ASROCK B450 Steel Legend User Manual

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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 Conguration (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 rst Error Handling
Enable/disable PFEH, cloak individual banks, and mask deferred error interrupts from each
bank.
Core Performance Boost
Disable CPB.
Enable IBS
Enables IBS through MSRC001_1005[42] and disables SpecLockMap through
MSRC001_1020[54].
Global C-state Control
Controls IO based C-state generation and DF C-states.

ASROCK B450 Steel Legend Specifications

General

Processor socket	Socket AM4
Processor manufacturer	AMD
Compatible processor series	AMD A
Maximum number of SMP processors	1
Wi-Fi	No
Ethernet LAN	Yes
LAN controller	Realtek RTL8111H
Ethernet interface type	Gigabit Ethernet
Memory channels	Dual-channel
Memory slots type	DIMM
Number of memory slots	4
Supported memory types	DDR4-SDRAM
Maximum internal memory	128 GB
Supported memory clock speeds	2133, 2400, 2667, 2933, 3200, 3533 MHz
Supported memory clock speed (max)	3533 MHz
Supported memory module capacities	4GB, 8GB, 16GB, 32GB
Audio chip	Realtek ALC892 / Realtek ALC897
Certification	FCC, CE
Component for	PC
Motherboard chipset	AMD B450
PC health monitoring	CPU, FAN, Temperature, Voltage
Audio output channels	7.1 channels
Motherboard form factor	ATX
Windows operating systems supported	Windows 10 x64, Windows 11 x64
DirectX version	12.0
Maximum resolution	4096 x 2160 pixels
Maximum graphics card memory	2048 MB
Parallel processing technology support	CrossFireX, Quad-GPU CrossFireX
Number of M.2 (M) slots	2
USB 3.2 Gen 2 (3.1 Gen 2) connectors	0
BIOS type	UEFI AMI
ACPI version	5.1
BIOS memory size	128 Mbit
System Management BIOS (SMBIOS) version	2.3
Cables included	SATA
HDMI version	1.4
DisplayPort version	1.2
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
RAID levels	0, 1, 10
Supported storage drive types	HDD & SSD
Supported storage drive interfaces	M.2, SATA III
Harmonized System (HS) code	84733020

Weight and Dimensions

Depth	244 mm
Width	305 mm