Update BIOS motherboard MSI B450M Bazooka Max WiFi This is a critical procedure for ensuring stable computer operation, especially if you plan to install a new Ryzen 5000 series processor. Many users experience problems with the system refusing to boot or operating unstably after purchasing a new CPU, and the solution lies in the latest microcode version.
Modern motherboards from Micro-Star International equipped with convenient utilities such as M-Flash, which allow you to flash the firmware directly from the BIOS menu without having to boot into the operating system. This significantly simplifies the process and reduces the risk of errors related to Windows drivers or background processes.
In this article, we'll cover every step of preparation, file download, and firmware installation so you can safely upgrade your PC. You'll learn how to properly prepare the media, where to find a reliable firmware source, and what precautions to take to avoid bricking your motherboard.
Why do you need to update your motherboard BIOS?
The main reason why owners The MSI B450M Bazooka Max WiFi is currently undergoing a firmware update to support new processors. The chipset B450 It was originally designed for second- and third-generation Ryzen processors, but the manufacturer has released updates that allow the installation of more powerful Ryzen 5000 series CPUs.
In addition to adding compatibility with new hardware, new microcode versions often contain fixes for security vulnerabilities such as Spectre and Meltdown, and also improve RAM stability. Overclocking potential can also be better revealed thanks to optimized voltage operation algorithms.
Sometimes an update is required to fix software bugs that can cause spontaneous reboots, problems with USB ports, or unstable operation of the wireless module. WiFiIf your system is working perfectly and you don't plan to upgrade your processor, there may be no need to rush to install the latest version.
- 🚀 Added support for Ryzen 5000 series processors.
- 🛡️ Critical system security vulnerabilities have been fixed.
- ⚡ Improved compatibility with high-frequency RAM.
- 🐛 Fixed bugs in interfaces and peripherals.
⚠️ Note: If your current BIOS version is stable and you are not upgrading your processor, updating may not provide noticeable improvements, but it always carries a minimal risk of resetting your settings.
Preparing for firmware: tools and requirements
Before beginning the procedure, make sure you have a working USB drive with a capacity of up to 32 GB. It is advisable to use a flash drive that does not contain important data, as it will be formatted with a file system during the preparation process. FAT32.
You will also need a stable internet connection to download the firmware file from the manufacturer's official website. Avoid using third-party resources or torrent trackers, as a corrupted file may cause motherboard failure.
It is important to ensure uninterruptible power supply to your computer during the process. If you have an uninterruptible power supply (UPS)(UPS), connect the system unit to it to eliminate the risk of power surges or sudden power outages.
☑️ Check before updating
Make sure you know the exact model of your board. In our case, it's B450M Bazooka Max WiFiPlease note the word "WiFi" as the regular version Bazooka Max without a prefix, there may be differences in the layout, although the firmware procedure is identical.
Finding and downloading the latest BIOS version
To obtain the firmware file, you need to go to the official support website MSIEnter the exact model name in the website's search bar or find it in the list of motherboards with the B450 chipset.
On the support page, select the "Support" tab, then go to the "BIOS" section. Here you'll see a list of all available versions sorted by release date.
Choose the version marked Stable, if you are a regular user, or Beta, if you need a specific fixed feature that is known from the release notes. Download the archive, unzip it, and copy the firmware file (usually with the extension .ROM or .CAP) to the root of your USB flash drive.
| BIOS version | Release date | Key changes | Stability |
|---|---|---|---|
| 7C02vH0 | 2023-05-12 | Improved memory compatibility | Stable |
| 7C02vG0 | 2022-11-04 | Ryzen 5000 CPU support | Stable |
| 7C02vF0 | 2021-08-20 | AGESA microcode update | Stable |
| 7C02vE0 | 2020-12-15 | Basic Ryzen 3000 support | Stable |
What is AGESA?
AGESA is a set of microcode from AMD that is integrated into the motherboard BIOS. It is responsible for initializing the processor, memory, and interfaces. AGESA updates often resolve compatibility issues with new CPUs.
Do not attempt to rename the firmware file manually unless instructed otherwise. System M-Flash It identifies the correct file by its internal header, but it is better to leave the original name to avoid confusion.
Setting up BIOS before starting the update
Once the file is copied to the flash drive, insert it into a USB port, preferably a 2.0 port on the back of the motherboard, and turn on the computer. To enter the BIOS settings menu, press the [key] immediately after powering on. Delete or F2.
Once in the interface Click BIOS 5, press the key F7to switch to Advanced Mode if you're in EZ Mode. Advanced Mode offers more settings and utilities.
Go to the "Settings" tab and find the "Advanced" item. Here you need to make sure that the SATA operating mode is configured correctly (usually AHCI), and also check that the system sees your flash drive.
If you have RAM overclocking enabled (XMP/DOCP), these settings will be reset after updating the BIOS. You'll need to re-enable the profile, so make sure you know your memory settings.
⚠️ Note: BIOS interfaces may vary slightly depending on the version. If you don't see a section, search for a similar one or consult the user manual on the MSI website.
The firmware process via M-Flash
This is the most crucial step. In the BIOS menu, find the button M-FlashIt may be located at the bottom of the screen or a dedicated button in the interface. When pressed, the system will warn you about a reboot—confirm the action.
The computer will reboot and enter a special firmware update mode. In the window that opens on the left, select your USB flash drive, and in the file list on the right, find the previously downloaded firmware file.
After selecting the file, the system will ask for final confirmation. Click "Yes" or "OK." The update process will begin, accompanied by a progress bar. It is strictly forbidden to turn off the computer, press any buttons, or remove the flash drive until the process is completely completed and automatically reboots.
The entire process takes 2 to 5 minutes. The screen may go blank, and the fans may change speed—this is normal. Wait for the system to reboot automatically.
Actions after a successful update
After the first reboot, the system may take longer than usual to start up while it trains its memory. Don't panic if the computer shuts down and restarts several times—this is part of the initialization process for the new microcode.
Enter the BIOS again and check the firmware version at the top of the screen or in the "System Information" section. Make sure the version number matches the one you installed.
Now you need to restore the performance settings. Enable the profile. XMP For your RAM, adjust the fan speed and check the processor temperature under load.
If the system is unstable, try resetting the BIOS settings via the "Load Optimized Defaults" option again, saving the changes and rebooting.
Solution and restoration
In rare cases, the update may fail. If the computer won't turn on or the screen is black, try resetting the BIOS using the jumper. JBAT1 on the motherboard (short-circuit the contacts with a metal object when the power is off for 10 seconds).
Model B450M Bazooka Max WiFi There is no Flash BIOS Button on the rear panel, so recovery is only possible through reflashing with a programmer or retrying via M-Flash if the menu is called up.
If you lose USB ports or sound after updating, the file may have been corrupted during download. Redownload the archive, verify the checksum, and repeat the process with a different flash drive.
Is it possible to update BIOS without a processor?
No, the M-Flash utility requires a working processor. This model does not support CPU-less flashing because it does not have a dedicated BIOS Flashback button.
Will Windows reset after an update?
The operating system itself and its files will not be affected. However, chipset drivers may fail, and Windows may require reactivation if the hardware configuration changes significantly.
How to roll back BIOS to an older version?
In the M-Flash menu, you can select a file from an older BIOS version if it's present on the flash drive. However, some versions are protected against downgrades, and downgrading may not be possible.