Gigabyte B450M DS3H WIFI User Manual

BIOS (Basic Input and Output System) records hardware parameters of the system in the CMOS on the
motherboard. Its major functions include conducting the Power-On Self-Test (POST) during system startup,
saving system parameters and loading operating system, etc. BIOS includes a BIOS Setup program that allows
the user to modify basic system conguration settings or to activate certain system features.
When the power is turned off, the battery on the motherboard supplies the necessary power to the CMOS to
keep the conguration values in the CMOS.
To access the BIOS Setup program, press the <Delete> key during the POST when the power is turned on.
To upgrade the BIOS, use either the GIGABYTE Q-Flash or @BIOS utility.
• Q-Flash allows the user to quickly and easily upgrade or back up BIOS without entering the operating system.
• @BIOS is a Windows-based utility that searches and downloads the latest version of BIOS from the Internet
and updates the BIOS.
For instructions on using the Q-Flash and @BIOS utilities, please navigate to the "Unique Features" page of
GIGABYTE's website and search for "BIOS Update Utilities."
Chapter 3 BIOS Setup
• Because BIOS ashing is potentially risky, if you do not encounter problems using the current
version of BIOS, it is recommended that you not ash the BIOS. To ash the BIOS, do it with
caution. Inadequate BIOS ashing may result in system malfunction.
• It is recommended that you not alter the default settings (unless you need to) to prevent system
instability or other unexpected results. Inadequately altering the settings may result in system's
failure to boot. If this occurs, try to clear the CMOS values and reset the board to default values.
• Refer to the introductions of the battery/clear CMOS jumper in Chapter 2 or navigate to the "BIOS
Setup" page of GIGABYTE's website and search for "Load Optimized Defaults" for how to clear
the CMOS values.
& Please visit GIGABYTE's website for details on conguring BIOS Setup.
https://www.gigabyte.com/WebPage/940/amd400-bios.html
- 21 -

Gigabyte B450M DS3H WIFI Specifications

General

Processor manufacturer	AMD
Compatible processor series	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
Supported processor sockets	Socket AM4
Maximum number of SMP processors	1
Maximum internal memory supported by processor	128 GB
ECC	Yes
Memory channels	Dual-channel
Memory slots type	DIMM
Number of memory slots	4
Supported memory types	DDR4-SDRAM
Supported memory clock speeds	2133, 2400, 2667, 2933, 3200, 3466, 3600 MHz
Supported memory clock speed (max)	3600 MHz
Supported memory module capacities	4GB, 8GB, 16GB, 32GB
Wi-Fi standards	802.11a, 802.11ad, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
Bluetooth version	4.2
Top Wi-Fi standard	Wi-Fi 5 (802.11ac)
WLAN controller model	Realtek RTL8821CE
Ethernet interface type	Gigabit Ethernet
USB 2.0 connectors	2
Number of Parallel ATA connectors	0
USB connector type	USB Type-A
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
Number of storage drives supported	5
Supported storage drive interfaces	M.2, SATA III
Bundled software	Norton Internet Security, cFosSpeed
BIOS type	UEFI AMI
ACPI version	5.0
BIOS memory size	128 Mbit
System Management BIOS (SMBIOS) version	2.7
DirectX version	12.0
Maximum resolution	4096 x 2160 pixels
Maximum graphics card memory	16000 MB
Parallel processing technology support	Not supported
Audio chip	Realtek ALC887
Component for	PC
Product color	Brown
Power source type	ATX
Motherboard chipset	AMD B450
PC health monitoring	FAN, Temperature, Voltage
Audio output channels	7.1 channels
Motherboard form factor	micro ATX
Windows operating systems supported	Windows 10 x64, Windows 7 x64
Warranty period	3 year(s)
Battery type	CR2032
Battery weight	3 g
Battery technology	Lithium-Manganese Dioxide (LiMnO2)
Country of origin	China
Quantity per shipping (inner) case	1 pc(s)
Package width	265 mm
Package height	54 mm
Package weight	950 g

Weight and Dimensions

Height	35 mm