ASUS PRIME B840M-A-CSM
Motherboard | micro ATX | Socket AM5 | AMD B840 Chipset | USB-C 3.2 Gen 1, USB 3.2 Gen 1 | 2.5 Gigabit LAN | onboard graphics (CPU required) | HD Audio (8-channel) | ASUS Corporate Stable Model (CSM)
RRP: £225.55 inc VAT
£130.21
inc VAT
£108.51 ex
VAT
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Delivery
Order by 4:30pm UK Time
(excluding weekends and Bank Holidays) for UK Mainland next working day delivery.
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7 Working Days£0.00
Within 1 week (UK Mainland), free if order over £100 + VAT
3 Working Days£4.98
3 working days (UK Mainland)
Next Working Day£7.97
Next working day (UK Mainland)
Main Specification
| Product Description | ASUS PRIME B840M-A-CSM - motherboard - micro ATX - Socket AM5 - AMD B840 |
|---|---|
| Product Type | Motherboard - micro ATX |
| Chipset Type | AMD B840 |
| Processor Socket | 1 x Socket AM5 |
| Compatible Processors | Ryzen (supports Ryzen 7000/8000/9000 Series) |
| Max RAM Size | 192 GB |
| RAM Supported | 4 DIMM slots - DDR5, non-ECC, on-die ECC, ECC, unbuffered |
| Storage Ports | 4 x SATA-600 (RAID), 3 x M.2 |
| USB / FireWire Ports | 1 x USB-C 3.2 Gen 1 + 2 x USB 3.2 Gen 2 + 4 USB 2.0 + (1 x USB-C 3.2 Gen 1 + 1 x USB 3.2 Gen 1 + 2 x USB 2.0 via headers) |
| Audio | HD Audio (8-channel) |
| LAN | 2.5 Gigabit Ethernet |
| Pricing Type | ASUS Corporate Stable Model (CSM) |
General
| Product Type | Motherboard - micro ATX |
|---|---|
| Chipset Type | AMD B840 |
| Processor Socket | Socket AM5 |
| Max Processors Qty | 1 |
| Compatible Processors | Ryzen (supports Ryzen 7000/8000/9000 Series) |
Supported RAM
| Max Size | 192 GB |
|---|---|
| Technology | DDR5 |
| Bus Clock | 3800 MHz (O.C.) |
| Supported RAM Integrity Check | Non-ECC, on-die ECC, ECC |
| Registered or Buffered | Unbuffered |
| Features | AMD EXPO technology, dual channel memory architecture |
Audio
| Type | HD Audio (8-channel) |
|---|---|
| Compliant Standards | High Definition Audio |
LAN
| Network Interfaces | 2.5 Gigabit Ethernet |
|---|
Expansion / Connectivity
| Expansion Slots | 1 x CPU 4 x DIMM 288-pin 1 x PCIe 4.0 x16 2 x PCIe 3.0 x1 2 x M.2 socket (2242/2260/2280 M.2 Key M slot) 2 x M.2 socket (2280 M.2 Key M slot) |
|---|---|
| Storage Interfaces | SATA-600 -connectors: 4 x 7pin Serial ATA - RAID 0 / RAID 1 / RAID 10 PCIe 4.0 -connectors: 2 x M.2 - RAID 0 / RAID 1 / RAID 10 PCIe 4.0 -connectors: 1 x M.2 |
| Interfaces | 1 x HDMI 2 x DisplayPort 2 x USB 3.2 Gen 1 4 x USB 2.0 1 x LAN (Gigabit Ethernet) 1 x PS/2 keyboard / mouse 1 x microphone - mini-jack 1 x audio line-in - mini-jack 1 x audio line-out - mini-jack |
| Internal Interfaces | 1 x USB-C 3.2 Gen 1 - header 2 x USB 3.2 Gen 1 - header 4 x USB 2.0 - header 1 x serial - header 1 x audio - header 1 x SPDIF out - header 1 x speaker - header 1 x SPI - header 1 x Thunderbolt - header |
| Power Connectors | 24-pin main power connector, 8-pin ATX12V connector, 4-pin ATX12V connector |
Features
| BIOS Type | AMI |
|---|---|
| BIOS Features | UEFI BIOS, ASUS EZ Flash 3, ASUS UEFI BIOS EZ Mode |
| Sleep / Wake Up | Wake on LAN (WOL), wake on PME |
| Hardware Features | Preboot eXecution Environment (PXE), ASUS EZ DIY, ASUS DIGI+ VRM, CrashFree BIOS 3, ASUS OptiMem II, ASUS 5X Protection III, LANGuard, overvoltage protection, ASUS SafeSlot Core, ASUS Stainless Steel Back I/O, ASUS Q-Design, Q-DIMM, Q-LED Core, Q-Slot, VRM heatsink design, BIOS FlashBack button, BIOS FlashBack LED, ASUS Aura Sync, Lighting Control, ASUS Control Center Express (ACC Express), 6 Layer PCB, ASUS Enhanced Memory Profile (AEMP), 8+2+1 Phase Power Design |
Miscellaneous
| Included Accessories | M.2 screw package, IO shield, ACC Express Activation Key Card |
|---|---|
| Cables Included | 2 x Serial ATA cable |
| Software Included | WinRAR, Norton 360 for Gamers (60 days trial), ASUS CPU-Z, PC Cleaner, ASUS TurboV EVO Utility, ASUS AI Suite III, ASUS Fan Xpert 2+, ASUS AURA Creator, Armoury Crate, Adobe Creative Cloud (free trial), WinRAR (40 days trial), ASUS Control Center Express |
| Width | 24.4 cm |
| Depth | 24.4 cm |
| Pricing Type | ASUS Corporate Stable Model (CSM) |
Product features
Robust memory support
The motherboard features four DIMM slots that support DDR5 SDRAM, allowing users to install memory up to 3800 MHz. This dual-channel memory architecture enhances overall system performance, especially during demanding tasks.Extensive connectivity options
Equipped with a variety of ports, including USB 3.2 Gen 1, USB-C, HDMI, and DisplayPort, the motherboard provides versatile connection possibilities for various peripherals, allowing seamless integration into different setups.Enhanced audio capabilities
With high definition audio output, this motherboard supports 8-channel audio for immersive sound experiences, making it suitable for both gaming and multimedia applications.Ease of use features
ASUS's Q-DIMM technology and BIOS features such as ASUS EZ Flash 3 simplify the installation process for memory and system management, enabling users to focus on building their ideal setup.Superior protection mechanisms
The motherboard incorporates ASUS 5X Protection III, LANGuard, and overvoltage protection features, ensuring a reliable and safe computing environment, even under heavy workloads.Key selling points
- Supports Ryzen 7000/8000/9000 Series processors
- Four DIMM slots for DDR5 SDRAM up to 3800 MHz
- Comprehensive port selection including USB 3.2 Gen 1 and USB-C
- High definition audio output with 8-channel support
- Advanced features for easy installation and management
References
MPN: 90MB1J10-M0EAYC
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