Biostar B450MX-S User Manual

Chapter 4: Useful help | 25
B450MX / B450MX-S
Code Descripon
70 South Bridge DXE inializaon is started
71 South Bridge DXE SMM inializaon is started
72 South Bridge devices inializaon
78 South Bridge DXE Inializaon (South Bridge module specic)
79 ACPI module inializaon
90 Boot Device Selecon (BDS) phase is started
91 Driver connecng is started
92 PCI Bus inializaon is started
93 PCI Bus Hot Plug Controller Inializaon
94 PCI Bus Enumeraon
95 PCI Bus Request Resources
96 PCI Bus Assign Resources
97 Console Output devices connect
98 Console input devices connect
99 Super IO Inializaon
9A USB inializaon is started
9B USB Reset
9C USB Detect
9D USB Enable
A0 IDE inializaon is started
A1 IDE Reset
A2 IDE Detect
A3 IDE Enable
A4 SCSI inializaon is started
A5 SCSI Reset
A6 SCSI Detect
A7 SCSI Enable
A8 Setup Verifying Password
A9 Start of Setup
AB Setup Input Wait
AD Ready To Boot event
AE Legacy Boot event
AF Exit Boot Services event
B0 Runme Set Virtual Address MAP Begin
B1 Runme Set Virtual Address MAP End
B2 Legacy Opon ROM Inializaon
B3 System Reset
B4 USB hot plug
B5 PCI bus hot plug
B6 Clean-up of NVRAM
B7 Conguraon Reset (reset of NVRAM sengs)

Biostar B450MX-S Specifications

General

Processor socket	Socket AM4
Processor manufacturer	AMD
Compatible processor series	AMD Athlon, AMD Ryzen 3, AMD Ryzen 3 2nd Gen, AMD Ryzen 3 3rd Gen, AMD Ryzen 5, AMD Ryzen 5 2nd Gen, AMD Ryzen 5 3rd Gen, AMD Ryzen 7, AMD Ryzen 7 2nd Gen, AMD Ryzen 7 3rd Gen, AMD Ryzen 9 3rd Gen
Audio chip	Realtek ALC887
Component for	PC
Motherboard chipset	AMD B450
Audio output channels	7.1 channels
Motherboard form factor	micro ATX
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	1866, 2133, 2400, 2667, 2933, 3200, 3600, 4000, 4066, 4133, 4200, 4266, 4333 MHz
RAID levels	0, 1, 10
RAID support	Yes
Supported storage drive types	HDD
Supported storage drive interfaces	M.2, SATA III
DirectX version	12.0
Parallel processing technology support	-
USB 2.0 connectors	2
USB 3.2 Gen 1 (3.1 Gen 1) connectors	1
USB 3.2 Gen 2 (3.1 Gen 2) connectors	0
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.
LAN controller	Realtek RTL8111H
Ethernet interface type	Gigabit Ethernet
BIOS type	UEFI AMI

Weight and Dimensions

Width	244 mm