Asus PRIME B840M-A AMD Ryzen AM5 DDR5 Micro ATX Motherboard - 90MB1J10-M0EAYC
Upgrade your PC with the Asus PRIME B840M-A-CSM motherboard, designed for AMD Ryzen AM5 processors. This Micro ATX board supports DDR5 memory, ensuring lightning-fast performance and efficient multitasking. Enjoy advanced connectivity options, durable components, and a user-friendly BIOS setup. Perfect for gamers and creators alike.
Features
General
| SKU | 7E8-434-B0B |
Features
| Brand | Asus |
| Model Number | 90MB1J10-M0EAYC |
| Motherboard Chipset | B840 Chipset (Ryzen AM5) |
| CPU Socket Type | AM5 |
| Memory Type | DDR5 |
| Outputs | DisplayPort, HDMI |
| Form Factor | Micro ATX |
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Description
Asus PRIME B840M-A-CSM AMD Ryzen AM5 DDR5 Micro ATX Motherboard - 90MB1J10-M0EAYC
Asus PRIME B840M-A-CSM AMD Ryzen AM5 DDR5 Micro ATX Motherboard
Experience unparalleled performance and reliability with the Asus PRIME B840M-A-CSM, an advanced Micro ATX motherboard designed for AMD Ryzen processors. Built on the robust AM5 platform, this motherboard supports DDR5 memory, enabling lightning-fast data transfer speeds and improved overall system responsiveness. Whether you are a gamer, content creator, or professional in need of a stable computing environment, the PRIME B840M-A-CSM caters to all your demands.
One of the standout features of the Asus PRIME B840M-A-CSM is its dual-channel DDR5 memory support. Unlock the full potential of your system with support for high-capacity memory modules, ensuring smooth multitasking and exceptional performance in memory-intensive applications. With speeds reaching up to 6400 MHz, your gaming sessions and demanding workflows can be executed with seamless efficiency.
The motherboard incorporates an array of connectivity options, including USB 3.2 Gen 2 Type-A and Type-C ports, ensuring fast data transfer rates for all your peripherals. Additionally, the inclusion of PCIe 5.0 slots opens up new possibilities for high-speed storage solutions and cutting-edge graphics cards, making it a perfect choice for future-proofing your build. Enjoy enhanced graphics performance and enjoy every gaming or creative experience to its fullest.
Cooling is paramount in any build, and the Asus PRIME B840M-A-CSM excels in this area as well. Equipped with comprehensive cooling options, including fan headers and dedicated M.2 slots with heat sinks, this motherboard ensures optimal thermal performance. Keep your system cool under pressure, whether you're rendering videos or diving into intense gaming action.
The user-friendly BIOS interface simplifies system customization and enables users to tweak performance settings effortlessly. With AI overclocking capabilities, fine-tuning your system for maximum efficiency has never been easier. The intuitive design allows even beginners to take advantage of advanced features without hassle.
Safety and durability are paramount, which is why the Asus PRIME B840M-A-CSM is designed with high-quality components and comprehensive protection measures. Overvoltage protection, anti-static safeguards, and enhanced electrostatic discharge (ESD) protection ensure your investment remains secure and operates reliably throughout its lifespan.
Choosing the Asus PRIME B840M-A-CSM means embracing future-ready technology with features that cater to every aspect of modern computing. Whether you are building a new gaming rig or upgrading an existing setup, this motherboard is engineered to meet the demands of today's applications. Its combination of performance, connectivity, and durability makes it a top contender in the Micro ATX motherboard market.
Optimize your computing power with the Asus PRIME B840M-A-CSM AMD Ryzen AM5 DDR5 Micro ATX Motherboard. Perfect for gamers, professionals, and enthusiasts who seek high performance and reliability in their systems. Make the smart choice for your next build and experience the difference that quality components can make.
Specification
CPU
AMD Socket AM5 for AMD Ryzen™ 9000 & 8000 & 7000 Series Desktop Processors*
* Refer to https://www.asus.com/support/download-center/ for CPU support list.
Chipset
AMD B840 Chipset
Memory
4 x DIMM slots, max. 192GB, DDR5
Support up to 7600+MT/s (OC) with Ryzen™ 9000 & 8000 & 7000 Series Processors, ECC and Non-ECC, Un-buffered DIMM*
Dual channel memory architecture
Supports AMD Extended Profiles for Overclocking (EXPO™)
ASUS Enhanced Memory Profile (AEMP)
* Supported memory types, data rate (speed), and number of DRAM modules vary depending on the CPU and memory configuration, for more information please refer to CPU/Memory
Support list under the Support tab of product information site or visit https://www.asus.com/support/download-center/.
* Non-ECC, un-buffered DDR5 memory supports On-Die ECC function.
Graphics
2 x DisplayPort**
1 x HDMI™ port***
* Graphics specifications may vary between CPU types. Please refer to AMD CPU specifications.
** Supports max. 8K@30Hz as specified in DisplayPort 1.4.
*** Supports 4K@60Hz as specified in HDMI 2.1.
Expansion Slots
AMD Ryzen™ 9000 & 7000 Series Desktop Processors*
1 x PCIe 4.0 x16 slot (supports x16 mode)
AMD Ryzen™ 8000 Series Desktop Processors
1 x PCIe 4.0 x16 slot (supports x8/x4 mode)
AMD B840 Chipset
2 x PCIe 3.0 x16 slots (support x1 mode)
* Please check the PCIe bifurcation table on the support site (https://www.asus.com/support/FAQ/1037507/).
* Specifications vary by CPU types.
- To ensure compatibility of the device installed, please refer to https://www.asus.com/support/download-center/ for the list of supported peripherals.
Storage
Total supports 3 x M.2 slots and 4 x SATA 6Gb/s ports*
AMD Ryzen™ 9000 & 8000 & 7000 Series Desktop Processors
M.2_1 slot (Key M), type 2280 (supports PCIe 4.0 x4 mode)
M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode)
AMD B840 Chipset
M.2_3 slot (Key M), type 2280 (supports PCIe 3.0 x4 mode)
4 x SATA 6Gb/s ports
* AMD RAIDXpert2 Technology supports both PCIe RAID 0/1/5/10 and SATA RAID 0/1/5/10. RAID 5 Function is only supported by AMD Ryzen™ 9000 series CPU.
Ethernet
1 x Realtek 2.5Gb Ethernet
ASUS LANGuard
Wireless & Bluetooth®
Wi-Fi 6E
2x2 Wi-Fi 6E (802.11ax)
Supports 2.4/5/6GHz frequency band*
Bluetooth® v5.3**
* WiFi 6E 6GHz regulatory may vary between countries, supported only in Windows 11 or later.
** The Bluetooth® version may vary, please refer to the Wi-Fi module manufacturer's website for the latest specifications.
USB
Rear USB (Total 7 ports)
2 x USB 10Gbps ports (2 x Type-A)
1 x USB 5Gbps port (1 x USB Type-C®)
4 x USB 2.0 ports (4 x Type-A)
Front USB (Total 7 ports)
1 x USB 5Gbps connector (supports USB Type-C®)
1 x USB 5Gbps header supports 2 additional USB 5Gbps ports
2 x USB 2.0 headers support 4 additional USB 2.0 ports
Audio
Realtek 7.1 Surround Sound High Definition Audio CODEC*
- Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking
- Supports up to 24-Bit/192 kHz playback
Audio Features
- Audio Shielding
- Premium audio capacitors
- Dedicated audio PCB layers
* A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output.
Back Panel I/O Ports
2 x USB 10Gbps ports (2 x Type-A)
1 x USB 5Gbps port (1 x USB Type-C®)
4 x USB 2.0 ports (4 x Type-A)
2 x DisplayPort
1 x HDMI™ port
1 x Wi-Fi module
1 x Realtek 2.5Gb Ethernet port
3 x Audio jacks
1 x BIOS FlashBack™ button
Internal I/O Connectors
Fan and Cooling Related
1 x 4-pin CPU Fan header
1 x 4-pin CPU OPT Fan header
1 x 4-pin AIO Pump header
3 x 4-pin Chassis Fan headers
Power Related
1 x 24-pin Main Power connector
1 x 8-pin +12V CPU Power connector
Storage Related
3 x M.2 slots (Key M)
4 x SATA 6Gb/s ports
USB
1 x USB 5Gbps connector (supports USB Type-C® )
1 x USB 5Gbps header supports 2 additional USB 5Gbps ports
2 x USB 2.0 headers support 4 additional USB 2.0 ports
Miscellaneous
3 x Addressable Gen 2 headers
1 x Clear CMOS header
1 x COM Port header
1 x Front Panel Audio header (F_AUDIO)
1 x S/PDIF Out header
1 x SPI TPM header (14-1 pin)
1 x 10-1 pin Front System Panel header
Special Features
ASUS 5X PROTECTION III
- DIGI+ VRM
- LANGuard
- Overvoltage protection
- SafeSlot Core+
- Stainless-steel back I/O
ASUS Q-Design
- Q-Antenna
- Q-Dashboard
- Q-DIMM
- Q-LED Core
- Q-Slot
ASUS Thermal Solution
- M.2 heatsink
- VRM heatsink design
ASUS EZ DIY
- BIOS FlashBack™ button
- BIOS FlashBack™ LED
- Pre-mounted I/O shield
Aura Sync
- Addressable Gen 2 headers
Software Features
ASUS Exclusive Software
Armoury Crate
- Aura Creator
- Aura Sync
- Fan Xpert 2+
- Power Saving
ASUS DriverHub
ASUS GlideX
TurboV Core
ASUS CPU-Z
Norton 360 Deluxe (60 Days Free Trial)
WinRAR (40 Days Free Trial)
UEFI BIOS
ASUS EZ DIY
- ASUS CrashFree BIOS 3
- ASUS EZ Flash 3
- ASUS UEFI BIOS EZ Mode
- ASUS MyHotkey
BIOS
256 Mb Flash ROM, UEFI AMI BIOS
Manageability
WOL by PME, PXE
Accessories
Cables
2 x SATA 6Gb/s cables
Miscellaneous
1 x ASUS WiFi Q-Antenna
1 x M.2 rubber package
3 x Screw packages for M.2 SSD
Documentation
1 x Quick start guide
Operating System
Windows 11, Windows 10 64-bit
Form Factor
micro-ATX Form Factor
9.6 inch x 9.6 inch (24.4 cm x 24.4 cm)
Dimension
Product (mm)_ L*W*H
244mm*244mm*50mm
Color Box (mm)_ L*W*H
275mm*275mm*67.5mm
Weight
Motherboard only
0.93kg
Full package
1.52kg
Reviews
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