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MSI

MSI Performance Gaming AMD Ryzen 1st and 2nd Gen AM4 M.2 USB 3 DDR4 HDMI Display Port Mini-ITX Motherboard (B450I GAMING Plus AC)

  • Based on 1,181 reviews
Condition: Used - Good
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Availability: Only 1 left in stock, order soon!
Fulfilled by InfinityProduct

Arrives Nov 28 – Dec 1
Order within 6 hours and 31 minutes
Available payment plans shown during checkout

Style: B450I GAMING PLUS AC


Features

  • Support AMD Ryzen 1st and 2nd Generation / Ryzen with Radeon Vega Graphics Processors for Socket AM4
  • Supports 32gb dual channel ddr4 memory 1866/ 2133/ 2400/ 2667 MHz by jedec, and 2667/ 2800/ 2933/ 3000/ 3066/ 3200/ 3466 MHz by a xmp oc mode
  • VR ready: Automatically optimizes your system for VR usage, pushing for maximum performance
  • In game weapons: Game boost, gaming hotkey, x boost
  • Gaming certified 24 hour on and offline game and motherboard testing by esports players. Form factor: Mini ITX

Brand: MSI


CPU Socket: Socket TR4


Compatible Devices: Personal Computer


RAM Memory Technology: DDR4


Compatible Processors: AMD 1st Gerenration Ryzen


Chipset Type: AMD B450


Memory Speed: 3466 MHz


Platform: Windows 7, Windows 10


Series: B450I GAMING PLUS AC


Memory Storage Capacity: 32 GB


RAM: ‎DDR4


Memory Speed: ‎3466 MHz


Number of USB 2.0 Ports: ‎2


Brand: ‎MSI


Series: ‎B450I GAMING PLUS AC


Item model number: ‎B450I GAMING PLUS AC


Item Weight: ‎1.52 pounds


Product Dimensions: ‎12.01 x 9.61 x 1.18 inches


Item Dimensions LxWxH: ‎12.01 x 9.61 x 1.18 inches


Computer Memory Type: ‎DDR4 SDRAM


Manufacturer: ‎MSI COMPUTER


Is Discontinued By Manufacturer: ‎No


Date First Available: ‎July 4, 2018


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Nov 28 – Dec 1

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Supports Ryzen 5 5600x! (MUST HAVE A 1000-2000 Ryzen series first!!!)
Style: B450I GAMING PLUS AC
This a board meant for those who are on a budget or looking to build a low to mid end build. It has good power delivery phase for mild overclocking, great quality components on board, and a good amount of port selections being an ITX board at a reasonable price!! Although many are having issues with using AMD’s Stealth coolers due to clearance issues, luckily I didn’t go through that since I decided to go for an AIO in my build. As the title says it works with my Ryzen 5 5600x!! And I’m serious, although before you think of getting one with this board I suggest you get a cheap 1000 series CPU or ask a friend to borrow a 1000 to 2000 series CPU to update the bios to a beta version from MSI, but if you’re lucky you might get a new stock that already has this updated BIOS unlike my case I didn’t so I had to update it. Before the cpu upgrade I had a R5 2600, while it’s still good it just wasn’t enough for my 3070TI (no brag here), so yeah it was time for an upgrade. I then got the 5600x put it in my system (with the updated bios installed already) and hey it worked perfectly, well with a few reboots what not but after that functioned normally. Checked task manager, CPU-Z, and even of course my bios to make sure that it’s reading everything correctly and it sure is. I even did a stress test with Prime-95 for about an hour, while I won’t showcase my temps and all it did not crash or freeze at all. As for gaming, it’s a major improvement for me, GPU now is being more utilized compared to 30-50 percent before. Although the major issue with this board has to do with ram, since Ryzen CPUS like faster ram I can only stay at 3200mhz at 18 16 16 38, even with A-XMP trying at 3333mhz it wouldn’t boot at all. Some of you guys might get lucky or it’s the fact that I need to configure my timings more, mind you I have the Corsair Vengance RGB PRO 16gb 3200mhz ram so yeah stock speeds and it works fine. With all that being said this is a great board especially if you have a current gen Ryzen CPU you don't have to worry about upgrading this board for a b550 for example just to support Ryzen 5000 series as it will work just fine with this board. ... show more
Reviewed in the United States on September 24, 2021 by Undecided

  • Needed BIOS update for Ryzen 5 3600. Still some trouble after.
Style: B450I GAMING PLUS AC
Fits with the Goodisory A02 case with Cooler Master MasterAir G200P RBG Low-Profile. Mine did not come compatible with the Ryzen 5 3600. It would not get to the POST or BIOS. I tried resetting CMOS by unplugging the battery and such, but nothing. This was my first build and I was not aware that in order to update the BIOS you first need a compatible CPU - which I had none. So I grudgingly bought a Ryzen 3 3200G from BestBuy, and luckily my board worked with the Ryzen 3. Updating the BIOs was not a huge deal, there are many tutorials online. However, you should note that the most recent MSI BIOS is not the red-color one with the graphs and curves you will see online. It's black and white. You might think you still have an older BIOS, but that's actually the new one that's compatible with Ryzen 3rd gen. It's missing some nice features, but will get you by. It took a while to figure out what version of the BIOS was installed for me. Look for the last two letters from the downloads page. Mine was “AC”. When I first updated the BIOS, I just stared at a blank screen. It did not reboot after 20min. So I just hard rebooted and I finally saw a BIOS. I was able to get Windows going after that. I was doing some stress tests with game emulation and Windows crashed several times, not sure if that was due to Windows or something with the CPU/Motherboard though. I decided to try the Ryzen 5 again … and again no POST or BIOS. I was pissed. Apparently this is not uncommon. For me, I decided I would just use the Ryzen 3 for now and stuck with that for an afternoon. But after doing more research, this is the only board I could find that's mini-ITX and SHOULD support Ryzen 5. I swapped out the CPU one last time … and it randomly started working!!! So maybe the trick is you gotta swap out the 3 and 5 a couple times. Since I’ve switched to the Ryzen 5, Windows has stopped crashing. Still, I experienced some weirdness on boot ups with the Ryzen 5 for the first few times. I can’t remember exactly. But after a couple times it started booting up normally and quickly. So that was an ordeal for me, considering this was my first build. Overall, I gave this a good score because once I got it working, I’m quite pleased with it overall. Setting it up was a huge headache though. Hope this helps someone. ... show more
Reviewed in the United States on August 19, 2020 by Spenser H.

  • Probably the best budget B450I
Style: B450I GAMING PLUS AC
This is probably the best B450I motherboard you can get at this price range. Have all the basic and overclocking functions. BIOS was a little confusing at first but you get used to it quickly. Sometimes it automatically switches the startup mode back to legacy after I set it to be UEFI; turned out it was the problem of my Razor keyboard. MSI said this motherboard was optimized for RAM overclocking, which is very true! I overclocked my Crucial Ballistix (2*8) from 3200 mhz to 3600 without even changing the voltage or the timings. Only downside is the wifi card is Intel 3168, which is just awful. I bought an ax200 myself and put that on the board. Everything works fine. Asrock also has a B450I at about the same price that comes with ax200, but I heard their BIOS isn't as good, so I picked this one. ... show more
Reviewed in the United States on October 14, 2022 by Amazon Customer

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