MSI B450M Mortar Max AM4 mATX Motherboard

CHIPSET

AMD® B450 Chipset

MEMORY

4 x DDR4 memory slots, support   up to 64GB

Supports 1866/ 2133/ 2400/   2667Mhz (by JEDEC)

For AMD Ryzen Gen3 (R5/R7/R9)

Supports 2667/ 2800/ 2933/   3000/ 3066/ 3200/ 3466/ 3733/ 3866/ 4000/ 4133 MHz (by A-XMP OC MODE)

For AMD Other CPU

Supports 2667/ 2800/ 2933/   3000/ 3066/ 3200/ 3466 MHz (by A-XMP OC MODE)

Dual channel memory   architecture

Supports non-ECC UDIMM memory

Supports ECC UDIMM memory   (non-ECC mode)

SLOTS

1 x PCIe 3.0 x16 slot (PCI_E1)

Supports x16 speed with 1st, 2nd and 3rd Gen AMD   Ryzen™ processors

Supports x8 speed with Ryzen™ with Radeon™ Vega   Graphics and 2nd Gen AMD Ryzen™ with Radeon™ Graphics processors

Supports x4 speed with AMD® Athlon™ with Radeon™   Vega Graphics Processors

1 x PCIe 2.0 x16 slot (PCI_E4, supports x4 mode)1

2 x PCIe 2.0 x1 slots2

PCI_E4 slot will be unavailable when an M.2 SSD   is installed in the M2_2 slot.PCI_E2 slot will be unavailable when an   expansion card is installed in the PCI_E3 slot.

ONBOARD GRAPHICS

1 x DisplayPort, support a maximum resolution of   4096x2304 @60Hz, 2560x1600 @60Hz, 3840x2160 @60Hz, 1920x1200 @60Hz1,2

1 x HDMI™ 1.4 port, supports a maximum resolution   of 4096x2160 @30Hz, 2560x1600 @60Hz1,2

Only support when using AMD® Ryzen™ with Radeon™   Vega Graphics and 2nd Gen AMD Ryzen™ with Radeon™ Graphics/ Athlon™ with   Radeon™ Vega Graphics ProcessorsMaximum shared memory of 2048 MB

MULTI-GPU

Supports 2-Way AMD® CrossFire™   Technology

STORAGE

AMD® B450 Chipset

4 x SATA 6Gb/s ports1

1 x M.2 slots (M2_2, Key M)1

Supports PCIe 2.0 x4 2242/ 2260 /2280 storage   devices

AMD® CPU

1x M.2 slot (M2_1, Key M)1

Supports PCIe 3.0 x4 (1st, 2nd and 3rd Gen AMD   Ryzen™/ Ryzen™ with Radeon™ Vega Graphics and 2nd Gen AMD Ryzen™ with Radeon™   Graphics) or PCIe 3.0 x2 (AMD® Athlon™ with Radeon™ Vega Graphics)and SATA   6Gb/s 2242/ 2260 /2280 storage devices

PCI_E4 slot will be unavailable when an M.2 SSD   is installed in the M2_2 slot.

RAID

AMD® B450 Chipset

Supports RAID 0, RAID 1 and RAID 10 for SATA   storage devices

Supports RAID 0 and RAID 1 for M.2 NVMe RAID

USB PORTS

AMD® B450 Chipset

1 x USB 3.2 Gen2 (SuperSpeed   USB 10Gbps) Type-C port on the back panel

1 x USB 3.2 Gen2 (SuperSpeed   USB 10Gbps) Type-A port on the back panel

2 x USB 3.2 Gen1 (SuperSpeed   USB) ports available through the internal USB 3.2 Gen1 connector

6 x USB 2.0 (High-speed USB)   ports (2 Type-A ports on the back panel, 4 ports available through the   internal USB 2.0 connectors) AMD® CPU

AMD® Processor

4 x USB 3.2 Gen1 (SuperSpeed   USB) Type-A ports on the back panel

AUDIO

Realtek® ALC892 Codec

7.1-Channel High Definition   Audio

Supports S/PDIF output

LAN

1 x Realtek® RTL8111H-CG Gigabit   LAN controller

INTERNAL CONNECTORS

1 x 24-pin ATX 12V power connector

1 x 8-pin ATX 12V power connector

4 x SATA 6Gb/s connectors

2 x USB 2.0 connectors (support additional 4 USB   2.0 ports)

1 x USB 3.2 Gen1 connector (support additional 2   USB 3.2 Gen1 ports)

1 x 4-pin CPU fan connector

3 x 4-pin system fan connectors

2 x 5050 RGB LED strip 12V connectors

1 x TPM module connector

1 x Front panel audio connector

2 x System panel connectors

1 x Chassis Intrusion connector

1 x Clear CMOS jumper

1 x Serial Port connector

1 x Parallel Port connector

BACK PANEL PORTS

Flash BIOS Button

PS/2 Combo Port

DisplayPort

LAN Port

USB 3.2 Gen2 Type A

HD Audio Connectors

USB 2.0 Ports

HDMI Port

USB 3.2 Gen1

USB 3.2 Gen2 Type C

Optical S/PDIF OUT

DIMENSIONS

9.6 in. x 9.6 in. (24.4 cm x 24.4 cm)

m-ATX Form Factor

MOUNTING

8 mounting holes

OPERATING SYSTEM

Support for Windows® 10 64-bit

Support for Windows® 7 64-bit

* To support Windows® 7 64-bit,   you must install an AMD Pinnacle Ridge & Summit Ridge CPU.