MSI B450I Gaming Plus AC AM4 Mini-ITX Motherboard

BH #MSB450IGMPLA • MFR #B450I GAMING PLUS AC
MSI B450I Gaming Plus AC AM4 Mini-ITX Motherboard
Key Features
  • Mini-ITX Form Factor
  • AMD B450 Chipset
  • Socket AM4
  • 2 x Dual-Channel DDR4-3466 (OC)
The B450I Gaming Plus AC AM4 Mini-ITX Motherboard from MSI is built on the AMD B450 chipset, supporting AMD Ryzen series processors with an AM4 socket. It has two RAM slots that can hold up to 32GB of dual-channel DDR4 memory at speeds of up to 3466 MHz when overclocked. For storage, there are four SATA III ports and a single M.2 slot, which can operate at up to 32 Gb/s when used with a compatible NVMe drive. While this motherboard is equipped with DisplayPort and HDMI ports for onboard graphics, it also has a PCIe 3.0 x16 slot for a dedicated GPU. Other notable features include Realtek ALC887 7.1-channel HD audio, Intel I211AT Gigabit LAN, 802.11ac Wi-Fi, and Bluetooth 4.2.
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MSI B450I Gaming Plus AC Overview

  • 1Description
  • 2Cooling
  • 3Storage
  • 4Memory
  • 5Audio
  • 6Additional Features

The B450I Gaming Plus AC AM4 Mini-ITX Motherboard from MSI is built on the AMD B450 chipset, supporting AMD Ryzen series processors with an AM4 socket. It has two RAM slots that can hold up to 32GB of dual-channel DDR4 memory at speeds of up to 3466 MHz when overclocked. For storage, there are four SATA III ports and a single M.2 slot, which can operate at up to 32 Gb/s when used with a compatible NVMe drive. While this motherboard is equipped with DisplayPort and HDMI ports for onboard graphics, it also has a PCIe 3.0 x16 slot for a dedicated GPU. Other notable features include Realtek ALC887 7.1-channel HD audio, Intel I211AT Gigabit LAN, 802.11ac Wi-Fi, and Bluetooth 4.2.

Please note that this motherboard does not currently support the AMD Ryzen 5000 series processors at this time. Support will be added through a BIOS update later in January, 2021.

Cooling
This motherboard is equipped with two fan headers that support both DC and PWM modes, so you adjust their speeds either manually or automatically within BIOS or a third-party software to find a balance between cooling and noise.
Storage
There are four SATA III ports on this motherboard designed for traditional 2.5" and 3.5" drives. Moreover, it's also equipped with a single M.2 slot, which can utilize the PCIe 3.0 x4 interface for speeds up of up 32 Gb/s when used with a compatible NVMe drive. For an additional boost in performance, you can enable X-Boost within MSI's software.
Memory
The DDR4 memory slots on this motherboard are built with an optimized memory layout to offer stability, performance, and low power consumption. Additionally, this motherboard supports XMP for enhanced RAM speeds.
Audio
MSI Audio Boost consists of both hardware and software additions that are designed to provide you with a high-quality listening experience. The left and right channels are built on separate PCB layers, De-Pop Protection prevents loud popping noises, an EMI-shielded audio processor ensure clean stereo and surround sound, and a dedicated headphone amplifier automatically detects the optimal impedance for your headphones. For gaming, Nahimic 3 provides you with virtual surround sound with an in-game overlay that displays where noises are coming from.
Additional Features
  • Gaming Hotkey
  • Gaming Device Port
  • Game Boost
  • AMD STOREMI
  • LAN Protect
  • EZ Debug LED
  • Steel Armor
  • Command Center
  • Live Update
  • RAMDisk

MSI B450I Gaming Plus AC Specs

General
Chipset
AMD B450
CPU Socket
AM4
Back Panel I/O
USB
2x USB-A (USB 2.0)
4x USB-A (USB 3.0 / 3.1/3.2 Gen 1)
Display
1x DisplayPort
1x HDMI 1.4
Audio
3x 1/8" / 3.5 mm
Ethernet / Controller
1x Realtek 8111H Gigabit
PS/2
1x Combo
Wi-Fi Antenna
2x Connector
Memory
Memory Slots
2x 288-Pin
Memory Support
DDR4 1866, 2133, 2400, 2667, 2800, 2933, 3000, 3066, 3200, 3466 MHz
Maximum Capacity
32 GB
Channel Architecture
Dual Channel
ECC Support
Non-ECC, ECC (Non-ECC Mode) Unbuffered
Storage Expansion
SATA
4x SATA III
M.2
1x M Key 2280 (PCIe 3.0 x4, SATA III)
U.2
No
RAID Support
RAID 0, 1, 10 (SATA)
Internal I/O
Expansion Slots
1x PCIe 3.0 x16
USB
1x USB 2.0 Header (Supports 2 USB-A Port)
1x USB 3.0 / 3.1/3.2 Gen 1 Header (Supports 2 USB-A Port)
Multi-GPU Support
No
Air Cooling
1x 4-Pin CPU
1x 4-Pin System
Power Connectors
1x 24-Pin Mainboard
1x 8-Pin CPU
Security
Chassis Intrusion
LED Header
2x RGB
Audio
No
Diagnostics
Clear CMOS
Front Panel I/O
Front Panel I/O
AAFP, USB 3.0 / 3.1/3.2 Gen 1
Audio
Audio Codec
Realtek ALC887 (7.1-Channel)
Wireless
Bluetooth
4.2
Wi-Fi
Wi-Fi 5 (802.11ac) (MU-MIMO)
Module Support
1 E Key M.2
Software
Supported Operating Systems
Windows 10 (64-Bit)
Windows 7 (64-Bit)
Physical
Form Factor
Mini-ITX
Dimensions
6.7 x 6.7" / 170.18 x 170.18 mm
Packaging Info
Package Weight
1.83 lb
Box Dimensions (LxWxH)
9 x 7.7 x 2.7"

MSI B450I Gaming Plus AC Reviews

See any errors on this page? Let us know

will this support Ryzen 3 3100?

will this support Ryzen 3 3100?
Asked by: Joseph
Yes, the MSI B450I Gaming Plus AC AM4 Mini-ITX Motherboard BH #MSB450IGMPLA supports the Ryzen 3 3100.
Answered by: Miguel
Date published: 2020-10-27

WIll this support Ryzen 9 3900x or Ryzen 7 4700?

WIll this support Ryzen 9 3900x or Ryzen 7 4700?
Asked by: Rrj
While compatible, you may need to perform a BIOS update depending on which rev of the motherboard you get. Performing a BIOS update will require an older processor which you can get from AMD directly from their loaner library.
Answered by: Nilson D
Date published: 2020-10-02

can I add 2 80mm case fans?

can I add 2 80mm case fans?
Asked by: maurice
had no problems adding the fans, thanks.
Answered by: maurice
Date published: 2020-07-09

Will this support Ryzen 5 3600 or will it require ...

Will this support Ryzen 5 3600 or will it require a BIOS update?
Asked by: Sungjun
Yes the board will run the 3000 series fine but it will need a bios update. Make sure to update the bios by side loading through the bold bios once you install the CPU if you can not update prior to installing the new CPU.
Answered by: Anonymous
Date published: 2020-01-30

question

is the memory 2667 speed on the website wrong? Or is it really not a 2666 speed?
Asked by: Anonymous
DDR 2667 is correct.
Answered by: Reuben
Date published: 2019-08-16

Will this support the Zen 3?

Will this support the Zen 3?
Asked by: Mario
It does support it with the latest BETA BIOS. I have 5800x on another build but I put it on the B450I Gaming Plus AC to make sure it does work because eventually that same 5800x will end up in there.
Answered by: Johnny
Date published: 2021-01-08
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