changfan CF-640G4 – 4U4GPU AMD High-Performance Server
The changfan CF-640G4 series is a standard 4U rackmount high-performance server powered by a single AMD EPYC 8004/7003/7002 processor, supporting up to 4 dual-width GPUs. With high cost-effectiveness, exceptional performance, outstanding expandability, and high reliability, it meets diverse customer application requirements. It provides an ideal hardware platform for AI, deep learning, modeling and simulation, post-production, and graphics rendering, making it an excellent choice for university labs and research institutions.
Key Features:
● Independent R&D, High Cost-Effectiveness: Independently designed and developed by Longfan Technology, with a deeply optimized system architecture offering competitive pricing
● 4U Rackmount High-Performance Server: Standard 4U rackmount design, dimensions 438mm×177mm×660mm, suitable for standard data centers and server rooms
● Single AMD EPYC 8004/7003/7002 Series Processors: Flexible compatibility across multiple AMD EPYC platforms to meet varying computing and budget requirements
● Up to 2TB DDR4 RECC 3200 Memory: Supports up to 8 DDR4 RECC 3200 memory slots (7002/7003 platform), fully meeting memory-intensive application needs
● Flexible Storage Configuration: Supports 8/12/24 SATA/SAS drive bays with optional NVMe support, balancing storage capacity and read/write performance
● Up to 4 Dual-Width GPUs: Supports up to 4 dual-width GPUs for compute-intensive scenarios including AI training, inference, and graphics rendering
● Rear GPU Fan Module: Dedicated GPU cooling design ensures stable operation under high loads, protecting long-duration training tasks
● 1+1 Redundant Power Supply: 2000W/2700W 80Plus Platinum efficient redundant power supply for 24/7 mission-critical operation
● Intelligent Remote Management: Onboard BMC management module (AST2500/AST2600) supporting IPMI 2.0, SOL, KVM Over IP, and virtual media for remote monitoring and maintenance
Applications:
● AI & Deep Learning: Model training/inference, neural network deployment
● High-Performance Computing (HPC): Scientific computing, engineering simulation, complex numerical analysis
● Cloud Computing & VDI Virtualization: GPU virtualization, cloud gaming, remote workstations
● Graphics Rendering & Post-Production: 3D rendering, visual effects, virtual production
● University Research & Laboratories: Academic research, algorithm validation, teaching labs
OEM/ODM Customization Services:
Longfan Technology offers comprehensive customization from motherboard design to system integration:
● Flexible AMD EPYC processor platform selection (7002/7003/8004 series)
● GPU compatibility optimization (NVIDIA, AMD, etc.)
● Custom storage backplanes supporting SATA/SAS/NVMe hybrid configurations
● Chassis appearance, color, logo, and panel layout customization
● Thermal solution optimization (auxiliary fans or liquid cooling interfaces)
● Pre-installed OS, ROCm, deep learning frameworks, and drivers for out-of-box experience
Product Specifications:
Item | CF-640G4-A (EPYC 7002/7003) | CF-640G4-B (EPYC 8004) |
|---|---|---|
Processor | Single AMD EPYC 7003/7002, TDP 280W | Single AMD EPYC 8004, TDP 225W |
Socket Type | SP3 | SP6 |
Memory | 8×DDR4 RECC 3200, up to 2TB | 8×DDR5 RECC 4800, up to 768GB |
Storage Bays | 8/12/24×3.5"/2.5" SATA/SAS hot-swap (12Gb/s); Optional NVMe; Onboard 2×SFF-8654 for 4 NVMe | Same as left |
PCIe Expansion | 5×PCIe Gen.4 x16, 2×M.2 PCIe 3.0 x4; 2×SFF-8654 for 4 NVMe | 4×PCIe Gen.5 x16, 2×M.2 PCIe 5.0 x4; 2×MCIO x4 / 2×MCIO x8 |
I/O Ports | 2×USB 3.0, 1×Header, 2×USB 2.0, 1×VGA, 1×COM | 2×USB 3.2, 1×VGA, 1×COM |
Network | 2×RJ45 Gigabit, 1×RJ45 IPMI | Same as left |
Remote Mgmt | AST2500 BMC, IPMI 2.0, SOL, KVM Over IP, virtual media | AST2600 BMC, IPMI 2.0, SOL, KVM Over IP, virtual media |
Cooling | 4×92mm hot-swap fans/PWM + 2×80mm rear hot-swap fans/PWM (CPU); Optional 2×80mm rear fans (GPU) | Same as left |
Power Supply | 2000W / 2700W (1+1) 80Plus Platinum redundant | Same as left |
Dimensions | 438mm × 177mm × 660mm | Same as left |
Environment | 10°C–35°C operating, 8%–90% humidity; -40°C–70°C storage, 5%–95% humidity | Same as left |
OS Support | Windows Server, RHEL, CentOS, Ubuntu, SUSE Linux | Same as left |
