MSI B850M MORTAR WIFI Motherboard Review

Spencer_E

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Introduction Today, we have the MSI MAG B850M MORTAR WIFI, one of MSI’s latest M-ATX form factor motherboards. As a reminder, the MAG line-up from MSI is the lowest level of their three main tiers (MEG, MPG, and MAG) of products, and as it is designed to be the go-to for the no-frills gamer at […]

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Pretty sure this was my 2nd choice when I was looking for a B850M board. I can't remember for sure, but at the time, there was an MSI board that was only available overseas, and this looks a lot like it and if I remember correctly, that board only just recently became available in North America. The main deal breaker I had with this board, and it shouldn't stop anyone else unless they have similar concerns, is that I didn't like the idea of having my drives underneath the GPU. Between the heat of a 5090 and whatever gets produced for a gen5 NVMe, I had my concerns about the two adding heat to each other.

I also found it interesting about the 12+2+1 configuration, but at 60a per stage. One of the more unique configurations I came across when researching smaller boards.

Otherwise, for users who don't have extreme needs, it looks like a nice board. Plenty of fan headers, 2 drives, lots of ports, and a good selection at that and okay price given what AM5 micro boards go for on average. Generally speaking, I usually prefer MSI boards as I've had some pretty good experiences with them in my AMD builds (except for some odd BT/WiFi driver issues here and there).
 
MSIs B850 MPower would be my vote, but I've seen rumors that it will only be available in Asia:


(also, the Mortar looks good, thanks Spencer for the review!
 
Hate to nick pick. Looks like auto correct took a type for Muted and turned it into the word smutted. While it is a word... I don't think it's the word you intended. I hate when Autocorrect does crap like that to me. It's in the first page.
 
Ok what kit is that... i don't NEED 256 gigs of ram... but just dont need 16 cores or a 4tb pcie5 nvme either.
 
Ok what kit is that... i don't NEED 256 gigs of ram... but just dont need 16 cores or a 4tb pcie5 nvme either.
I don't think you're gonna like the price. It's not a single kit, the only single 4x64GB kits you can get are G.Skill 6000C32/34/36 using Samsung M-die, and I really don't care to bother with any DDR5 except Hynix.

It's two of these kits: https://www.newegg.com/p/0RN-00MB-000S4

Although I paid the extra $10 each for the kits that include dummy RGB DIMMs because the standalone kits ship from Taiwan and I didn't want to risk customs or tariff issues on the purchase - https://www.newegg.com/p/0RN-00MB-000S5

It's currently the only way to get high binned Hynix 32Gbit M-die.

I just stuck each matched pair to a channel so they would have (hypothetically) better matching for training.

I honestly didn't expect it to even POST at EXPO 6400, I figured I would have to run them at 6000C30/32, if even that. A very pleasant surprise that it.. did post and has been running without issues so far. I have a big pile of testing to do to validate that its actually stable. It takes... a long time to test that much ram on a dual channel platform.
 
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