Version 1.0 Published June 2020 Copyright©2020 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.
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 : +886-2-28965588 ext.
CE Warning This device complies with directive 2014/53/EU issued by the Commision of the European Community. This equipment complies with EU radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. Operations in the 5.15-5.35GHz band are restricted to indoor usage only. Radio transmit power per transceiver type Function WiFi Frequency Maximum Output Power (EIRP) 2400-2483.
Contents Chapter 1 Introduction 1 1.1 Package Contents 1 1.2 Specifications 2 1.3 Motherboard Layout 7 1.4 I/O Panel 9 1.5 WiFi-802.11ac Module and ASRock WiFi 2.4/5 GHz Antennas 11 Chapter 2 Installation 13 2.1 Installing the CPU 14 2.2 Installing the CPU Fan and Heatsink 16 2.3 Installing Memory Modules (DIMM) 24 2.4 Expansion Slot (PCI Express Slot) 26 2.5 Jumpers Setup 27 2.6 Onboard Headers and Connectors 28 2.7 M.
3.3.3 BIOS & Drivers 43 3.3.4 Setting 44 3.4 45 ASRock Polychrome SYNC Chapter 4 UEFI SETUP UTILITY 48 4.1 Introduction 48 4.1.1 UEFI Menu Bar 48 4.1.2 Navigation Keys 49 4.2 Main Screen 50 4.3 OC Tweaker Screen 51 4.4 Advanced Screen 55 4.4.1 CPU Configuration 56 4.4.2 Onboard Devices Configuration 57 4.4.3 Storage Configuration 59 4.4.4 ACPI Configuration 60 4.4.5 Trusted Computing 61 4.4.6 AMD PBS 62 4.4.7 AMD CBS 63 4.5 Tools 64 4.
B550M-ITX/ac Chapter 1 Introduction Thank you for purchasing ASRock B550M-ITX/ac 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. In this documentation, Chapter 1 and 2 contains the introduction of the motherboard and step-by-step installation guides. Chapter 3 contains the operation guide of the software and utilities.
1.2 Specifications Platform CPU Chipset Memory English 2 • Mini-ITX Form Factor • Solid Capacitor design • Supports 3rd Gen AMD AM4 Ryzen™ / future AMD Ryzen™ Processors (3000 and 4000 Series Processors)* * Not compatible with AMD Ryzen™ 5 3400G and Ryzen™ 3 3200G.
B550M-ITX/ac Expansion Slot AMD Ryzen series CPUs (Matisse) • 1 x PCI Express 4.0 x16 Slot (PCIE1: x16 mode)** AMD Ryzen series APUs (Renoir) • 1 x PCI Express 3.0 x16 Slot (PCIE1: x16 mode)** * Supports PCIe riser cards to extend x8/x8 slots ** Supports NVMe SSD as boot disks • 1 x Vertical M.2 Socket (Key E) with the bundled WiFi802.11ac module (on the rear I/O) Audio • Integrated AMD RadeonTM Vega Series Graphics in Ryzen Series APU* * Actual support may vary by CPU • DirectX 12, Pixel Shader 5.
English 4 LAN • PCIE x1 Gigabit LAN 10/100/1000 Mb/s • Realtek RTL8111H • Supports Wake-On-LAN • Supports Lightning/ESD Protection • Supports Energy Efficient Ethernet 802.3az • Supports PXE Wireless LAN • • • • • Rear Panel I/O • • • • • • • • Intel® 802.11ac WiFi Module Supports IEEE 802.11a/b/g/n/ac Supports Dual-Band (2.4/5 GHz) Supports high speed wireless connections up to 433Mbps Supports Bluetooth 4.
B550M-ITX/ac • 2 x Chassis/Water Pump Fan Connectors (4-pin) (Smart Fan Speed Control) * The Chassis/Water Pump Fan supports the water cooler fan of maximum 2A (24W) fan power. * CHA_FAN1/WP and CHA_FAN2/WP can auto detect if 3-pin or 4-pin fan is in use. • 1 x 24 pin ATX Power Connector • 1 x 8 pin 12V Power Connector • 1 x Front Panel Audio Connector • 1 x USB 2.0 Header (Supports 2 USB 2.0 ports) (Supports ESD Protection) • 1 x USB 3.2 Gen1 Header (Supports 2 USB 3.
Please realize that there is a certain risk involved with overclocking, including adjusting the setting in the BIOS, applying Untied Overclocking Technology, or using third-party overclocking tools. Overclocking may affect your system’s stability, or even cause damage to the components and devices of your system. It should be done at your own risk and expense. We are not responsible for possible damage caused by overclocking.
B550M-ITX/ac 1.3 Motherboard Layout 1 3 2 5 4 BAT1 1 1 ATXPWR1 SATA3_1_3 7 8 USB3_4_5 RJ-45 LAN 1 RoHS 1 USB_3_4 HDLED RESET PANEL1 M2_1 PLED PWRBTN Center: FRONT Top: LINE IN Bottom: MIC IN HD_AUDIO1 9 10 AMD B550 M2_WIFI1 1 6 SATA3_2_4 SOCKET AM4 USB 2.0 T: USB1 B: USB2 PS2 Keyboard /Mouse USB 3.2 Gen1 T: USB3_3 B: USB3_TC_1 DDR4_B1 (64 bit, 288-pin module) ATX12V1 DDR4_A1 (64 bit, 288-pin module) DP1 CHA_FAN1 /WP 16 USB 3.
No. English 8 Description 1 CPU Fan Connector (CPU_FAN1) 2 Addressable LED Header (ADDR_LED1) 3 RGB LED Header (RGB_LED1) 4 Chassis/Water Pump Fan Connector (CHA_FAN1/WP) 5 2 x 288-pin DDR4 DIMM Slots (DDR4_A1, DDR4_B1) 6 ATX Power Connector (ATXPWR1) 7 SATA3 Connectors (SATA3_1_3) 8 SATA3 Connectors (SATA3_2_4) 9 USB 3.2 Gen1 Header (USB3_4_5) 10 System Panel Header (PANEL1) 11 USB 2.
B550M-ITX/ac 1.4 I/O Panel 11 10 1 2 3 4 9 7 6 12 5 8 No. Description No. Description 1 USB 2.0 Ports (USB_12)* 7 USB 3.2 Gen1 Type-A Port (USB3_3) 2 LAN RJ-45 Port** 8 USB 3.2 Gen1 Type-C Port (USB3_TC_1) 3 Line In (Light Blue)*** 9 PS/2 Mouse/Keyboard Port 4 Front Speaker (Lime)*** 10 USB 3.2 Gen1 Type-A Port (USB3_1_2) 5 Antenna Ports 11 DisplayPort 1.
*** Function of the Audio Ports in 7.
B550M-ITX/ac 1.5 WiFi-802.11ac Module and ASRock WiFi 2.4/5 GHz Antennas WiFi-802.11ac + BT Module English This motherboard comes with an exclusive WiFi 802.11 a/b/g/n/ac + BT v4.2 module (pre-installed on the rear I/O panel) that offers support for WiFi 802.11 a/b/g/n/ ac connectivity standards and Bluetooth v4.2. WiFi + BT module is an easy-to-use wireless local area network (WLAN) adapter to support WiFi + BT. Bluetooth v4.
WiFi Antennas Installation Guide Step 1 Prepare the WiFi 2.4/5 GHz Antennas that come with the package. Step 2 Connect the two WiFi 2.4/5 GHz Antennas to the antenna connectors. Turn the antenna clockwise until it is securely connected. Step 3 Set the WiFi 2.4/5 GHz Antenna as shown in the illustration. *You may need to adjust the direction of the antenna for a stronger signal.
B550M-ITX/ac Chapter 2 Installation This is a Mini-ITX form factor motherboard. Before you install the motherboard, study the configuration of your chassis to ensure that the motherboard fits into it. Pre-installation Precautions Take note of the following precautions before you install motherboard components or change any motherboard settings. English • Make sure to unplug the power cord before installing or removing the motherboard.
2.1 Installing the CPU Unplug all power cables before installing the CPU.
B550M-ITX/ac English 3 15
2.2 Installing the CPU Fan and Heatsink After you install the CPU into this motherboard, it is necessary to install a larger heatsink and cooling fan to dissipate heat. You also need to spray thermal grease between the CPU and the heatsink to improve heat dissipation. Make sure that the CPU and the heatsink are securely fastened and in good contact with each other. Please turn off the power or remove the power cord before changing a CPU or heatsink.
B550M-ITX/ac 3 CP U_ FA N1 English 4 17
Installing the AM4 Box Cooler SR2 1 2 English 18
B550M-ITX/ac English 3 19
CP U_ FA N 1 4 *The diagrams shown here are for reference only. The headers might be in a different position on your motherboard.
B550M-ITX/ac Installing the AM4 Box Cooler SR3 1 English 2 21
3 4 English 22
B550M-ITX/ac CP U_ FA N1 5 CP U_ FA N 1 6 RG B _L ED 2 *The diagrams shown here are for reference only. The headers might be in a different position on your motherboard.
2.3 Installing Memory Modules (DIMM) This motherboard provides two 288-pin DDR4 (Double Data Rate 4) DIMM slots, and supports Dual Channel Memory Technology. 1. For dual channel configuration, you always need to install identical (the same brand, speed, size and chip-type) DDR4 DIMM pairs. 2. It is unable to activate Dual Channel Memory Technology with only one memory module installed. 3.
B550M-ITX/ac The DIMM only fits in one correct orientation. It will cause permanent damage to the motherboard and the DIMM if you force the DIMM into the slot at incorrect orientation.
2.4 Expansion Slot (PCI Express Slot) There is 1 PCI Express slot on the motherboard. Before installing an expansion card, please make sure that the power supply is switched off or the power cord is unplugged. Please read the documentation of the expansion card and make necessary hardware settings for the card before you start the installation. PCIe slots: PCIE1 (PCIe 4.0 x16 slot) is used for PCI Express x16 lane width graphics cards.
B550M-ITX/ac 2.5 Jumpers Setup The illustration shows how jumpers are setup. When the jumper cap is placed on the pins, the jumper is “Short”. If no jumper cap is placed on the pins, the jumper is “Open”. Clear CMOS Jumper (CLRCMOS1) (see p.7, No. 12) 2-pin Jumper Short: Clear CMOS Open: Default English CLRCMOS1 allows you to clear the data in CMOS. The data in CMOS includes system setup information such as system password, date, time, and system setup parameters.
2.6 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 permanent damage to the motherboard. System Panel Header (9-pin PANEL1) (see p.7, No. 10) GND GND RESET# GND PWRBTN# HDLED- PLEDPLED+ HDLED+ 1 Connect the power button, reset button and system status indicator on the chassis to this header according to the pin assignments below.
USB 2.0 Headers (9-pin USB_3_4) (see p.7, No. 11) SATA3_2 SATA3_1 Serial ATA3 Connectors (SATA3_1_3: see p.7, No. 7) (SATA3_2_4: see p.7, No. 8) SATA3_4 SATA3_3 B550M-ITX/ac DUMMY GND GND P+ P+ P- P- USB_PWR USB_PWR 1 USB 3.2 Gen1 Header (19-pin USB3_4_5) (see p.7, No.
Chassis Water Pump Fan Connectors (4-pin CHA_FAN1/WP) (see p.7, No. 4) 4 3 2 1 FAN_SPEED_CONTROL CHA_FAN_SPEED FAN_VOLTAGE GND (4-pin CHA_FAN2/WP) (see p.7, No. 13) CPU Fan Connector (4-pin CPU_FAN1) (see p.7, No. 1) 1 2 3 4 GND FAN_VOLTAGE CHA_FAN_SPEED FAN_SPEED_CONTROL 4 3 2 1 GND FAN_VOLTAGE CPU_FAN_SPEED FAN_SPEED_CONTROL ATX Power Connector (24-pin ATXPWR1) (see p.7, No. 6) ATX 12V Power Connector (8-pin ATX12V1) (see p.7, No.
B550M-ITX/ac 1 12V G R B (see p.7, No. 3) Addressable LED Header (3-pin ADDR_LED1) (see p.7, No. 2) RGB header is used to connect RGB LED extension cable which allows users to choose from various LED lighting effects. Caution: Never install the RGB LED cable in the wrong orientation; otherwise, the cable may be damaged. * Please refer to page 45 for further instructions on this header.
2.7 M.2_SSD (NGFF) Module Installation Guide (M2_1) The M.2, also known as the Next Generation Form Factor (NGFF), is a small size and versatile card edge connector that aims to replace mPCIe and mSATA. The Hyper M.2 Socket (M2_1) supports M Key type 2280 M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up to Gen4x4 (64 Gb/s) (with Matisse) or Gen3x4 (32 Gb/s) (with Renoir). Installing the M.2_SSD (NGFF) Module Step 1 Prepare a M.2_SSD (NGFF) module and the screw.
B550M-ITX/ac 1 Step 3 Before installing a M.2 (NGFF) SSD module, please loosen the screws to remove the M.2 heatsink. *Please remove the protective films on the bottom side of the M.2 heatsink before you install a M.2 SSD module. 1 2 Step 4 Align and gently insert the M.2 (NGFF) SSD module into the M.2 slot. Please be aware that the M.2 (NGFF) SSD module only fits in one orientation. A A 20o Step 5 NUT2 English Tighten the screw with a screwdriver to secure the module into place.
M.
B550M-ITX/ac Chapter 3 Software and Utilities Operation 3.1 Installing Drivers The Support CD that comes with the motherboard contains necessary drivers and useful utilities that enhance the motherboard’s features. Running The Support CD To begin using the support CD, insert the CD into your CD-ROM drive. The CD automatically displays the Main Menu if “AUTORUN” is enabled in your computer. If the Main Menu does not appear automatically, locate and double click on the file “ASRSETUP.
3.2 ASRock Motherboard Utility (A-Tuning) ASRock Motherboard Utility (A-Tuning) is ASRock’s multi purpose software suite with a new interface, more new features and improved utilities. 3.2.1 Installing ASRock Motherboard Utility (A-Tuning) ASRock Motherboard Utility (A-Tuning) can be downloaded from ASRock Live Update & APP Shop. After the installation, you will find the icon “ASRock Motherboard Utility (A-Tuning)“ on your desktop.
B550M-ITX/ac OC Tweaker Configurations for overclocking the system. System Info English View information about the system. *The System Browser tab may not appear for certain models.
FAN-Tastic Tuning Configure up to five different fan speeds using the graph. The fans will automatically shift to the next speed level when the assigned temperature is met. Settings Configure ASRock ASRock Motherboard Utility (A-Tuning). Click to select "Auto run at Windows Startup" if you want ASRock Motherboard Utility (A-Tuning) to be launched when you start up the Windows operating system.
B550M-ITX/ac 3.3 ASRock Live Update & APP Shop The ASRock Live Update & APP Shop is an online store for purchasing and downloading software applications for your ASRock computer. You can quickly and easily install various apps and support utilities. With ASRock Live Update & APP Shop, you can optimize your system and keep your motherboard up to date simply with a few clicks. Double-click utility.
3.3.2 Apps When the "Apps" tab is selected, you will see all the available apps on screen for you to download. Installing an App Step 1 Find the app you want to install. The most recommended app appears on the left side of the screen. The other various apps are shown on the right. Please scroll up and down to see more apps listed. You can check the price of the app and whether you have already intalled it or not. - The red icon displays the price or "Free" if the app is free of charge.
B550M-ITX/ac Step 3 If you want to install the app, click on the red icon to start downloading. Step 4 When installation completes, you can find the green "Installed" icon appears on the upper right corner. . English To uninstall it, simply click on the trash can icon *The trash icon may not appear for certain apps.
Upgrading an App You can only upgrade the apps you have already installed. When there is an available new version for your app, you will find the mark of "New Version" appears below the installed app icon. Step 1 Click on the app icon to see more details. Step 2 Click on the yellow icon English 42 to start upgrading.
B550M-ITX/ac 3.3.3 BIOS & Drivers Installing BIOS or Drivers When the "BIOS & Drivers" tab is selected, you will see a list of recommended or critical updates for the BIOS or drivers. Please update them all soon. Step 1 Please check the item information before update. Click on to see more details. Step 2 Click to select one or more items you want to update. Step 3 English Click Update to start the update process.
3.3.4 Setting In the "Setting" page, you can change the language, select the server location, and determine if you want to automatically run the ASRock Live Update & APP Shop on Windows startup.
B550M-ITX/ac 3.4 ASRock Polychrome SYNC ASRock Polychrome SYNC is a lighting control utility specifically designed for unique individuals with sophisticated tastes to build their own stylish colorful lighting system. Simply by connecting the LED strip, you can customize various lighting schemes and patterns, including Static, Breathing, Strobe, Cycling, Music, Wave and more. Connecting the LED Strip B550M-ITX/ac Connect your RGB LED strip to the RGB LED Header (RGB_LED1) on the motherboard.
Connecting the Addressable RGB LED Strip B550M-ITX/ac Connect your Addressable RGB LED strip to the Addressable LED Header (ADDR_LED1) on the motherboard. ADDR_LED1 1 GND DO_ADDR VOUT 1 1. Never install the RGB LED cable in the wrong orientation; otherwise, the cable may be damaged. 2. Before installing or removing your RGB LED cable, please power off your system and unplug the power cord from the power supply. Failure to do so may cause damages to motherboard components. 1.
B550M-ITX/ac ASRock Polychrome SYNC Utility Now you can adjust the RGB LED color through the ASRock Polychrome SYNC Utility. Download this utility from the ASRock Live Update & APP Shop and start coloring your PC style your way! Drag the tab to customize your preference. Toggle on/off the RGB LED switch Select a RGB LED light effect from the drop-down menu.
Chapter 4 UEFI SETUP UTILITY 4.1 Introduction This section explains how to use the UEFI SETUP UTILITY to configure your system. You may run the UEFI SETUP UTILITY by pressing or right after you power on the computer, otherwise, the Power-On-Self-Test (POST) will continue with its test routines. If you wish to enter the UEFI SETUP UTILITY after POST, restart the system by pressing + + , or by pressing the reset button on the system chassis.
B550M-ITX/ac 4.1.2 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 to get into the sub screen. You can also use the mouse to click your required item. Please check the following table for the descriptions of each navigation key.
4.2 Main Screen When you enter the UEFI SETUP UTILITY, the Main screen will appear and display the system overview.
B550M-ITX/ac 4.3 OC Tweaker Screen In the OC Tweaker screen, you can set up overclocking features. 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. CPU Frequency and Voltage(VID) Change If this item is set to [Manual], the multiplier and voltage will be set based on user selection. Final result is depending on the CPU's capability.
CCD1 CCX0 Frequency (MHz) Use this item to adjust CCX0 Frequency. CCX1 Frequency (MHz) Use this item to adjust CCX1 Frequency. SoC/Uncore OC Voltage(VID) Specify the SoC/Uncore voltage (VDD_SOC) in mV to support memory and Infinity Fabric overclocking. VDD_SOC also determines the GPU voltage on processors with integrated graphics. “SoC/Uncore OC Mode” needs to be enabled to force this voltage.
B550M-ITX/ac Infinity Fabric Frequency and Dividers AMD Overclocking Setup Set Infinity Fabric frequency (FCLK). Auto: FCLK = MCLK. Manual: FCLK must be less than or equal to MCLK for best performance in most cases. Latency penalties are incurred if FCLK and MCLK are mismatched, but sufficiently high MCLK can negate or overcome this penalty. DRAM Timing Configuration External Voltage Settings and Load-line Calibration CPU Vcore Voltage Input voltage for the processor by the external voltage refulator.
Load User Default Load previously saved user defaults. Save User UEFI Setup Profile to Disk Save current UEFI settings as an user default profile to disk. Load User UEFI Setup Profile to Disk Load previously saved user defaults from the disk.
B550M-ITX/ac 4.4 Advanced Screen In this section, you may set the configurations for the following items: CPU Configuration, Onboard Devices Configuration, Storage Configuration, ACPI Configuration, Trusted Computing , AMD PBS and AMD CBS. Setting wrong values in this section may cause the system to malfunction. UEFI Configuration Active Page on Entry Select the default page when entering the UEFI setup utility.
4.4.1 CPU Configuration PSS Support Use this to enable or disable the generation of ACPI_PPC, _PSS, and _PCT objects. NX Mode Use this to enable or disable NX mode. SVM Mode When this is set to [Enabled], a VMM (Virtual Machine Architecture)can utilize the additional hardware capabilities provided by AMD-V. The default value is [Enabled]. Coniguration options: [Enabled] and [Disabled]. SMT Mode This item can be used to disable symmetric multithreading.
B550M-ITX/ac 4.4.2 Onboard Devices Configuration Turn On Onboard LED in S5 Turn on/off the LED in the ACPI S5 state. SR-IOV Support Enable/disable the SR-IOV (Single Root IO Virtualization Support) if the system has SR-IOV capable PCIe devices. UMA Frame buffer Size (Only for processor with integrated graphics) This item allows you to set the size of the UMA frame buffer. Gnb Hd Audio Enable/disable onboard HD audio.
WAN Radio Configure the WiFi module's connectivity. BT On/Off Enable/disable the bluetooth. PS2 Y-Cable Enable the PS2 Y-Cable or set this option to Auto.
B550M-ITX/ac 4.4.3 Storage Configuration SATA Mode AHCI: Supports new features that improve performance. RAID: Combine multiple disk drives into a logical unit. SATA Hot Plug English Enable/disable the SATA Hot Plug function.
4.4.4 ACPI Configuration Suspend to RAM It is recommended to select auto for ACPI S3 power saving. Deep Sleep Configure deep sleep mode for power saving when the computer is shut down. We recommend disabling Deep Sleep for better system compatibility and stability. PS/2 Keyboard S4/S5 Wakeup Support Allow the system to be waked up by a PS/2 Keyboard in S4/S5. PCIE Devices Power On Allow the system to be waked up by a PCIE device and enable wake on LAN.
B550M-ITX/ac 4.4.5 Trusted Computing Security Device Support English Enable or disable BIOS support for security device.
4.4.6 AMD PBS The AMD PBS menu accesses AMD specific features.
B550M-ITX/ac 4.4.7 AMD CBS English The AMD CBS menu accesses AMD specific features.
4.5 Tools Easy RAID Installer Easy RAID Installer helps you to copy the RAID driver from the support CD to your USB storage device. After copying the drivers please change the SATA mode to RAID, then you can start installing the operating system in RAID mode. SSD Secure Erase Tool All the SSD's listed that supports Secure Erase function. NVME Sanitization Tool After you Sanitize SSD, all user data will be permanently destroyed on the SSD and cannot be recovered.
B550M-ITX/ac 4.6 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 voltage. CPU FAN1 Setting Select a fan mode for CPU Fan 1, or choose Customize to set 5 CPU temperatures and assign a respective fan speed for each temperature. CPU FAN1 Temp Source Select a fan temperature source for CPU Fan 1.
CHA_FAN2/WP Switch Select CHA_FAN2 or Water Pump mode. Chassis Fan 2 Control Mode Select PWM mode or DC mode for Chassis Fan 2. Chassis Fan 2 Setting Select a fan mode for Chassis Fan 2, or choose Customize to set 5 CPU temperatures and assign a respective fan speed for each temperature. Chassis Fan 2 Temp Source Select a fan temperature source for Chassis Fan 2. Fan-Tastic Select a fan mode for Fan, or choose Customize to set 5 CPU temperatures and assign a respective fan speed for each temperature.
B550M-ITX/ac 4.7 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 authority to change the settings in the UEFI Setup Utility. Leave it blank and press enter to remove the password. User Password Set or change the password for the user account. Users are unable to change the settings in the UEFI Setup Utility.
4.8 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 Allow the system to be waked up by the onboard LAN. Setup Prompt Timeout Configure the number of seconds to wait for the setup hot key. Fast Boot Fast Boot minimizes your computer's boot time. In fast mode you may not boot from an USB storage device.
B550M-ITX/ac CSM (Compatibility Support Module) CSM Enable to launch the Compatibility Support Module. Please do not disable unless you’re running a WHCK test. Launch PXE OpROM Policy Select UEFI only to run those that support UEFI option ROM only. Select Legacy only to run those that support legacy option ROM only. Select Do not launch to not execute both legacy and UEFI option ROM. Launch Storage OpROM Policy Select UEFI only to run those that support UEFI option ROM only.
AddOn ROM Display Enable AddOn ROM Display to see the AddOn ROM messages or configure the AddOn ROM if you've enabled Full Screen Logo. Disable for faster boot speed.
B550M-ITX/ac 4.9 Exit Screen Save Changes and Exit When you select this option the following message, “Save configuration changes and exit setup?” will pop out. Select [OK] to save changes and exit the UEFI SETUP UTILITY. Discard Changes and Exit When you select this option the following message, “Discard changes and exit setup?” will pop out. Select [OK] to exit the UEFI SETUP UTILITY without saving any changes.
Contact Information If you need to contact ASRock or want to know more about ASRock, you’re welcome to visit ASRock’s website at http://www.asrock.com; or you may contact your dealer for further information. For technical questions, please submit a support request form at http://www.asrock.com/support/tsd.asp ASRock Incorporation 2F., No.37, Sec. 2, Jhongyang S. Rd., Beitou District, Taipei City 112, Taiwan (R.O.C.) ASRock EUROPE B.V.
DECLARATION OF CONFORMITY Per FCC Part 2 Section 2.1077(a) Responsible Party Name: Address: Phone/Fax No: ASRock Incorporation 13848 Magnolia Ave, Chino, CA91710 +1-909-590-8308/+1-909-590-1026 hereby declares that the product Product Name : Motherboard Model Number : B550M-ITX/ac Conforms to the following specifications: FCC Part 15, Subpart B, Unintentional Radiators Supplementary Information: This device complies with part 15 of the FCC Rules.
EU Declaration of Conformity For the following equipment: Motherboard (Product Name) B550M-ITX/ac / ASRock (Model Designation / Trade Name) ASRock Incorporation (Manufacturer Name) 2F., No.37, Sec. 2, Jhongyang S. Rd., Beitou District, Taipei City 112, Taiwan (R.O.C.
