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MSI B450M MORTAR MAX AMD Socket AM4 Motherboard

CCL Code: MBD2689
Manufacturer Code: B450M MORTAR MAX
| Manufacturer: MSI

Key Features:

  • Socket AM4
  • AMD B450 Chipset
  • 4 x SATA & 8 x USB Ports
  • DDR4 (max 64GB, 4 slots)
  • HDMI and Display Port
  • mATX Form Factor

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1 Flash BIOS Button
2 PS/2 Combo Port
3 usb 3.2 Gen1
4 usb 3.2 Gen2 (Type A+C)
5 Golden audio jacks with S/PDIF
6 Arsenal Sticker Area
Free for customization with personal style
7 Extended Heatsinks Design
Leading heatsink design, extended for maximum cooling and performance
8 Heavy plated gaming heatsinks
Military styles designed for maximum cooling
9 DDR4 Boost
Optimized traces and isolated memory circuitry
10 Turbo M.2
Delivering speeds up to 32Gb/s using Gen3 x4
11 PCI-E Steel Armor
Protecting VGA cards against bending and EMI
12 Audio Boost
Optimized gaming audio using best components
MSI B450M MORTAR MAX overview
With more cores’ processors, thermal and power design is more important to make sure the temperature keeps lower. MSI extended PWM and enhanced circuit design ensures even high-end CPU to run in full speed with MSI motherboards.
Extended Heaysink
Run into trouble when updating your BIOS? Simply flash the old BIOS version back and continue gaming within minutes with Flash BIOS Button. Flash BIOS Button even works without a CPU, memory or graphics card installed!
No CPU/DDR/VGA required Connect power Insert dongle with BIOS file Use Flash BIOS hotkey/button
No CPU/DDR/VGA required Connect power Insert dongle with BIOS file Use Flash BIOS hotkey/button
Enjoy a blazing fast system boot up and insanely quick loading of applications and data. Delivering speeds up to 32Gb/s per device using Gen3 x4, Turbo M.2 is over 5 times faster than a regular SATA III connection!
Performance NVM
Turbo M.2
Maximize your USB Device performance
Transfer your favorite games, music and movies over USB faster than ever. MSI offers a wide variety of options to connect and boost your usb 3.2 devices, delivering lightning-fast transfer speeds!
speed up with X-Boost
MSI X-Boost performance
Reversible connector


Reversible connector USB Type-C
Core Boost
Core Boost technology combines MSI’s premium layout and optimized power design which allows for faster and undistorted current delivery to the CPU at pin-point precision. Not only supporting multi-core CPU, also creating the perfect conditions for your CPU.
Customize your Gaming Rig
Personalize your PC with 16.8 million colors and 10 effects through Mystic Light RGB LED. Controlled in one click with the Mystic Light APP or a mobile device.
MSI B450M MORTAR MAX Mystic Light
Customize colors Customize effects Mystic Light App
Works with certified Mystic Light Sync products:
Mystic Light Sync logo Mystic Light vendors
Amplify your Game with Audio Boost
Like a dedicated sound card Audio Boost offers a HD audio processor, dedicated amplifier and high quality audio capacitors, all physically isolated from the rest of the motherboard circuitry to ensure the purest audio signal to locate enemies with pin-point accuracy.
Isolated Audio with Line High-quality Audio capacitors
Isolated audio design with Isolated Audio with Line High-quality Audio Capacitors
Audio Boost Ohm graph
Unmatched Memory Performance
MSI motherboards are crammed with features to fuel your gaming rig’s memory with more speed, higher overclockability and increased stability.
Memory Signal Purity MSI MSI caption Others MSI caption
DDR4 Boost performance
Best compatibility
Optimized traces and a fully isolated memory circuitry ensures perfect stability and performance, so you never have to worry about your system crashing during games.
Best compatibility chart
Your in-game advantage
Outsmart and outperform your opponents in-game using an array of unique MSI GAMING tools. Clever hardware & software tools, created to keep you one step ahead of the competition and boost your skills.
Gaming Hotkey Gaming Device port
Gaming Hotkey Gaming Device port
Multi GPU
1 second overclocking
Game Boost 1 second overclocking
Immerse yourself into Virtual Worlds
Integrating the very best of cutting edge technologies on MSI hardware provides a smooth Mixed Reality, Augmented Reality and Virtual Reality ride. Through joint efforts with major VR brands, combined with unique MSI features to optimize VR, MSI brings gamers and professionals a vivid and realistic experience in which content truly comes alive.
Microsoft HoloLens HTC Vive

Main Features

  • Supports 1st, 2nd and 3rd Gen AMD Ryzen™ / Ryzen™ with Radeon™ Vega Graphics and 2nd Gen AMD Ryzen™ with Radeon™ Graphics / Athlon™ with Radeon™ Vega Graphics Desktop Processors for Socket AM4
  • Supports DDR4 Memory, up to 4133(OC) MHz
  • Extended Heatsink Design: MSI extended PWM and enhanced circuit design ensures even high-end processors to run in full speed.
  • Lightning Fast Game experience: 1x TURBO M.2, AMD Turbo USB 3.2 GEN2, Store MI technology
  • Core Boost: With premium layout and fully digital power design to support more cores and provide better performance.
  • DDR4 Boost: Advanced technology to deliver pure data signals for the best gaming performance and stability
  • MULTI-GPU: With PCI-E STEEL ARMOR slot. Supports 2-Way AMD Crossfire™
  • Flash BIOS Button: Simply use a USB key to flash any BIOS within seconds, without installing a CPU, memory or graphics card.
Motherboard Bundles

CCL Motherboard Bundles offer exceptional value for money, great performance and peace of mind. They are perfect for anyone looking to upgrade an older PC or to make a solid foundation to build a new one. All CCL bundles come with a 3 year parts and labour warranty as standard – why risk compatibility problems when these fantastic pre-assembled bundles are available?

  • AMD Ryzen 5 3600 3.6GHz
  • 16GB Adata DDR4 Memory
  • No Graphics
  • 3 Years Warranty


CPU Socket Socket AM4
Installed Processors (Max) 0 (1)
Supported Processor Manufacturer AMD
Supported Processors 1st, 2nd and 3rd Gen AMD Ryzen™/ Ryzen™ with Radeon™ Vega Graphics and 2nd Gen AMD Ryzen™ with Radeon™ Graphics/ Athlon™ with Radeon™ Vega Graphics Desktop Processors
64-bit Support Yes
Socket AM4

Rear Panel I/O Ports

USB Ports 1 x USB 3.1 Type-C
1 x USB 3.1 Type-A
4 x USB 3.0
2 x USB 2.0
DisplayPorts 1 x DisplayPort
HDMI Port 1 x HDMI
Keyboard/Mouse Combo Port 1 x PS/2
RJ-45 Ports 1 x RJ-45
Audio Line In Ports 1 x 3.5mm Jack
Audio Line Out Ports 3 x 3.5mm Jacks
Microphone In Port 1 x 3.5mm Jack
S/PDIF Port 1 x S/PDIF Optical Out

Internal I/O Connectors

SATA Connectors 4 x SATA III
USB Connectors 1 x USB 3.0
2 x USB 2.0
Front Panel Connectors 1 x Front Panel
1 x Front Audio
Cooling Fan Support 1 x CPU fan
3 x System fans
Parallel Connectors 1 x Parallel
Serial Connectors 1 x COM
Chassis Intrusion Connector 1 x Chassis Intrusion
TPM Header 1 x TPM
Power Connector Port 1 x 20+4-pin ATX
1 x 4+4-pin EPS
Other Connectors 1 x M.2, Key M (Type 2242/2260/2280)
2 x 5050 RGB LED strip headers


Memory Bus Speed 2667/ 2800/ 2933/ 3000/ 3066/ 3200/ 3466/ 3733/ 3866/ 4000/ 4133 MHz
Memory Type DDR4
Maximum RAM 64 GB
Memory Slot 4 x DIMM


Chipset Manufacturer AMD
Northbridge B450
RAID Supported Yes
RAID Format RAID 0, 1, 10
SATA Supported Yes


Number of PCI Express Slots 1 x PCI Express 3.0 x16
1 x PCI Express 2.0 x16 (@ x4)
2 x PCI Express 2.0 x1

Graphics Device

Integrated Graphics Supported Yes


Integrated Sound Realtek® ALC89


Integrated Network Realtek® RTL8111H-CG
Network Speeds Supported 10/100/1000 Mbps
Wireless LAN No
Bluetooth No

System Requirements

Operating Systems Supported Microsoft Windows 10 64-bit


Jumpers 1 x Clear CMOS
SLi/Crossfire Features Supports 2-Way AMD® CrossFire™ Technology


Form Factor MicroATX Motherboard
In The Box Motherboard
User Manual
Shout Out Card
2 x SATA Cables
Driver Disc
Warranty Card
Quick Installation Guide
I/O Shield
Width 244 mm
Length 244 mm

Key Features

RGB Header Type 4-Pin RGB
Addressable RGB No
Firewire No
Wireless Network No
Socket(s) AM4
Memory Channel Dual
On-board Audio Type 7.1
Number of SATA Ports 4 port(s)
Number of USB Ports 8 port(s)
SATA III Support Yes
USB 3.0 Support Yes
Multi GPU Support ATi CrossFire
VGA Connection No
DVI Connection No
HDMI Connection Yes
DisplayPort Connection Yes
Motherboard Form Factor mATX
Motherboard Power Connectors 8-Pin
Motherboard Chipset AMD B450
Thunderbolt No
Motherboard Model MSI B450M MORTAR MAX
USB 3.1 Support Yes
Internal USB3.0 Header Yes
M.2 Support Yes
On-board RGB Control MSI Mystic Sync
Skip Audio Test No


Warranty 1 Year

Item Details

Manufacturer MSI
Manufacturer Code B450M MORTAR MAX
EAN 4719072653811
UPC 824142189573
Condition New

Warranty Information

Warranty 1 Year

Manufacturer Information

Manufacturer MSI
Manufacturer Code B450M MORTAR MAX
Questions and Answers

Do you have you a question about the MSI B450M MORTAR MAX AMD Socket AM4 B450 Chipset MicroATX Motherboard?

Q: Will this be updated to support 5th gen CPUs e.g. 5600X, 5800X etc.
Answer by Website User on 29th July 2021
This will not have the supported bios out of the box. - Kristian N
0 customers found this answer helpful.
Post Answer
Q: Will this be compatible with the Ryzen 3 3200g out of the box?
Answer by Kristian on 23rd April 2021
I can confirm this will be compatible right out of the box. - Kristian N
0 customers found this answer helpful.
Post Answer
Q: Would this motherboard require a BIOS update to support a 3600x? If so would it support a 2600x installed to update it?
Answer by Website User on 16th April 2020
will work with any 3 series CPU even 3950 straight out of the box check on MSI WEB Yourself look at reviews say on Amazon etc hope that helps Arthur ps 3 Series chips don't like Windows 7
2 customers found this answer helpful.
Post Answer
Q: Can i use a ryzen 3900x with this board?
Answer by Website User on 16th April 2020
YES check yourself on MSI Site read reviews on say Amazon etc The 3 Series cpu Don't like Windows 7
0 customers found this answer helpful.
Post Answer
4 / 5 28 reviews


last month

It is great and working well so far.

Cairns Turnbull

3 months ago

Great, other than the fact that MSI got their own instructions wrong for flash-updating the BIOS to make it compatible with the Ryzen 5000 series. It's picky about the USB drive size, make and file type, and NOT as MSI describes. The motherboard will also NOT auto shutdown by itself and in fact reset and remained (I assume) in BIOS indefinitely. The I/O shield also fits poorly.

Mr Johnson

7 months ago

Great AM4 MB used with a Ryzen 5 3600 processor and Radeon RX5600XT graphics card to replace failed AM2+ system. Worked straight from the box with no need to update the bios. A slightly cheaper, scaled down, version of the Tomahawk Max, but still has two M.2 ports and 4 RAM slots.


8 months ago

Amazing motherboard with fantastic specs all for a brilliant price. Fantastic customer service too!


8 months ago

No problems so far. it is now running 3600 memory, with the Ryzen 5


11 months ago

Great product, safely packaged and delivered quickly. Couldn't ask for more of a quality prompt service


12 months ago

The audio quality over the microphone on this motherboard is by default atrocious, a very annoying static sound will make people on voicechat request that you stay quiet. The way to remedy this seems to be: - Download and install the latest audio drivers from MSI - Uninstall the Realtek Audio Console - Make sure you have reboot at this point - Open up "Realtek HD Audio Manager" from the window system tray - Go to the microphone settings and - - Enable "Noise Suppression" - - Lower the recording volume to +0.0dB or +10dB (higher gives an annoying static sound) You do however become less understandable because noise supression alters the way things get recorded. Cheapest motherboard with a SPDIF audio connection I could find that also comes with decent VRM cooling. On the flip side, the VRM cooling is unnecessarily high which caused a problem with my Alpenfhn Brocken 2 CPU cooler. I had to slightly lift the fan up for it to fit as it was colliding with the VRM cooling - that in turn made the fan sit awfully close to the sidepanel of my case a Cooler Master NR400. I had rotate the CPU cooler 180 to have its RAM clearance side provide the clearance for the motherboard heatsink. Then I had to swap my memory out for the lowest profile memory I could find so that the side that wasn't made for RAM clearance became a tight squeeze for the RAM.

Geoff Plant

12 months ago

I have not done it yet so I will report back after it is running.


September 2020

great motherboard with decent features for the price, paired with a ryzen 5 3600 cpu and 16gb of 3200 ram it makes a great gaming rig.


August 2020

Great price for an amazing motherboard, looks great too!


July 2020

A very good value board for a micro ATX case. The box came a bit mashed but the board itself was not damaged.


July 2020

If you dont need more than one PCIe (assuming youre putting in a chunky GPU which will cover the other PCI slots), this motherboard is a really solid bet. It will be futureproofed with AMDs Ryzen 3 technology, so has loads of potential there. RAM support is great and over locking is super simple. It really is made for tweaking with bios support for novice OCers. Voltages are robust and at this price point Im struggling to see why I would even consider upgrading to newer mobo given prices versus performance across generations. For a no nonsense, solid motherboard, your search stops here.

Ole Bjerkan

June 2020

Great Motherboard with good looks and functionality


May 2020

Very nice mobo and it worked without a snag, but I was confused (it turns out) by the detail on the second M.2 slot (M.2_2). I found it very confusing that it turned out to be NVME only (not M.2 sata) and that it was only running at PCIe 2.0. Both of those details took me a while to dig out because they seemed so counter intuitive to what I expected. I just thought it would be the same as the M.2_1 - stupid boy!!!

Adrian Wilson

May 2020

Paired with 1600AF and 3200 DDR4 CL16. Out of the box the CPU down clocks the ram to 2400ghz but the Mortar max has profiles to adjust this with ease. CPU running at 4.0ghz @~1.26v, ~64c at full load on the stock cooler, no issues. The mainboard has an led strip underneath the right hand side.


May 2020

Perfect starting point for my second ever build. Downsizing to this from my ATX asus build was a good decision (way too much unused space in my ATX case and a lot of unused pci slots). This appeared to be the best value mATX MB on the market. Once everything was assembled it booted up first time! Happy with the service provided by CCL, all components arrived earlier than expected!


April 2020

Solid b450 board, looks to be the best in the mATX range. Good bios and good features.

Mark Cook

April 2020

All good except if you use m.2 cannot use corresponding pci.


April 2020

Fantastic motherboard. no need for bios update for newer cpu's. good looks and fantastic quality. red led on rhs of motherboard (not sure if you can change the colour)


March 2020

This mATX motherboard has all the fittings of the normal atx. I was struggling to find a mATX with 4 ram slots. This is perfect for anyone who needs the extra slots and only has a small case. Very easy to install and the rgb on the side of the motherboard can easily be changed or synced with the cpu fan.


March 2020

Easy to use well laid out motherboard, runs cool enough and 3rd gen ryzen processors work without issues. BIOS is a bit awkward to find some CPU features and figuring out how to save configuration to profiles however when you figure it out it isn't too bad. Overall best package if you need a ryzen 3 mATX motherboard with 2 x16 for expansion, comes with a great manual for inexperienced system builders.


March 2020

I have it up and running with relative ease and it's now running 'folding@home' medical research for COVID19. Check it out and contribute surplus computer capacity.

col D

March 2020

Its a grate all rounder

Peter Bystricky

February 2020

As good as it gets for the money


January 2020

Great mobo

Jack Zhao

December 2019

Great MB for mine 3700x, was thinking a more expensive x570 board at the beginning but it's not necessary to spend a 80-100 more with basically the same performance. End of the day, it's easy to build and happy to work with, would recommend to those who like a simple but reliable MB. The extra M.2 slot won me over compared to the tomahawk max.


December 2019

great MB for 3rd gen AMD CPUs. micro ATX but easy to install and has plenty slots

Rory Brady

November 2019

Very easy to work with. Paired with an rx 590 and an AMD Ryez 5 3600 - Everything is running perfectly. Fast delivery.