PRIME B850M-A-CSM
ASUS Prime series motherboards are expertly engineered to unleash the full potential of AMD Ryzen™9000 series processors. The PRIME B850M-A-CSM motherboard provides users and PC DIY builders with a range of performance optimizations via intuitive software and firmware features. It's designed to be Advanced AI PC-ready, offering the power and connectivity needed for demanding AI applications.
ASUS Corporate Stable Model
ASUS Corporate Stable Model (CSM) is a commercial program designed to provide stable and reliable motherboards. Offering up to 36-month product lifecycle support and 6-month end-of-life notice to allow sufficient lead times for your organization to get ready for product transitions. Each purchase of an ASUS CSM motherboard comes with ASUS Control Center Express - server-grade IT management software.
ASUS Control Center Express
ASUS Control Center Express is an integrated IT monitoring and management software designed to deploy faster, simplify IT operations and improve productivity with comprehensive control and user-friendly functions. ASUS Control Center Express is compatible with over 100 ASUS motherboards to provide a high-quality, TCO-optimized solution for your business needs.
Optimize IT endpoint management
Designed to assist IT staff in monitoring and controlling devices within their corporate networks, and facilitate inventory checking in multiple locations remotely.
Automate IT maintenance
Allows IT staff to schedule automatic updates of the latest BIOS, software and utilities to specific or all devices at off-peak times, enhancing system stability and IT operational flexibility.
Securely manage all of endpoints
Securely manage endpoint configuration, portable storage access and PC software applications by enabling them to create grouping rules on individual devices.
Performance | AI Solutions
ASUS AI Solutions include AI Cache Boost to supercharge large language model (LLM) workflows, ASUS AI Advisor as your technical expert with expertise in PC performance.
AI Cache Boost
Supercharge your large language model (LLM) workflows with AI Cache Boost. Exclusive to ASUS AMD 800 and 600 series motherboards that use Ryzen™ 9000 Series CPUs, this BIOS setting optimizes CPU cache and memory pathways to deliver up to 29% faster local LLM performance with high-speed memory tuning.
AI Advisor
ASUS AI Advisor allows users to explore the functionality and advanced features of ASUS motherboards in a simple and straightforward way.
Performance | Digital Power Design
PRIME B850M-A-CSM features an 8+2+1 phase power design with discrete MOSFETs, ensuring efficient and stable power delivery for AMD processors plus steady performance for day-to-day use.
Six-layer PCB design
Enhanced stability and overclocking.
The multi-layered printed circuit board design quickly dissipates heat around the voltage regulators to improve overall system stability and provide the CPU with more overclocking headroom.
Digi+ VRM control
Real-time voltage control.
The Digi+ voltage-regulator module (VRM) delivers real-time control over voltage droop, automatically switching frequency and power-efficiency settings.
- Ryzen 7 processors supported for enhanced, dependable system performance with maximum usability
- DDR5 SDRAM slot for convenient installation of memory
- RAID supported levels provide data reliability and fault tolerance
- HDMI interface enables the user to experience a fantastic sound/video quality at the expense of a single cable
- DisplayPort host interface allows audio and video signals to be shared in a single cable transmission to ensure maximum efficiency
- Micro ATX form factor for your accessibility convenience and simplicity of usage for Gaming Desktop Motherboard
| Brand | |
|---|---|
| Brand | ASUS Computer International |
| CPU / Processor | |
|---|---|
| Processor Supported | Ryzen 9 |
| Total Processor Supported | 1 |
| Processor Socket | Socket AM5 |
| GPU / Graphics | |
|---|---|
| Onboard Video | CPU Dependent Video |
| Memory / RAM | |
|---|---|
| Memory Technology | DDR5 SDRAM |
| Memory Speed Supported | 8000 MHz |
| Memory Form Factor | UDIMM |
| Number of Memory Slots | 4 |
| Error Checking | ECC |
| Maximum Memory Supported | 256 GB |
| Storage | |
|---|---|
| RAID Supported | Yes |
| RAID Levels | 10 |
| USB Ports | |
|---|---|
| Total Number of Onboard USB P | 7 |
| Number of Onboard USB 2.0 Por | 4 |
| Total Number of USB Ports | 8 |
| HDMI Ports | |
|---|---|
| HDMI | Yes |
| DisplayPort | |
|---|---|
| DisplayPort | Yes |
| Ethernet Port | |
|---|---|
| Number of Network (RJ-45) Por | 1 |
| Gigabit Ethernet | Yes |
| 2.5Gigabit Ethernet | Yes |
| Audio Ports | |
|---|---|
| Onboard S/PDIF Header | Yes |
| Audio | |
|---|---|
| Audio Channels | 7.1 |
| Size / Dimensions | |
|---|---|
| Form Factor | Micro ATX |
| General Features | |
|---|---|
| Chipset Manufacturer | AMD |
| Chipset Model | B850 |
| AI-powered | Yes |
| Controller Type | Serial ATA/600 |
| Manufacturer | ASUS Computer International |
| Brand Compatibility | AMD |
| Expansion Slots | |
|---|---|
| Number of PCI Express x16 Slo | 3 |
| Total Number of PCI Express S | 3 |
| Total Number of Expansion Slots | 3 |
| PCI Express Standard | PCI Express 4.0 |
| Misc Ports | |
|---|---|
| Number of M.2 Interfaces | 3 |
| Number of SATA Interfaces | 4 |

