ASRock B450 Steel Legend ATX Gaming Motherboard | AMD Ryzen Series CPU Support | AMD AM4 Socket | Max 128GB Memory Support

Motherboard Chipset – AMD Promontory B450

CPU Socket – AMD AM4 Socket

Max Memory Support – 128GB DDR4

Max Memory Slots – 4

Motherboard Form Factor – ATX

Recommended reading:Gigabyte X570S Aorus Master | ATX Motherboard

OVERVIEW
ASRock B450 Steel Legend ATX Gaming Motherboard is made for gamers who are looking for a cost-effective motherboard with all the latest features. This Gaming Motherboard is designed to take on any high-end graphics card, with support for both NVIDIA and AMD cards. It has 4 memory slots, which can be configured for dual-channel mode. It has 6 USB 3.1 Gen 1 ports and 6 SATA ports. This motherboard also has 2 M.2 slots, with one supporting M.2 SATA3 6Gb/s SSDs and the other supporting M.2 PCIe 3.0 x4 NVMe SSDs.

TECHNICAL SPECIFICATIONS

CPU_
Socket & CPU Type_ Supports AMD AM4 Socket Ryzen 2000, 3000, 4000 G-Series, 5000, and 5000 G-Series Desktop Processors
Other Features_ -Digi Power design
-6 Power Phase design
Chipset_
Onboard Chipset_ AMD Promontory B450
Memory_
Memory Channel_ Dual-Channel DDR4 Memory Technology
Memory Slot Support_ 4 x DDR4 DIMM Slots
Memory Support (MHz)_ -AMD Ryzen series CPUs (Vermeer) support DDR4 3200 / 2933 / 2667 / 2400 / 2133 ECC & nonECC, unbuffered memory*
-AMD Ryzen series CPUs (Matisse) support DDR4 3200 / 2933 / 2667 / 2400 / 2133 ECC & nonECC, unbuffered memory*
-AMD Ryzen series APUs (Cezanne) support DDR4 3200 / 2933 / 2667 / 2400 / 2133 ECC & nonECC, unbuffered memory*
-AMD Ryzen series APUs (Renoir) support DDR4 3200 / 2933 / 2667 / 2400 / 2133 ECC & nonECC, unbuffered memory*
-AMD Ryzen series CPUs (Pinnacle Ridge) support DDR4 3533+(OC) / 3200(OC) / 2933(OC) / 2667 / 2400 / 2133 ECC & nonECC, unbuffered memory*
-AMD Ryzen series CPUs (Picasso) support DDR4 2933 / 2667 / 2400 / 2133 nonECC, unbuffered memory*
-AMD Ryzen series CPUs (Summit Ridge) support DDR4 3466+(OC) / 3200(OC) / 2933(OC) / 2667 / 2400 / 2133 ECC & nonECC, unbuffered memory*
-AMD Ryzen series CPUs (Raven Ridge) support DDR4 3466+(OC) / 3200(OC) / 2933 / 2667 / 2400 / 2133 nonECC, unbuffered memory*
Max Memory Support_ 128GB**
Other Memory Features_ -Supports Extreme Memory Profile (XMP) memory modules
-15µ Gold Contact in DIMM Slots
Note_ *For Ryzen Series APUs (Picasso, Cezanne, Renoir, and Raven Ridge), ECC is only supported with PRO CPUs.
**Due to the operating system limitation, the actual memory size may be less than 4GB for the reservation for system usage under Windows 32bit OS. For Windows 64bit OS with 64bit CPU, there is no such limitation.
BIOS_
Supported BIOS_ -128Mb AMI UEFI Legal BIOS with multilingual GUI support
-Supports Plug and Play
-ACPI 5.1 compliance wake-up events
-Supports jumperfree
-SMBIOS 2.3 support
-DRAM Voltage multi adjustment
Graphics_
GPU Technology Support_ -Integrated AMD Radeon Vega Series Graphics in Ryzen Series APU*
-DirectX 12, Pixel Shader 5.0
-Shared memory default 2GB. Max Shared memory supports up to 16GB.**
-Dual graphics output: Support HDMI and DisplayPort 1.2 ports by independent display controllers
-Supports HDMI 1.4 with max. resolution up to 4K x 2K (4096×2160) @ 24Hz / (3840×2160) @ 30Hz
-Supports DisplayPort 1.2 with max. resolution up to 4K x 2K (4096×2160) @ 60Hz
-Supports Auto Lip Sync, Deep Color (12bpc), xvYCC, and HBR (High Bit Rate Audio) with HDMI 1.4 Port (Compliant HDMI monitor is required)
-Supports HDCP 1.4 with HDMI 1.4 and DisplayPort 1.2 Ports
-Supports 4K Ultra HD (UHD) playback with HDMI 1.4 and DisplayPort 1.2 Ports
Note_ *Actual support may vary by CPU
**The Max shared memory of 16GB requires 32GB system memory installed.
Audio_
Audio Technology Support_ -7.1 CH HD Audio with Content Protection (Realtek ALC892/897 Audio Codec)
-Individual PCB Layers for R/L Audio Channel
Connector Support_ Gold Audio Jacks
Other Features_ -Supports Surge Protection
-PCB Isolate Shielding
LAN_
Networking Connectivity_ -PCI-E 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
Slots_
AMD Ryzen series CPUs_ 2 x PCI Express 3.0 x16 Slots (PCIE1: x16 mode; PCIE4: x4 mode)*
AMD Ryzen series CPUs_ 2 x PCI Express 3.0 x16 Slots (PCIE1: x8 mode; PCIE4: x4 mode) (If you use Athlon 2xxGE series APU, PCIE1 slot will run at x4 mode.)
AMD Athlon series CPUs_ 2 x PCI Express 3.0 x16 Slots (PCIE1: x4 mode; PCIE4: x2 mode)*
Other Features_ 4 x PCI Express 2.0 x1 Slots
-Supports AMD Quad CrossFireX and CrossFireX**
Note_ *Supports NVMe SSD as boot disks (If M2_1 is occupied, PCIE4 will be disabled.)
**This feature is only supported with Ryzen Series CPUs (Vermeer, Matisse, Cezanne, Renoir, Summit Ridge, Pinnacle Ridge, Picasso, and Raven Ridge).
Storage_
Storage Memory Support_ -4 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0, RAID 1, and RAID 10), NCQ, AHCI, and Hot Plug*
-2 x SATA3 6.0 Gb/s Connectors by ASMedia ASM1061, support NCQ, AHCI, and Hot Plug
-1 x Ultra M.2 Socket (M2_1), supports M Key type 2230/2242/2260/2280 M.2 PCI Express module up to Gen3 x4 (32 Gb/s) (with Vermeer, Matisse, Cezanne, Renoir, Picasso, Summit Ridge, Raven Ridge, and Pinnacle Ridge) or Gen3 x2 (16 Gb/s) (with Athlon series
-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)**
Note_ *M2_2, SATA3_3, and SATA3_4 share lanes. If either one of them is in use, the others will be disabled.
**If M2_1 is occupied, PCIE4 will be disabled.
-Supports NVMe SSD as boot disks
-Supports ASRock U.2 Kit
Connector_
Connector Support_ -1 x COM Port Header
-1 x TPM Header
-1 x Power LED and Speaker Header
-1 x RGB LED Header*
-1 x Addressable LED Header**
-1 x AMD Fan LED Header***
-1 x CPU Fan Connector (4pin)****
-1 x CPU/Water Pump Fan Connector (4pin) (Smart Fan Speed Control)*****
-3 x Chassis/Water Pump Fan Connectors (4pin) (Smart Fan Speed Control)******
-1 x 24 pin ATX Power Connector
-1 x 8 pin 12V Power Connector
-1 x Front Panel Audio Connector
-2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Supports ESD Protection)
-1 x USB 3.1 Gen1 Header (Supports 2 USB 3.1 Gen1 ports) (Supports ESD Protection)
Note_ *Supports in total up to 12V/3A, 36W LED Strip
**Supports in total up to 5V/3A, 15W LED Strip
***The AMD Fan LED Header supports LED strips of maximum load of 3A (36W) and length up to 2.5M.
****The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power.
*****The CPU/Water Pump Fan supports the water cooler fan of maximum 2A (24W) fan power.
******The Chassis/Water Pump Fan supports the water cooler fan of maximum 2A (24W) fan power.
-CPU_FAN2/WP, CHA_FAN1/WP, CHA_FAN2/WP, and CHA_FAN3/WP can auto-detect if a 3pin or 4pin fan is in use.
Rear Panel I/O_
Rear Panel Ports_ -1 x PS/2 Mouse/Keyboard Port
-1 x HDMI Port
-1 x DisplayPort 1.2
-1 x Optical SPDIF Out Port
-2 x USB 2.0 Ports (Supports ESD Protection)
-1 x USB 3.1 Gen2 TypeA Port (10 Gb/s) (Supports ESD Protection)
-1 x USB 3.1 Gen2 TypeC Port (10 Gb/s) (Supports ESD Protection)
-4 x USB 3.1 Gen1 Ports (Supports ESD Protection)*
-1 x RJ45 LAN Port with LED (ACT/LINK LED and SPEED LED)
-HD Audio Jacks: Rear Speaker / Central / Bass / Line in / Front Speaker / Microphone (Gold Audio Jacks)
Note_ *Ultra USB Power is supported on USB3_34 ports.
-ACPI wake-up function is not supported on USB3_34 ports.
Software and UEFI_
Software_ -ASRock Motherboard Utility (ATuning)
-ASRock Polychrome Sync
-ASRock XFast LAN
UEFI_ -ASRock Full HD UEFI
-ASRock Instant Flash
-ASRock Easy RAID Installer
Note_ *These utilities can be downloaded from ASRock Live Update & APP Shop.
Support CD_
Driver & Software Support_ Drivers, Utilities, AntiVirus Software (Trial Version), Google Chrome Browser, and Toolbar
Hardware Monitor_
Motherboard Monitoring Features_ -Temperature Sensing: CPU, MB
-Fan Tachometer: CPU, CPU/Water Pump, Chassis/Water Pump Fans
-Quiet Fan (Auto adjust Chassis Fan speed by CPU Temperature): CPU, CPU/Water Pump, Chassis/Water Pump Fans
-Fan multispeed Control: CPU, CPU/Water Pump, Chassis/Water Pump Fans
-Voltage monitoring: +12V, +5V, +3.3V, Vcore
OS_
Supported OS_ Microsoft Windows 10 64bit / 11 64bit*
Note_ *Summit Ridge does not officially support Windows 11.
Unique Feature_
ASRock USB 3.1 Gen2_ -ASRock USB 3.1 Gen2 TypeA Port (10 Gb/s)
-ASRock USB 3.1 Gen2 TypeC Port (10 Gb/s)
ASRock Super Alloy_ -XXL Aluminum Alloy Heatsink
-Premium 60A Power Choke
-Nichicon 12K Black Caps (100% Japan-made high-quality conductive polymer capacitors)
-I/O Armor
-Sapphire Black PCB
-High-Density Glass Fabric PCB
-2oz Copper PCB
-ASRock Steel Slot
-ASRock Full Coverage M.2 Heatsink
-ASRock Ultra M.2 (PCIe Gen3 x4)
-ASRock Ultra USB Power
-ASRock Full Spike Protection (for all USB, Audio, LAN Ports)
-ASRock Live Update & APP Shop
Certifications_
Motherboard Certifications_ -FCC, CE
-ERP/EuP ready (ErP/EuP ready power supply is required)
Accessories_
In The Box_ Quick Installation Guide, Support CD, I/O Shield
-2 x SATA Data Cables
-2 x Screws for M.2 Sockets
-1 x Standoff for M.2 Socket
Form Factor_ ATX Form Factor: 12.0-in x 9.6-in, 30.5 cm x 24.4 cm
Dimension_ 36.07 x 30.48 x 7.62 cm
Specification: ASRock B450 Steel Legend ATX Gaming Motherboard | AMD Ryzen Series CPU Support | AMD AM4 Socket | Max 128GB Memory Support
Product Type_
Motherboards

CPU PLATFORM_
AMD

CPU SOCKET_
AM4

Recommended reading:ASRock B460M-HDV m-ATX Motherboard

FORM FACTOR_
ATX

EAN, GTIN, UPC_
4717677338065

Brand_
Asrock

CHIPSET_
AMD B450

MAXIMUM MEMORY_
128 GB

Recommended reading:Gigabyte B365M D3H Motherboard

IDEAL FOR GAMING_
YES

WARRANTY_
3 Years Warranty