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ASUS PRIME B840M-A-CSM

Micro ATX Socket AM5 motherboard AMD B840 - 4x DDR5 - M.2 PCIe 4.0 - USB 3.1 - PCI-Express 4.0 16x - LAN 2.5 GbE - ASUS Corporate Stable Model (CSM)

Last price 169€95
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Overview

ASUS PRIME B840M-A-CSM

Based on the AMD B840 chipset, the ASUS PRIME B840M-A-CSM motherboard is designed to accommodate AMD Ryzen 7000/8000/9000 processors on socket AM5. It is ideal for assembling a gaming or professional configuration. More affordable than the B850 and X870 chipsets, it supports DDR5, PCI-Express 4.0 graphics cards and PCIe 4.0M.2 SSDs .

ASUS PRIME B840M-A-CSM plus points

  • Support for AMD Ryzen 7000/8000/9000 series processors
  • Ultra-fast connectivity: PCIe 4.0, M.2 slot, Ethernet Realtek 2.5 GbE, USB 3.1 10 Gbps
  • Full cooling: PCH heatsink and Fan Xpert
  • Aura Sync RGB lighting: integrated Gen 2 addressable connectors for LED strips, easily synchronised with Aura Sync-compatible hardware.

Play in the best conditions

The high frequencies of AMD Ryzen processors are a real advantage when it comes to gaming. Choose the right components and design a high-powered Gaming PC that's latency-free and ready when you are. Get the edge over your opponents and reach new heights with AMD Ryzen 9000/8000/7000 processors and AMD AM5 motherboards.

The AMD Ryzen 9000 processors deliver performance in every area. They'll help you create faster, achieve your goals faster and save time all the time.

Specifications
Select your criteria

General information

Product name

ASUS PRIME B840M-A-CSM

Brand

ASUS

Model

90MB1J10-M0EAYC

Processor

Processor support

AMD AM5

Number of CPUs supported

1

Chipset

Chipset

AMD B840

Memory

Memory format

4 X DIMM 288 pins (DDR5)

Memory Frequency(ies)

DDR5 7600 MHz
DDR5 7200 MHz
DDR5 7000 MHz
DDR5 6800 MHz
DDR5 6600 MHz
DDR5 6400 MHz
DDR5 6200 MHz
DDR5 6000 MHz
DDR5 4800 MHz
DDR5 5000 MHz
DDR5 5200 MHz
DDR5 5400 MHz
DDR5 5600 MHz
DDR5 5800 MHz

Memory type

DDR5

Memory technology

Dual Channel

Maximum RAM capacity per slot

48 GB

Maximum RAM capacity

192 GB

Graphic

Integrated graphics controller

No

Compatible graphics core integrated in the CPU

Yes

Expansion slots

Graphic connector(s)

1 X PCI Express 4.0 x16

Number and Type of slots

2 X PCI Express 3.0 x16 (x1)

Multi-GPU type

None

Audio

Audio Chipset

Integrated

Number of audio channels

8

Network

Number of ports/Ethernet controler

1 X Integrated Realtek 2.5 GbE

Network standard(s)

2.5 Gbps Gigabit Ethernet (2.5 GbE)

Wi-Fi

No

Storage

RAID supported

Yes

Hard drives connectors

1 X M.2 - PCI-E 3.0 x4
4 X Serial ATA 6Gb/s (SATA Revision 3)
2 X M.2 - PCI-E 4.0 x4

Number of M.2 slot(s)

3

Supported RAID Modes

5
10
0
1

Connectivity

Motherboard connector location

Standard connectors (on the motherboard)

Rear panel connectors

1 X USB 3.0 Type C
2 X DisplayPort Female
2 X USB 3.1
1 X RJ45 Female
BIOS Flash Update
3 X 3.5mm Jack Female Stereo
1 X HDMI Female
4 X USB 2.0

Additional connectors

3 X Addressable LED RGB connector(s)
1 X +12V (Power supply P8)
1 X ATX 24 Pin
4 X Internal USB 2.0
2 X Internal USB 3.0
1 X Internal S/PDIF
Front panel audio
Chassis intrusion
1 X Serial (RS-232)
1 X Internal USB 3.0 Type C

Physical characteristics

Motherboard format

Micro ATX

Length

244 mm

Width

244 mm

Equipment

Advanced overclocking features

No

Use

Multimedia
Office

LED

No

Warranties

Commercial warranty

Legal warranty

Safety Information

Responsible person

ASUS Computer GmbH

Postal address

Harkort STR. 21-23, 40880 RATINGEN, GERMANY

Electronic Address

ProducSafety@asus.com

Product referenced on 6 Jan 2025

Customer review
Global rating
10/10
based on 1 review Editorial and moderation guide
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  • by MathieuP
    Posted on 18 Mar 2025
    Bought on 16 Feb 2025 from LDLC
    Number of reviews: 2 Average rating: 10

    WAOUH!

    Top card!
    I just have to make do with a few less SATA ports than my previous card, but with the 3 slots for M2 drives, that shouldn't be a worry for very long.
    I'm more than satisfied with the performance.
    Tracking and delivery on time and in perfect condition: very professional.
    I'd definitely recommend it!

    Review automatically translated

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