Can I overclock the CPU on this board?

No. The B840 chipset does not support CPU overclocking. Memory tuning is available, but core multiplier changes are not.

Which Ryzen processors does it support?

It uses the AM5 socket and supports Ryzen 7000 and 9000 series processors, including Ryzen 9. Check Asus's CPU support list for the exact BIOS version needed.

How much memory can I install?

Up to 192 GB of DDR5 across the DIMM slots.

Do I need a separate Wi-Fi card?

No. Wi-Fi is built into the board, so you do not need an add-in card or USB adapter.

It is a full ATX board, so it needs an ATX or larger case. It will not fit micro-ATX or mini-ITX cases.

Is this a good board for a high-end Ryzen 9 build?

It works, but the VRM and port count are modest for a top Ryzen 9 under sustained load. A TUF or ROG X870 board is a better match for that tier.

Asus Prime B840-PLUS WIFI-CSM Gaming Desktop Motherboard

Best price now

$201.98at WalmartChecked Nov 10

Prices are checked against each store and labelled with when.

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Asus Prime B840-PLUS WIFI-CSM Gaming Desktop Motherboard

Best price now

$201.98at WalmartChecked Nov 10

Prices are checked against each store and labelled with when.

Visit Walmart

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Price facts

Last seen at $201.98 at Walmart on Nov 10.

Our take on the Asus Prime B840-PLUS WIFI-CSM Gaming Desktop Motherboard

The Asus Prime B840-PLUS WIFI-CSM is a full-size ATX motherboard for AMD's AM5 socket, built on the B840 chipset. It supports Ryzen 7000 and 9000 series processors and up to 192 GB of DDR5 memory across its DIMM slots. The Prime line is Asus's value tier: you get the essentials and onboard Wi-Fi without the overclocking tools and extra lanes of the pricier ROG and TUF boards. It suits builders who want a stable, roomy AM5 board for a mid-range gaming or work PC rather than a tuning platform.

Best forMid-range AM5 gaming buildsFirst-time PC builders who want a full ATX boardWork and home-office desktops that need Wi-FiBuyers who want DDR5 headroom without paying for overclocking features

Pros

Full ATX layout leaves room for large graphics cards and multiple drives
Onboard Wi-Fi saves a separate card or adapter
Supports up to 192 GB of DDR5 for memory-heavy work
AM5 socket covers Ryzen 7000 and 9000 series chips
Asus Prime boards are known for simple, well-documented BIOS setup

Cons

B840 chipset lacks CPU overclocking and the PCIe lanes of X870 boards
Fewer USB and M.2 ports than premium AM5 boards
No high-end audio codec or premium networking found on TUF and ROG models
VRM is modest for top-tier Ryzen 9 chips under sustained load

Asus Prime B840-PLUS WIFI-CSM Gaming Desktop Motherboard prices at every store

WalmartNew
In stockSold by Newegg Inc.Returns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
$201.98Free shippingChecked Nov 10
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What reviewers say

Owner feedback on Asus Prime AM5 boards is generally positive on stability and ease of setup, with the usual complaint that the value tier trims ports and overclocking headroom.

What people mention

SetupPraisedOwners say the BIOS is easy to navigate and the board boots without fuss.
ConnectivityMixedOnboard Wi-Fi is welcome, but buyers note fewer USB and M.2 ports than premium boards.
OverclockingCriticisedThe B840 chipset does not support CPU overclocking, which limits tuning.
MemoryPraisedDDR5 support is stable and the board accepts large memory kits.
BuildMixedThe ATX layout is roomy, but the VRM is modest for high-end Ryzen 9 chips.

About the Asus Prime B840-PLUS WIFI-CSM Gaming Desktop Motherboard

The ASUS Prime B840-PLUS WIFI-CSM is an ATX gaming desktop motherboard built on the AMD B840 chipset. It uses a Socket AM5 processor socket and supports Ryzen 9 and Ryzen 7 processors.

It supports up to 192 GB of DDR5 SDRAM.

Brand: ASUS
Model: PRIME B840-PLUS WIFI-CSM
Chipset: AMD B840
CPU socket: Socket AM5
Form factor: ATX
Processors: Ryzen 9, Ryzen 7
Memory type: DDR5 SDRAM
Max memory: 192 GB

Specifications

size: ATXSource

Questions and answers

Can I overclock the CPU on this board?: No. The B840 chipset does not support CPU overclocking. Memory tuning is available, but core multiplier changes are not.
Which Ryzen processors does it support?: It uses the AM5 socket and supports Ryzen 7000 and 9000 series processors, including Ryzen 9. Check Asus's CPU support list for the exact BIOS version needed.
How much memory can I install?: Up to 192 GB of DDR5 across the DIMM slots.
Do I need a separate Wi-Fi card?: No. Wi-Fi is built into the board, so you do not need an add-in card or USB adapter.
Will it fit my case?: It is a full ATX board, so it needs an ATX or larger case. It will not fit micro-ATX or mini-ITX cases.
Is this a good board for a high-end Ryzen 9 build?: It works, but the VRM and port count are modest for a top Ryzen 9 under sustained load. A TUF or ROG X870 board is a better match for that tier.
Where is the Asus Prime B840-PLUS WIFI-CSM Gaming Desktop Motherboard cheapest?: At Walmart, for $201.98, as of our latest check.
What do buyers say about the Asus Prime B840-PLUS WIFI-CSM Gaming Desktop Motherboard?: Rated 3 out of 5 from 2 ratings.