Dell PowerEdge R640
The Dell PowerEdge R640 server is a 1U, 14th gen (14G), Intel-based rack server, which can weigh up to 48Lbs when fully configured. The server's motherboard supports 2x Intel LGA3647 / Socket-P sockets that accommodate Intel's Xeon Scalable V1 / V2 Series processors with a maximium TDP of 205W, maximum speed per processor of 3.90Ghz, and a maximum of 56 Cores. The Dell PowerEdge R640 server supports 12x DIMMs per CPU for a total of 24x RAM slots and a maximum of 6.1TB of PC4 / DDR4 ECC Registered memory with a max speed of 3200 Mhz.
The Dell PowerEdge R640 chassis takes 2x hot-plug / hot-swap redundant power supplies / PSUs with total wattage of up to 1,600 Watts. Total storage maxes out at 1228.8TB without the optional flex-bay drives. Including optional flex-bay drives, max storage exceeds 1474.6TB. Depending on the chassis configuration, the Dell PowerEdge R640 server can support a maximum of 12x SFF / 2.5 inch SATA / SAS drives, a maximum of 12x SFF / 2.5 inch NVMe drives or a maximum of 4x LFF / 3.5 inch drives.
The Dell PowerEdge R640 server comes with a modular LOM / NDC slot that accommodates a wide range of network daughter card connections. Depending on the riser configuration, the Dell PowerEdge R640 server could take up to 3x PCIe 3.0 (Gen 3) NIC slots. Depending on the riser configuration, the Dell PowerEdge R640 server could accommodate up to 3x single-wide GPUs.
Key additional features include: support of Boss-S1 card with up to 2x M.2 SATA SSDs, Quick Sync 2 setup features, and DRAC 9 Dell remote access capabilities.
Select a Dell PowerEdge R640





NVMe:: NVMe support: this R640 can house up to 10 NVMe drives. Faster data access, low latency, high IOPS, and rapid sequential speeds for better performance.
Storage:: Storage: built to house up to 10 x 2.5" drives, the R640 provides extensive storage capacity for data-intensive tasks.
Compact:: Compact design: packed into a 1U chassis, this server delivers substantial performance while optimizing rack space utilization.
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FAQs
When building a server, it’s crucial to carefully consider your storage requirements. At TechMikeNY, we understand the importance of reliable storage, which is why our refurbished enterprise drives are tested to a level of thoroughness that our failure rate is better than most OEMs – with a sub 1% failure rate! We can help you select the appropriate drive capacity and type (like SSDs, NVMe or SAS drives) to accommodate your applications and data. Don’t hesitate to discuss your anticipated storage needs with us so we can tailor a configuration that provides optimal performance and scalability. If you have any questions, please don’t hesitate to contact us!
No, the R640 does not come with embedded NICs; you will need to select a suitable Network Daughter Card (NDC) for network connectivity.
Yes, the Dell PowerEdge R640 server is suitable for cloud computing workloads due to its high performance, memory capacity, and storage options, as well as support for virtualization and containerization technologies.
Yes, the Dell PowerEdge R640 family supports NVMe drives, which provide faster data access speeds for improved overall system performance. NVMe support is chassis specific.
Yes,! The Dell PowerEdge R640 can support up to 10 NVMe drives.
The Dell PowerEdge R640 supports GPU installations, making it suitable for applications that require additional graphical processing power.
When selecting a server processor, you’ll want to carefully evaluate factors like core count, clock speed, and Thermal Design Power (TDP). However, it’s more than just those specs! Matching processor capabilities to your anticipated workload – whether it’s virtualization, database processing, or high-performance computing – is absolutely essential. Don’t forget to consider the number of virtual machines (VMs) you plan to run, the type of applications they’ll be using, and your overall cooling strategy. Need help getting started? Explore our wide selection of refurbished, warrantied, and affordable Intel Processors through our Configure To Order Tool.
Documentation
- HP ProLiant DL380 G10 Data SheetUpdated: September 9, 2025Download
- Dell PowerEdge R640 Technical Guide
The Dell EMC PowerEdge R640 is a dual-socket, one rack unit server engineered for dense scale-out computing environments. Powered by second-generation Intel Xeon Scalable processors with up to twenty-eight cores per CPU and hyper-threading, this platform delivers substantial computational throughput for resource-intensive applications. Memory configurations are highly flexible, utilizing up to twenty-four DDR4 slots across two CPUs to support registered DIMMs, load-reduced DIMMs, and Intel Optane DC persistent memory, reaching maximum capacities of 7.68 terabytes at speeds up to 2933 megatransfers per second. The chassis design incorporates modular storage backplanes accommodating either four 3.5-inch or ten 2.5-inch SAS, SATA, and NVMe drives in the front panel, along with two additional rear bays, while also supporting up to ten CPU-direct attach PCIe solid-state drives for accelerated data access.
Expansion capabilities within the Dell EMC PowerEdge R640 are driven by a high-density interconnect architecture featuring three PCIe generation 3 slots alongside dedicated connectors for storage controllers and network daughter cards. This topology allows administrators to install multiple single-width graphics processing units or field-programmable gate accelerators without compromising core compute resources. Networking options range from embedded gigabit and ten-gigabit Ethernet ports to twenty-five-gigabit configurations, ensuring seamless fabric integration. To sustain peak performance under heavy loads, the system employs intelligent thermal management and supports hot-swappable platinum and titanium efficiency power supplies ranging from 495 watts to 1600 watts, which dynamically optimize energy consumption while maintaining strict redundancy protocols.
Administrators managing Dell EMC PowerEdge R640 deployments benefit from comprehensive enterprise-grade oversight and protection mechanisms. The integrated remote access controller nine paired with the Lifecycle Controller enables out-of-band provisioning, real-time power monitoring, and automated firmware updates through standard RESTful APIs and Ansible modules. Hardware security is reinforced by a trusted platform module version two, latching front bezels, and BIOS-level power button controls to prevent unauthorized physical or logical access. Ultimately, this infrastructure targets mid-to-large data centers seeking consolidated compute density, robust virtualization and high-performance computing workloads, software-defined storage implementations, and streamlined lifecycle automation to maximize return on investment while minimizing operational overhead.
Updated: October 1, 2026Download - Dell PowerEdge R640 Statement of Volatility
The Dell EMC PowerEdge R640 server provides a scalable infrastructure for enterprise workloads, characterized by its dual-processor architecture and extensive memory subsystem supporting up to twelve slots per CPU for high-performance operations. Configuration options for the PowerEdge R640 include RDIMM and LRDIMM modules with capacities reaching 32GB per DIMM, while NVDIMM-N technology offers up to 16GB per module to guarantee data integrity during unexpected power loss events. Storage flexibility is achieved through multiple backplane designs, accommodating two 2.5-inch drives in the rear slot, four 3.5-inch drives, eight 2.5-inch drives, and a ten-drive 2.5-inch expansion backplane, allowing administrators to tailor capacity for boot, application, or archive requirements within the Dell EMC PowerEdge R640 environment.
Data management capabilities are expanded by PERC H730, H830, and H330 storage controllers paired with HBA 330 options, which utilize NVSRAM for persistent configuration retention and SDRAM for I/O caching to enhance disk throughput. The server incorporates BOSS modules containing SPI flash for boot code and firmware, alongside the iDSDM card that supports internal mass storage via removable uSD cards with capacities of 16GB, 32GB, or 64GB. Remote administration is enabled through iDRAC 9 management within the Dell EMC PowerEdge R640, featuring dedicated DDR memory and non-volatile storage for lifecycle logs, virtual media, and system event records, facilitating out-of-band monitoring and configuration without host-side dependencies.
Security and compliance needs are addressed through robust protection mechanisms including a TPM 2.0 module for encryption key storage, BIOS passwords, and secure boot enforcement via iDRAC Secure Boot code. The PowerEdge R640 utilizes write-protected non-volatile components such as BIOS SPI flash, BMC eMMC, and controller firmware to safeguard critical system parameters against unauthorized modification, while distinct procedures allow for clearing configuration data via hardware jumpers or the Lifecycle Controller interface. These features ensure reliable system recoverability and strict access control, making the Dell EMC PowerEdge R640 suitable for mission-critical deployments requiring rigorous data protection and manageable infrastructure across diverse computing scenarios.
Updated: October 1, 2026Download