ASROCK B450 Steel Legend User Manual
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ASROCK B450 Steel Legend User Manual

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  • Page 2 (including damages for loss of profits, loss of business, loss of data, interruption of business and the like), even if ASRock has been advised of the possibility of such damages arising from any defect or error in the documentation or product.
  • Page 3 If you require assistance please call ASRock Tel : +886-2-28965588 ext.123 (Standard International call charges apply) The terms HDMI®...

  • Page 4: Table Of Contents

    Contents Chapter 1 Introduction Package Contents Specifications Motherboard Layout I/O Panel Chapter 2 Installation Installing the CPU Installing the CPU Fan and Heatsink Installing Memory Modules (DIMM) Expansion Slots (PCI Express Slots) Jumpers Setup Onboard Headers and Connectors CrossFireX and Quad CrossFireX Operation Guide 2.7.1 Installing Two CrossFireX -Ready Graphics Cards...
  • Page 5 ASRock Live Update & APP Shop 3.3.1 UI Overview 3.3.2 Apps 3.3.3 BIOS & Drivers 3.3.4 Setting ASRock Polychrome RGB Chapter 4 UEFI SETUP UTILITY Introduction 4.1.1 UEFI Menu Bar 4.1.2 Navigation Keys Main Screen OC Tweaker Screen Advanced Screen 4.4.1 CPU Configuration...
  • Page 6 Security Screen Boot Screen Exit Screen...

  • Page 7: Chapter 1 Introduction

    If you require technical support related to this motherboard, please visit our website for specific information about the model you are using. You may find the latest VGA cards and CPU support list on ASRock’s website as well. ASRock website http://www.asrock.com.

  • Page 8: Specifications

    * For Ryzen Series CPUs (Raven Ridge), ECC is only supported with PRO CPUs. * Please refer to Memory Support List on ASRock’s website for more information. (http://www.asrock.com/) * Please refer to page 22 for the table for AMD non-XMP mem- ory frequency support.
  • Page 9 B450 Steel Legend AMD Athlon series CPUs • 2 x PCI Express 3.0 x16 Slots (PCIE1: x4 mode; PCIE4: x2 mode)* * Supports NVMe SSD as boot disks * If M2_1 is occupied, PCIE4 will be disabled. • 4 x PCI Express 2.0 x1 Slots • Supports AMD Quad CrossFireX...
  • Page 10 • 1 x M.2 Socket (M2_2), supports M Key type 2230/2242/2260/2280/22110 M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up to Gen3 x2 (16 Gb/s) ** ** If M2_1 is occupied, PCIE4 will be disabled. ** Supports NVMe SSD as boot disks ** Supports ASRock U.2 Kit...
  • Page 11 B450 Steel Legend Connector • 1 x COM Port Header • 1 x TPM Header • 1 x Power LED and Speaker Header • 1 x RGB LED Header * Supports in total up to 12V/3A, 36W LED Strip • 1 x Addressable LED Header * Supports in total up to 5V/3A, 15W LED Strip • 1 x AMD Fan LED Header...
  • Page 12 • ErP/EuP ready (ErP/EuP ready power supply is required) * For detailed product information, please visit our website: http://www.asrock.com Please realize that there is a certain risk involved with overclocking, including adjust- ing the setting in the BIOS, applying Untied Overclocking Technology, or using third- party overclocking tools.

  • Page 13: Motherboard Layout

    B450 Steel Legend 1.3 Motherboard Layout USB 2.0 AMD_FAN_LED1 T: USB5 B: USB6 CPU_FAN1 CPU_FAN2/WP ATX12V1 USB 3.1 Gen1 T: USB3_3 B: USB3_4 USB 3.1 Gen1 T: USB3_1 B: USB3_2 USB 3.1 Gen2 T: USB31_TA_1 B: USB31_TC_1 Ultra M.2 PCIe Gen3 x4...
  • Page 14 No. Description ATX 12V Power Connector (ATX12V1) 2 x 288-pin DDR4 DIMM Slots (DDR4_A1, DDR4_B1) AMD Fan LED Header (AMD_FAN_LED1) 2 x 288-pin DDR4 DIMM Slots (DDR4_A2, DDR4_B2) CPU/Water Pump Fan Connector (CPU_FAN2/WP) CPU Fan Connector (CPU_FAN1) ATX Power Connector (ATXPWR1) USB 3.1 Gen1 Header (USB3_5_6) SATA3 Connector (SATA3_1) SATA3 Connector (SATA3_2)

  • Page 15: I/O Panel

    B450 Steel Legend 1.4 I/O Panel No. Description No. Description USB 2.0 Ports (USB_56) USB 3.1 Gen2 Type-A Port (USB31_TA_1) LAN RJ-45 Port* USB 3.1 Gen2 Type-C Port (USB31_TC_1) Central / Bass (Orange) USB 3.1 Gen1 Ports (USB3_12) Rear Speaker (Black) USB 3.1 Gen1 Ports (USB3_34)***...
  • Page 16 * There are two LEDs on each LAN port. Please refer to the table below for the LAN port LED indications. ACT/LINK LED SPEED LED LAN Port Activity / Link LED Speed LED Status Description Status Description No Link 10Mbps connection Blinking Data Activity Orange...

  • Page 17: Chapter 2 Installation

    B450 Steel Legend Chapter 2 Installation This is an ATX 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.

  • Page 18: Installing The Cpu

    2.1 Installing the CPU Unplug all power cables before installing the CPU.
  • Page 19 B450 Steel Legend...

  • Page 20: Installing The Cpu Fan And Heatsink

    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.
  • Page 21 B450 Steel Legend 4-pin FAN cable...
  • Page 22 Installing the AM4 Box Cooler SR2...
  • Page 23 B450 Steel Legend...
  • Page 24 4-pin FAN cable 4-pin FAN cable RGB LED Cable +12V *The diagrams shown here are for reference only. The headers might be in a different position on your motherboard. Please refer to page 31 for the orientation of AMD Fan LED Header (AMD_ FAN_LED1).
  • Page 25 B450 Steel Legend Installing the AM4 Box Cooler SR3...
  • Page 27 B450 Steel Legend 4-pin FAN cable USB 2.0 Header Please note that this connector is the interface to the LED control board on the SR3, it requires the AMD utility "SR3 Settings Software" to control the LED. *The diagrams shown here are for reference only. The headers might be in a different position on your...

  • Page 28: Installing Memory Modules (Dimm)

    2.3 Installing Memory Modules (DIMM) This motherboard provides four 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.
  • Page 29 B450 Steel Legend Ryzen Series CPUs (Summit Ridge): UDIMM Memory Slot Frequency (Mhz) 2667 2667 2667 2667 2667 SR/DR SR/DR 2667 SR/DR SR/DR SR/DR SR/DR 2133-2400 Ryzen Series CPUs (Raven Ridge): UDIMM Memory Slot Frequency (Mhz) 2933 2667 2667 2667...
  • Page 30 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.

  • Page 31: Expansion Slots (Pci Express Slots)

    B450 Steel Legend 2.4 Expansion Slots (PCI Express Slots) There are 6 PCI Express slots 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.

  • Page 32: Jumpers Setup

    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 Short: Clear CMOS (CLRCMOS2) Open: Default 2-pin Jumper...

  • Page 33: Onboard Headers And Connectors

    B450 Steel Legend 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.
  • Page 34 Power LED and Speaker Please connect the SPEAKER DUMMY Header chassis power LED and DUMMY (7-pin SPK_PLED1) the chassis speaker to this (see p.7, No. 16) header. PLED+ PLED+ PLED- Serial ATA3 Connectors These six SATA3 (SATA3_1: connectors support SATA see p.7, No.
  • Page 35 B450 Steel Legend Front Panel Audio Header This header is for PRESENCE# (9-pin HD_AUDIO1) connecting audio devices MIC_RET OUT_RET (see p.7, No. 26) to the front audio panel. OUT2_L J_SENSE OUT2_R MIC2_R MIC2_L 1. High Definition Audio supports Jack Sensing, but the panel wire on the chassis must support HDA to function correctly.
  • Page 36 CPU/Water Pump Fan This motherboard Connector provides a 4-Pin water FAN_VOLTAGE_CONTROL FAN_SPEED (4-pin CPU_FAN2/WP) cooling CPU fan FAN_SPEED_CONTROL (see p.7, No. 5) connector. If you plan to connect a 3-Pin CPU water cooler fan, please connect it to Pin 1-3. ATX Power Connector This motherboard pro- (24-pin ATXPWR1)
  • Page 37 B450 Steel Legend AMD FAN LED Header AMD FAN LED Header is used (4-pin AMD_FAN_ to connect RGB LED 12V G R LED1) extension cable that comes with (see p.7, No. 3) AMD heatsink. The cable connection allows users to choose from various LED lighting effects.

  • Page 38: Tm Operation Guide

    2.7 CrossFireX and Quad CrossFireX Operation Guide This motherboard supports CrossFireX and Quad CrossFireX that allows you to install up to two identical PCI Express x16 graphics cards. 1. You should only use identical CrossFireX -ready graphics cards that are AMD certified.
  • Page 39 B450 Steel Legend Step 3 Connect a VGA cable or a DVI cable to the monitor connector or the DVI connec- tor of the graphics card that is inserted to PCIE1 slot.

  • Page 40: Driver Installation And Setup

    2.7.2 Driver Installation and Setup Step 1 Power on your computer and boot into OS. Step 2 Remove the AMD drivers if you have any VGA drivers installed in your system. The Catalyst Uninstaller is an optional download. We recommend using this utility to uninstall any previously installed Catalyst drivers prior to installation.
  • Page 41 B450 Steel Legend 2.8 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 Ultra M.2 Socket (M2_1) supports M Key type 2230/2242/2260/2280 M.2 PCI Express module up to...
  • Page 42 Step 3 Before installing a M.2 (NGFF) SSD module, please loosen the screws to remove the M.2 heatsink. Step 4 Prepare the M.2 standoff that comes with the package. Then hand tighten the standoff into the desired nut location on the motherboard. Align and gently insert the M.2 (NGFF) SSD module into the M.2 slot.
  • Page 43 B450 Steel Legend M.2_SSD (NGFF) Module Support List Vendor Interface Intel PCIe INTEL 6000P-SSDPEKKF256G7 (nvme) Intel PCIe INTEL 6000P-SSDPEKKF512G7 (nvme) Intel PCIe INTEL 600P-SSDPEKKW256G7-256GB (nvme) Kingston PCIe Kingston SHPM2280P2 / 240G (Gen2 x4) SanDisk PCIe SanDisk-SD6PP4M-128G(Gen2 x2) Samsung PCIe Samsung XP941-MZHPU512HCGL(Gen2x4) For the latest updates of M.2_SSD (NFGG) module support list, please visit our website for...

  • Page 44: M.2_Ssd (Ngff) Module Installation Guide (M2_2)

    2.9 M.2_SSD (NGFF) Module Installation Guide (M2_2) 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 M.2 Socket (M2_2) supports M Key type 2230/2242/2260/2280/22110 M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up to Gen3 x2 (16 Gb/s).
  • Page 45 B450 Steel Legend Step 3 Move the standoff based on the module type and length. The standoff is placed at the nut location D by default. Skip Step 3 and 4 and go straight to Step 5 if you are going to use the default nut.
  • Page 46 SanDisk SATA Sandisk Z400s-SD8SNAT-128G-1122 SanDisk SATA SanDisk-SD6SN1M-128G Transcend SATA Transcend TS256GMTS800-256GB V-Color SATA V-Color 120G V-Color SATA V-Color 240G SATA WD GREEN WDS240G1G0B-00RC30 For the latest updates of M.2_SSD (NFGG) module support list, please visit our website for details: http://www.asrock.com...

  • Page 47: Chapter 3 Software And Utilities Operation

    B450 Steel Legend 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”...

  • Page 48: A-Tuning

    3.2 A-Tuning A-Tuning is ASRock’s multi purpose software suite with a new interface, more new features and improved utilities. 3.2.1 Installing A-Tuning A-Tuning can be downloaded from ASRock Live Update & APP Shop. After the installation, you will find the icon “A-Tuning“ on your desktop. Double-click the “A- Tuning“...
  • Page 49 B450 Steel Legend OC Tweaker Configurations for overclocking the system. System Info View information about the system. *The System Browser tab may not appear for certain models.
  • Page 50 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 A-Tuning. Click to select "Auto run at Windows Startup" if you want A-Tuning to be launched when you start up the Windows operating system.

  • Page 51: Asrock Live Update & App Shop

    Double-click on your desktop to access ASRock Live Update & APP Shop utility. *You need to be connected to the Internet to download apps from the ASRock Live Update & APP Shop. 3.3.1 UI Overview Category Panel Hot News...

  • Page 52: Apps

    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.
  • Page 53 B450 Steel Legend 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. To uninstall it, simply click on the trash can icon...
  • Page 54 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 to start upgrading.

  • Page 55: Bios & Drivers

    B450 Steel Legend 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.

  • Page 56: Setting

    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.

  • Page 57: Asrock Polychrome Rgb

    B450 Steel Legend 3.4 ASRock Polychrome RGB ASRock Polychrome RGB is a lighting control utility specifically designed for unique individuals with sophisticated tastes to build their own stylish colorful lighting system. Simply by connect- ing the LED strip, you can customize various lighting schemes and patterns, including Static, Breathing, Strobe, Cycling, Music, Wave and more.
  • Page 58 Connecting the Addressable RGB LED Strip Connect your Addressable RGB LED strip to the Addressable LED Header (ADDR_LED1) on the motherboard. ADDR_LED1 DO_ADDR VOUT 1. Never install the RGB LED cable in the wrong orientation; otherwise, the cable may be damaged. 2.
  • Page 59 ASRock Polychrome RGB Utility Now you can adjust the RGB LED color through the ASRock Polychrome RGB 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.

  • Page 60: Chapter 4 Uefi Setup Utility

    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 <F2> or <Del> right after you power on the computer, otherwise, the Power-On-Self-Test (POST) will continue with its test routines.

  • Page 61: Navigation Keys

    B450 Steel Legend 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 <Enter>...

  • Page 62: Main Screen

    4.2 Main Screen When you enter the UEFI SETUP UTILITY, the Main screen will appear and display the system overview.

  • Page 63: Oc Tweaker Screen

    B450 Steel Legend 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.
  • Page 64 DRAM Timing Configuration DRAM Frequency If [Auto] is selected, the motherboard will detect the memory module(s) inserted and assign the appropriate frequency automatically. AM4 Advance Boot Training Set TR4 Advance boot training to [Auto] to increase compatibility. Voltage Configuration CPU Core Voltage Configure the voltage for the CPU Core.
  • Page 65 B450 Steel Legend Chipset 1.05V Voltage Use this to select 1.05V Voltage. The default value is [Auto]. Save User Default Type a profile name and press enter to save your settings as user default. Load User Default Load previously saved user defaults.

  • Page 66: Advanced Screen

    4.4 Advanced Screen In this section, you may set the configurations for the following items: CPU Configuration, North Bridge Configuration, South Bridge Configuration, Storage- Configuration, Super IO Configuration, ACPI Configuration, Trusted Computing , AMD CBS and AMD PBS. 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.

  • Page 67: Cpu Configuration

    B450 Steel Legend 4.4.1 CPU Configuration Cool 'n' Quiet Use this item to enable or disable AMD’s Cool ‘n’ Quiet technology. The default value is ® [Enabled]. Configuration options: [Enabled] and [Disabled]. If you install Windows OS and want to enable this function, please set this item to [Enabled]. Please note that enabling this function may reduce CPU voltage and memory frequency, and lead to system stability or compatibility issue with some memory modules or power supplies.

  • Page 68: North Bridge Configuration

    4.4.2 North Bridge Configuration SR-IOV Support Enable/disable the SR-IOV (Single Root IO Virtualization Support) if the system has SR-IOV capable PCIe devices.

  • Page 69: South Bridge Configuration

    B450 Steel Legend 4.4.3 South Bridge Configuration Onboard HD Audio Enable/disable onboard HD audio. Set to Auto to enable onboard HD audio and automatically disable it when a sound card is installed. Front Panel Enable/disable front panel HD audio. Deep Sleep Configure deep sleep mode for power saving when the computer is shut down.

  • Page 70: Storage Configuration

    4.4.4 Storage Configuration SATA Controller(s) Enable/disable the SATA controllers. SATA Mode AHCI: Supports new features that improve performance. RAID: Combine multiple disk drives into a logical unit. SATA Hot Plug Enable/disable the SATA Hot Plug function.

  • Page 71: Super Io Configuration

    B450 Steel Legend 4.4.5 Super IO Configuration Serial Port Enable or disable the Serial port. Serial Port Address Select the address of the Serial port. PS2 Y-Cable Enable the PS2 Y-Cable or set this option to Auto.

  • Page 72: Acpi Configuration

    4.4.6 ACPI Configuration Suspend to RAM It is recommended to select auto for ACPI S3 power saving. ACPI HPET Table Enable the High Precision Event Timer for better performance and to pass WHQL tests. PS/2 Keyboard Power On Allow the system to be waked up by a PS/2 Keyboard. PCIE Devices Power On Allow the system to be waked up by a PCIE device and enable wake on LAN.

  • Page 73: Trusted Computing

    B450 Steel Legend 4.4.7 Trusted Computing Security Device Support Enable to activate Trusted Platform Module (TPM) security for your hard disk drives.

  • Page 74: Amd Cbs

    4.4.8 AMD CBS Zen Common Options RedirectForReturnDis From a workaround for GCC/C000005 issue for XV Core on CZ A0, setting MSRC001_1029 Decode Configuration (DE_CFG) bit 14 [DecfgNoRdrctForReturns] to 1. L2 TLB Associativity 0 - L2 TLB ways [11:8] are fully associative. 1 - =L2 TLB ways [11:8] are 4K-only. Platform first Error Handling Enable/disable PFEH, cloak individual banks, and mask deferred error interrupts from each bank.
  • Page 75 B450 Steel Legend Opcache Control Enables or disables the Opcache. OC Mode OC1 - 16 cores/3.6GHz on 1.3375V OC2 - 8 cores/3.7GHz on 1.369V OC3 - 4 cores/3.75GHz on 1.374V\nMax Stress - 16 cores/3.8GHz on 1.400V SEV-ES ASID Space Limit SEV VMs using ASIDs below the SEV-ES ASID Space Limit must enable the SEV-ES feature.
  • Page 76 GMI encryption control GMI encryption control Control GMI link encryption xGMI encryption control Control xGMI link encryption CC6 memory region encryption Control whether or not the CC6 save/restore memory is encrypted Location of private memory regions Controls whether or not the private memory regions (PSP, SMU and CC6) are at the top of DRAM or distributed.
  • Page 77 B450 Steel Legend UMC Common Options DDR4 Common Options DRAM Controller Configuration DRAM Controller Configuration DRAM Power Options Cmd2T Select between 1T and 2T mode on ADDR/CMD Gear Down Mode Configure the Gear Down Mode. CAD Bus Configuration CAD Bus Timing User Controls...
  • Page 78 DRAM Memory Mapping Chipselect Interleaving Interleave memory blocks across the DRAM chip selects for node 0. BankGroupSwap Configure the BankGroupSwap. BankGroupSwapAlt Configure BankGroupSwapAlt. Address Hash Bank Configure the bank address hashing. Address Hash CS Configure the CS address hashing. NVDIMM Memory MBIST MBIST Enable Configure the Memory MBIST.
  • Page 79 B450 Steel Legend Determinism Slider [Auto] Use default performance determinism settings cTDP Control [Auto] Use the fused cTDP. [Manual] User can set customized cTDP. Fan Control [Auto] Use the default fan controller settings. [Manual] User can set customized fan controller settings.
  • Page 80 SATA Controller Disable or enable OnChip SATA controller Sata RAS Support Disable or enable Sata RAS Support Sata Disabled AHCI Prefetch Function Configure the Sata Disabled AHCI Prefetch function. Aggresive SATA Device Sleep Port 0 Configure the Aggresive SATA Device Sleep Port 0. Aggresive SATA Device Sleep Port 1 Configure the Aggresive SATA Device Sleep Port 1.
  • Page 81 B450 Steel Legend Chipselect Interleaving Interleave memory blocks across the DRAM chip selects for node 0. BankGroupSwap Configure the BankGroupSwap. BankGroupSwapAlt Configure the BankGroupSwapAlt. Address Hash Bank Configure the bank address hashing. Address Hash CS Configure the CS address hashing.

  • Page 82: Amd Pbs

    4.4.9 AMD PBS The AMD PBS menu accesses AMD specific features.

  • Page 83: Tools

    B450 Steel Legend 4.5 Tools RGB LED ASRock Polychrome RGB allows you to adjust the RGB LED color to your liking. 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.
  • Page 84 Save UEFI files in your USB storage device and run Instant Flash to update your UEFI. Internet Flash - DHCP (Auto IP), Auto ASRock Internet Flash downloads and updates the latest UEFI firmware version from our servers for you. Please setup network configuration before using Internet Flash.

  • Page 85: Hardware Health Event Monitoring Screen

    B450 Steel Legend 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. Fan Tuning Measure Fan Min Duty Cycle.
  • Page 86 CPU Fan 2 Setting Select a fan mode for CPU Fan 2, or choose Customize to set 5 CPU temperatures and assign a respective fan speed for each temperature. CPU Fan 2 Temp Source Select a fan temperature source for CPU Fan 2. CHA_FAN1/WP Switch Select Chassis Fan 1 or Water Pump mode.
  • Page 87 B450 Steel Legend Chassis Fan 3 Setting Select a fan mode for Chassis Fan 3, or choose Customize to set 5 CPU temperatures and assign a respective fan speed for each temperature. Chassis Fan 3 Temp Source Select a fan temperature source for Chassis Fan 3.
  • Page 88 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.
  • Page 89 B450 Steel Legend 4.8 Boot Screen This section displays the available devices on your system for you to configure the boot settings and the boot priority. Fast Boot Fast Boot minimizes your computer's boot time. In fast mode you may not boot from an USB storage device.
  • Page 90 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. Above 4G Decoding Enable or disable 64bit capable Devices to be decoded in Above 4G Address Space (only if the system supports 64 bit PCI decoding).
  • Page 91 B450 Steel Legend 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...
  • Page 92 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 https://event.asrock.com/tsd.asp...
  • Page 93 Address: Phone/Fax No: +1-909-590-8308/+1-909-590-1026 hereby declares that the product Product Name : Motherboard B450 Steel Legend Model Number : Conforms to the following speci cations: FCC Part 15, Subpart B, Unintentional Radiators Supplementary Information: is device complies with part 15 of the FCC Rules. Operation is subject to the...
  • Page 94 EU Declaration of Conformity For the following equipment: Motherboard (Product Name) B450 Steel Legend / 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.) (Manufacturer Address) EMC —Directive 2014/30/EU (from April 20th, 2016)

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