices to be used even when the
operating system’s USB drivers are not yet available. Legacy USB support is
used to access the BIOS setup program and to install an operating system that
supports USB. By default, Legacy USB support is set to Enabled.
To install an operating system that supports USB, verify that Legacy USB
support in the BIOS Setup program is set to Enabled and follow the operating
system’s installation instructions.

6.3 BIOS Updates
The BIOS can be updated using one of the following methods:
• Express BIOS (Windows-based) Update
• F7 Update
• Power Button Menu Update
• iFlash Update
• UEFI Shell Update

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6.3.1 BIOS Recovery
It is unlikely that anything will interrupt a BIOS update; however, if an
interruption occurs the BIOS could be unstable. The table below lists the drives
and media types that can be used for BIOS recovery. The BIOS recovery media
does not need to be made bootable.
Media Type Can be used for BIOS recovery?
Hard disk drive (connected to USB) Yes
USB flash drive Yes
NVME SSD (M.2 interface) Yes

NOTE: Supported file systems for BIOS recovery: NTFS (sparse, compressed,
or encrypted files are not supported), FAT32, EXT.

6.4 Boot Options
In the BIOS Setup program, the user can choose to boot from a hard drive,
removable driver, or the network. The default setting is for the hard drive to be
the first boot device, the removable drive second, and the network third.

NOTE: The network can be selected as a boot device. This selection allows
booting from the onboard LAN or a network add-in card with a remote
boot ROM installed. Pressing the <F12> key during POST automatically
forces booting from the LAN. To use this key during POST, the User Access
Level in the BIOS Setup program’s Security menu must be set to Full.

6.4.1 Boot Device Selection During Post
Pressing the <F10> key during POST causes a boot device menu to be
displayed. The menu displays the list of available boot devices.

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6.4.2 Power Button Menu
As an alternative to Configuration Mode or normal POST hotkeys, the user can
use the power button to access a menu with BIOS and boot options. The Power
Button Menu is accessible via the following sequence:
1. System is in S4/S5 (not G3).
2. User pushes the power button and holds it down for 3 seconds.
3. The Front Panel Power Button LED will be on for the first 3 seconds. After 3
seconds, the LED will begin to blink in the following pattern: 0.25 seconds
off, 0.25 seconds on, 0.25 seconds off to signal the user to release the power
button.
4. User releases the power button before the 4-second shutdown override.
If this boot path is taken, the BIOS will use default settings, ignoring settings
in VPD where possible. At the point where Setup Entry/Boot would be in the
normal boot path, the BIOS will display the following prompt and wait for a
keystroke:
If an unrecognized key is hit, then the BIOS will do nothing and wait for another
keystroke. If one of the listed hotkeys is hit, the BIOS will follow the indicated
boot path. Password requirements must still be honored.
Power Button Menu Options
Keystroke Option Description
[ESC] Normal Boot -
[F2] BIOS Setup Menu -

NOTE: Will only be displayed if at least
[F3] Disable Fast Boot
one Fast Boot optimization is enabled.

(continued on next page)

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Power Button Menu Options
Keystroke Option Description
The BIOS will search for a matching .CAP file
from the \EFI folder in the supported media
with the supported file system. If a matching
recovery capsule is found, the BIOS will display
the following:
BIOS will Recover to <BIOSID> in 20 seconds.
[F4] BIOS Recovery [ESC] Cancel Recovery
Recovery will proceed if not canceled via the ESC
key within 20 seconds. The BIOS shall display
the recovery progress. If a BIOS .CAP file was not
detected (or the BIOS Recovery was canceled)
then the BIOS will reset the system and continue
normally to POST.
The BIOS will restore the current setup settings
Restore BIOS and the current defaults to the build time
[F5]
Settings defaults in the case of a boot issue caused by
setup variable changes.
BIOS Update during the BDS phrase. The BIOS
will update independent of any OS loading and
[F7] Update BIOS provides a menu UI accessible during boot up.
This is not a recovery tool and will not overwrite
a corrupt BIOS or ME firmware.

Remote NOTE: Will only be displayed if Remote
[F9]
Assistance Assistance is supported.

[F10] Enter Boot Menu -
[F12] Network Boot -

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6.5 Boot Options
The BIOS includes security features that restrict access to the BIOS Setup
program and who can boot the computer. A Supervisor and User password
can be set for the BIOS Setup program and for booting the computer, with the
following restrictions:
• The Supervisor password gives unrestricted access to view and change all
the Setup options in the BIOS Setup program. This is Supervisor Mode.
• The User password gives restricted access to view and change Setup options
in the BIOS Setup program. This is User Mode.
• If only the Supervisor password is set, pressing the <Enter> key at the
password prompt of the BIOS Setup program allows the user restricted
access to Setup.
• If both the Supervisor and User passwords are set, users can enter either the
Supervisor or User password to access Setup. Users have access to Setup
regardless to which password is used.
• Setting the User password restricts who can boot the computer. The
password prompt will be displayed before the computer boots. If only
the Supervisor password is set, the computer boots without asking for a
password. If both passwords are set, the user can enter either password to
boot the computer.
• For enhanced security, use different passwords for the Supervisor and User
passwords.
• Valid password characters are A-Z, a-z, 0-9, and special characters. Passwords
may be up to 20 characters in length.
• To clear a set password, enter a blank password after entering the existing
password.

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The table below shows the effects of setting the Supervisor password and User
password. This table is for reference only and is not displayed on the screen.
Password Supervisor Supervisor
Neither User only
Set only and User set
Any user can Can change
Supervisor Can change
change all N/A all
Mode all options
options options
Can change Can change
Any user can
a limited Can change all a limited
User Mode change all
number of options number of
options
options options
Enter Supervisor
Setup Supervisor Password Password
None
Options Password Clear User Enter
Password Password
Password
Supervisor or
to Enter None Supervisor User
User
Setup
Password
Supervisor or
During None None User
User
Boot

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6.6 BIOS Error Messages
Error Message Explanation
The battery may be losing power. Replace the
CMOS Battery Failure
battery soon.
The CMOS checksum is incorrect. CMOS memory
CMOS Checksum Error may have been corrupted. Run Setup to reset
values.
Memory size has decreased since the last boot. If
Memory Size Decreased no memory was removed, then the memory may
be bad.
The battery may be losing power. Replace the
CMOS Timer Not Set
battery soon.
Processor Thermal Trip Processor overheated.
The system triggers RTC clear to recover the system
Auto RTC Reset back to the normal condition from consecutive
boot failure.

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