Page 3
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 The Lithium battery adopted on this motherboard contains Perchlorate, a toxic substance controlled in Perchlorate Best Management Practices (BMP) regulations passed by the California Legislature.
Page 4
*15G062470000AK* P/N: 15G062470000AK V1.0 Button Battery Safety Notice Button Battery Safety Notice 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.
If you require technical support related to this motherboard, please visit our website for specific 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)
1.2 Specifications Form NUC (4.09-in x 4.02-in x 1.5-in, 10.4 cm x 10.2 cm x 3.8 Dimensions Factor Intel® Core™ Ultra processors (Meteor Lake-H/U) NUC-155H (6P+8E) Processor NUC-125H (4P+8E) System Chipset BIOS AMI SPI 256 Mbit Technology Dual Channel DDR5 5600 MHz...
Page 10
NUC-155H_NUC-125H Security Intel® PTT Watchdog Output From Super I/O to drag RESETCON# Timer Interval 256 Segments, 0, 1, 2, ...255 Sec Input PWR 12V~24V DC-In Jack AT/ATX Supported Power - AT : Directly PWR on as power input ready Requirements Power On - ATX : Press button to PWR on after power input ready...
1.4 I/O Panel Front I/O : Rear I/O : Power Button (PWR_BTN1) RJ-45 LAN Port (LAN1)* USB 3.2 Gen2x2/DP Type-C Port RJ-45 LAN Port (LAN2)* (TC_U3D_1) HDMI Port (HDMI1) USB4/Thunderbolt™ 4 Type-C Port HDMI Port (HDMI2) (TC_TB_0) 10 USB 3.2 Gen2 Port (USB3_1) USB 3.2 Gen2 Port (USB3T_2) 11 USB 3.2 Gen2 Port (USB3_2) Combo Audio Jack (AUDIO1)
NUC-155H_NUC-125H 1.5 Block Diagram NUC-155H NUC-125H HDMI SO-DIMM Channel A Connector (A1) DDR5 5600MHz SO-DIMM HDMI Channel B DDR5 5600MHz (B1) Connector 2 x USB 3.2 Gen2 2 x USB 3.2 Gen2 2 x USB 2.0 Type-A SATA SATA3 RJ45 Intel MDI 2.5G...
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 configuration of your chassis to ensure that the motherboard fits into it. Make sure to unplug the power cord before installing or removing the motherboard.
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.
2.4 Expansion Slots There 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-E Socket M.2 Key-M Socket M.2 Key-M Socket...
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 Signal Name (SATA3_0) SATA_A+...
Page 19
PWRBTN (Power Switch): Connect to the power switch on the chassis front panel. You may configure the way to turn off 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.
Page 20
NUC-155H_NUC-125H Back Side : Fan Connector Signal Name (4-pin FAN1) (see p. 5, No. 8) FAN_SPEED FAN_SPEED_CONTROL Battery Connector Signal Name BAT1 +BAT (2-pin BAT1) (see p. 5, No. 9) ESPI Connector Signal Name (20-pin ESPI1) ESPI_CLK (see p. 5, No. 10) ESPI_CS# ESPI_RESET# SMB_CLK...
Chapter 3 UEFI SETUP UTILITY 3.1 Introduction ASRock Industrial UEFI (Unified Extensible Firmware Interface) is a BIOS utility which offers tweak-friendly options in an advanced viewing interface. The UEFI system works with a USB mouse and offers users a faster, sleeker experience.
NUC-155H_NUC-125H 3.1.2 UEFI Menu Bar The top of the screen has a menu bar with the following selections: Main For setting system time/date information For advanced system configurations Advanced H/W Monitor Displays current hardware status Security For security settings Boot For configuring boot settings and boot priority Exit Exit the current screen or the UEFI Setup Utility...
3.1.3 Navigation Keys Use < > key or < > key to choose among the selections on the menu bar, and use < > key or < > key to move the cursor up or down to select items, then press <Enter> to get into the sub screen.
NUC-155H_NUC-125H 3.2 Main Screen (Advanced Mode) When you enter the UEFI SETUP UTILITY, the Main screen will appear and display the system overview. Because the UEFI software is constantly being updated, the following UEFI setup screens and descriptions are for reference purpose only, and they may not exactly match what you see on your screen.
3.3 Advanced Screen I n t h i s s ec t ion, you may s et t he con f ig u r at ions for t he fol low i ng items: CPU Configuration, Chipset Configuration, Storage Configuration, Super IO Configuration, AMT Configuration, ACPI Configuration, USB Configuration, Power Configuration and Trusted Computing.
NUC-155H_NUC-125H 3.3.1 CPU Configuration Intel Hyper Threading Technology Intel Hyper Threading Technology allows multiple threads to run on each core, so that the overall performance on threaded software is improved. Configuration options: [Enabled] [Disabled] Active Processor P-Cores This allows you to select the number of cores to enable in each processor package. Active Processor E-Cores This allows you to select the number of E-Cores to enable in each processor package.
Page 27
Enhanced Halt State (C1E) The option allows you to enable Enhanced Halt State (C1E) for lower power consumption. Configuration options: [Enabled] [Disabled] Package C State Support The option allows you to enable CPU, PCIe, Memory, Graphics C State Support for power saving.
Page 28
NUC-155H_NUC-125H Intel Turbo Boost Technology Intel Turbo Boost Technology enables the processor to run above its base operating frequency when the operating system requests the highest performance state. The default value is [Enabled]. Configuration options: [Enabled] [Disabled] CPU Thermal Throttling CPU Thermal Throttling allows you to enable CPU internal thermal control mechanisms to keep the CPU from overheating.
3.3.2 Chipset Configuration VT-d Intel® Virtualization Technology for Directed I/O helps your virtual machine monitor better utilize hardware by improving application compatibility and reliability, and providing additional levels of manageability, security, isolation, and I/O performance. Configuration options: [Enabled] [Disabled] Re-Size BAR Support If system has Resizable BAR capable PCIe Devices, this option enables or disables Resizable BAR Support.
Page 30
NUC-155H_NUC-125H Share Memory Share memory allows you to configure the size of memory that is allocated to the integrated graphics processor when the system boots up. Configuration options: [Auto] [32M] [64M] [128M] [256M] [512M] Options vary depending on the memory you use on your motherboard. Render Standby Power down the render unit when the GPU is idle for lower power consumption.
Page 31
Restore on AC/Power Loss The option allows you to select the power state after a power failure. [Power Off] sets the power to remain off when the power recovers. [Power On] sets the system to start to boot up when the power recovers.
NUC-155H_NUC-125H 3.3.3 Storage Configuration VMD Configuration Press [Enter] to view the followings items for VMD configurations. SATA Controller(s) The option allows you to enable or disable the SATA controllers. Configuration options: [Enabled] [Disabled] SATA Mode Selection AHCI supports new features that improve performance. Configuration option: [AHCI] AHCI (Advanced Host Controller Interface) supports NCQ and other new features that will improve SATA disk performance.
Page 33
Hard Disk S.M.A.R.T. S.M.A.R.T stands for Self-Monitoring, Analysis, and Reporting Technology. It is a moni- toring system for computer hard disk drives to detect and report on various indicators of reliability. Configuration options: [Enabled] [Disabled]...
3.3.5 AMT Configuration USB Provisioning of AMT Use this to enable or disable AMT USB Provisioning. The default is [Disabled]. MAC Pass Through The option enables or disables MAC Pass Through function. Dynamic Lan Switch This allows switching AMT support from Integrated LAN to Discrete LAN. Activate Remote Assistance Process Trigger CIRA boot.
Page 36
NUC-155H_NUC-125H One Click Recovery(OCR) Configuration Configuration setting for One Click Recovery. This allows access for AMT to boot a recov- ery OS application MEBx This Formset contains forms for configuring MEBx.
3.3.6 ACPI Configuration Onboard LAN Power On Use this item to enable or disable onboard LAN to turn on the system from the power-soft- off mode. Configuration options: [Enabled] [Disabled] RTC Alarm Power On RTC Alarm Power On allows the system to be waked up by the real time clock alarm. Set it to By OS to let it be handled by your operating system.
NUC-155H_NUC-125H 3.3.7 USB Configuration USB Power Control Use this option to control USB power. Configuration options: [Always Enabled] [Default Setting]...
NUC-155H_NUC-125H 3.3.9 Trusted Computing NOTE: Options vary depending on the version of your connected TPM module. Security Device Support Security Device Support allows you to enable or disable BIOS support for security device. O.S. will not show Security Device. TCG EFI protocol and INT1A interface will not be available.
Page 41
SM3_256 PCR Bank SM3_256 PCR Bank allows you to enable or disable SM3_256 PCR Bank. Configuration options: [Enabled] [Disabled] Pending Operation Pending Operation allows you to schedule an Operation for the Security Device. NOTE: Your computer will reboot during restart in order to change State of the Device. Configuration options: [None] [TPM Clear] Platform Hierarchy This item allows you to enable or disable Platform Hierarchy.
NUC-155H_NUC-125H 3.4 Hardware Health Event Monitoring Screen This section allows you to monitor the status of the hardware on your system, including the parameters of the CPU temperature, motherboard temperature, fan speed, and the critical voltage. NOTE: Options vary depending on the features of your motherboard. Fan1 Setting This allows you to set FAN1’s speed.
3.5 Security Screen In this section you may set or change the supervisor/user password for the system. You may also clear the user password. Supervisor Password Set or change the password for the administrator account. Only the administrator has the authority to change the settings in the UEFI Setup Utility.
NUC-155H_NUC-125H 3.6 Boot Screen This section displays the available devices on your system for you to configure the boot settings and the boot priority. Boot From Onboard LAN The item allows the system to be waked up by the onboard LAN. Configuration options: [Enabled] [Disabled] Setup Prompt Timeout The item allows you to...
3.7 Exit Screen Save Changes and Exit When you select this option, the following message “Save configuration changes and exit setup?” will pop out. Select [Yes] to save the changes and exit the UEFI SETUP UTILITY. Discard Changes and Exit When you select this option, the following message “Discard changes and exit setup?”...
Need help?
Do you have a question about the NUC-155H and is the answer not in the manual?
Questions and answers