Dell PowerEdge R940

The Dell EMC PowerEdge R940 is a scalable four-socket rack server engineered to deliver extreme performance for mission-critical applications and real-time decision making. Housed in a compact 3U chassis, this system accommodates up to four second-generation Intel Xeon Scalable processors, each offering as many as 28 cores, to handle the most demanding enterprise workloads. Memory capacity is exceptionally flexible, utilizing 48 DDR4 DIMM slots to support registered or load-reduced dual inline memory modules at speeds up to 2933MT/s. Buyers requiring maximum throughput can configure up to 15.36TB of RAM by mixing standard RDIMMs with Intel Optane DC persistent memory modules, while the system also supports up to 12 NVDIMMs for critical data retention.

Storage flexibility is a central feature of the PowerEdge R940, which provides 24 front-accessible drive bays capable of housing up to 12 NVMe PCIe solid-state drives or traditional SAS and SATA disks for a maximum capacity of 184.32TB. Internal boot volumes are handled by a dedicated BOSS subsystem with dual M.2 SSDs or a dual SD module, while external storage is managed through PERC and HBA controllers. To support rapid data expansion and high-speed networking, the server includes up to 15 PCIe Generation 3 slots, configured as a mix of x8 and x16 connectors. Network daughter cards are available in various configurations ranging from 1GbE to 25GbE ports, ensuring seamless integration into modern data center fabrics.

Dell EMC has embedded comprehensive management and security protocols directly into the PowerEdge R940 infrastructure. Operational efficiency is streamlined through the OpenManage portfolio, featuring automated discovery, customized reporting via the OpenManage Enterprise console, and wireless QuickSync capabilities for mobile oversight. Remote administration relies on an integrated iDRAC9 module that supports IPMI 2.0 compliance and RESTful Redfish interfaces, enabling agent-free monitoring and rapid troubleshooting. Security is fortified through a cyber-resilient architecture that incorporates TPM 1.2 or 2.0, cryptographically signed firmware, Secure Boot, and a silicon root of trust throughout the hardware lifecycle. Additional protections include system lockdown modes for malware prevention and secure erase utilities for compliant decommissioning. Ultimately, the Dell EMC PowerEdge R940 serves as a robust foundation for virtualized environments, software-defined storage deployments, and high-availability enterprise applications that demand uncompromising reliability and automated oversight.

The Dell PowerEdge R940 is a high-density enterprise server engineered for demanding multi-socket workloads, offering two primary chassis configurations to match varying performance and storage requirements. IT buyers can select an eight-drive dual-processor variant equipped with twenty-four memory slots or scale to a twenty-four-drive quad-processor architecture enabled by the Processor Expansion Module, which provides forty-eight DIMM slots across four sockets. Both models support up to six terabytes of system memory using DDR4 RDIMMs, LRDIMMs, and Persistent Memory modules, alongside hot-swappable drive bays and flexible AC or DC power supply configurations. The enterprise rackmount form factor prioritizes airflow and serviceability, featuring clearly marked hot-swap and cold-swap mechanical touchpoints, removable air shrouds, and comprehensive cable routing diagrams for NVMe and legacy backplane setups.

Memory architecture in the Dell PowerEdge R940 demands strict population rules to guarantee stability and peak throughput, with channels requiring symmetric configuration per processor and capacity ratios between DRAM and Persistent Memory carefully balanced across supported modes like Optimizer, Mirror, Spare, or Dell Fault Resilient. The server accommodates extensive expansion through PCIe risers, network daughter cards, storage controllers, IDSDM modules, vFlash adapters, and M.2 SSDs, while maintaining thermal efficiency through mandatory drive blank filling and precision fan cage engineering. Centralized system management relies heavily on the integrated iDRAC controller, which handles remote deployment, firmware updates, and hardware monitoring via OpenManage utilities or the Lifecycle Controller. Network connectivity defaults to DHCP but supports static assignments, with physical indicators for rapid troubleshooting of NIC activity, power supply status, and RAID array health.

Security and administrative oversight are reinforced through a trusted platform module for cryptographic key binding, system intrusion detection switches, and configurable BIOS jumpers that manage password enforcement and CMOS retention. Dell provides embedded diagnostics accessible through Boot Manager or the Lifecycle Controller to validate minimum POST requirements, isolate component failures, and guide technicians through safe servicing procedures like anti-static protocols and thermal paste application. Designed primarily for IT administrators and certified data center professionals, the PowerEdge R940 addresses enterprise needs for predictable scaling, automated hardware monitoring via SupportAssist, and streamlined lifecycle management. The platform ultimately delivers a robust foundation for virtualization clusters, high-performance computing environments, and mission-critical database deployments where uptime, memory resilience, and simplified remote maintenance are paramount.

Dell Integrated Remote Access Controller 9 (iDRAC 9) serves as an out-of-band server management platform that allows IT administrators to remotely deploy, monitor, and troubleshoot infrastructure without relying on host operating systems or installed agents. This controller continuously tracks performance metrics across processor core counts, memory capacity allocations, and PCIe expansion slot utilization while mapping storage options and chassis form factors for rack, tower, and blade deployments. By aggregating these hardware telemetry streams into a composite CUPS index, the platform helps operations teams detect compute bottlenecks or thermal anomalies before they trigger service interruptions.

Security and access control define the operational scope of iDRAC 9, with feature progression across Basic, Express, Enterprise, and Datacenter licensing tiers. The architecture enforces strict authentication through Active Directory, LDAP, smart card validation, multi-factor codes, and role-based privilege levels, alongside FIPS 140-2 compliance and mandatory TLS encryption for all management traffic. Network teams can harden deployments using IP blocking, configurable password strength policies, and dedicated management subnets, while programmatic automation remains accessible through RACADM CLI, Redfish API, WSMan, SSH, and IPMI protocols. Zero-touch provisioning further accelerates bare-metal scaling by automatically delivering Server Configuration Profiles via DHCP options over NFS or HTTP shares.

Beyond identity and network hardening, Dell iDRAC 9 provides comprehensive storage subsystem control, enabling buyers to configure virtual disks across PERC controllers with RAID levels spanning zero through sixty, adjust cache policies, monitor drive wear endurance, and execute cryptographic erasure on SED drives. The management suite includes virtual media mounting, embedded vConsole KVM access, telemetry streaming, and automated firmware lifecycle procedures that support staged updates, rollback mechanisms, and SD-card recovery during catastrophic failures. Ultimately, this solution targets data center operations groups seeking to minimize downtime, enforce regulatory compliance, automate infrastructure scaling, and optimize energy efficiency through power capping and dynamic thermal profile adjustments across large-scale server fleets.

The Dell EMC PowerEdge R940 is a high-performance 3U rack server designed by Dell EMC to deliver exceptional scalability and processing power for demanding enterprise workloads. Built on the second-generation Intel Xeon Scalable processor family, this system supports up to four processors, each capable of delivering up to twenty-eight cores with Hyper-Threading technology, providing robust multi-threading capabilities for complex computations. Memory flexibility is a cornerstone of the R940 architecture, offering forty-eight DDR4 slots that support speeds up to 2933 MT/s and configuration options including RDIMMs, LRDIMMs, and Intel Optane Persistent Memory to achieve total capacities of up to 15.36 terabytes. This vast memory footprint ensures the server can handle massive in-memory databases and analytics applications without bottlenecking performance.

Addressing the need for high-throughput storage and extensive connectivity, the Dell EMC PowerEdge R940 accommodates up to twenty-four hot-plug drives on an active backplane, with support for PCIe NVMe solid-state drives and SAS or SATA options. Internal storage can scale to 184.32 terabytes, while RAID capabilities are managed through PERC controllers, BOSS modules, or the IDSDM with vFlash card for boot optimization. Expansion flexibility is maximized via up to thirteen PCIe Gen 3 slots in a four-socket configuration, allowing administrators to integrate diverse I/O cards for networking, graphics, or specialized accelerators. These resources make the PowerEdge R940 an ideal candidate for data warehouses, high-performance computing environments, and ecommerce platforms where low latency and massive concurrent processing are critical.

Dell EMC has engineered the R940 with enterprise-grade security and management features to simplify deployment and maintenance across large data centers. The system integrates iDRAC9 Enterprise with Lifecycle Controller for out-of-band hardware monitoring and firmware automation, complemented by Quick Sync 2.0 for wireless management access. Security is reinforced with a Trusted Platform Module, cover latch, and power-off BIOS controls to protect sensitive infrastructure. Buyers requiring mission-critical reliability will appreciate the redundant cooling fans, hot-plug power supplies with 1+1 redundancy, and optional ProSupport services that offer proactive monitoring and rapid response. The PowerEdge R940 effectively meets the needs of organizations seeking a monolithic rack server that balances extreme compute density, expansive storage options, and sophisticated lifecycle management tools for business-critical applications.

The Dell PowerEdge R940 is a high-density four-socket enterprise server designed for demanding data center workloads, featuring comprehensive firmware control through its integrated BIOS and UEFI reference architecture. Built around support for up to four Intel processors with configurable core counts and adjustable turbo boost limits, the platform delivers scalable computational power optimized for virtualization, dense database operations, and high-performance computing tasks. Memory configurations accommodate massive capacity tiers per processor socket, supporting DDR4 RDIMMs, LRDIMMs, and Intel Optane Persistent Memory modules while offering advanced operational modes like Dell Fault Resilient Mode and adaptive double DRAM device correction. Storage flexibility is equally extensive, with embedded SATA controllers configurable for AHCI or RAID, native NVMe drive support, internal BOSS PCIe M.2 cards, and a dual SD card module serving as a reliable redundant OS location.

Managing the Dell PowerEdge R940 requires precise hardware allocation across its expansion infrastructure. The chassis accommodates up to thirteen configurable PCIe slots depending on processor count, with manual bifurcation options allowing lanes to be partitioned into x4, x8, or x16 configurations for specialized accelerators and networking cards. Dell Active Power Controller profiles govern dynamic power distribution across cores and memory controllers, enabling administrators to balance performance-per-watt targets against raw throughput requirements. The firmware suite integrates intelligent cache prefetching, Sub NUMA clustering, and demand-based processor power management to maximize efficiency while maintaining low latency for clustered workloads. Network boot capabilities are fully supported through UEFI PXE, HTTP, and iSCSI protocols, streamlining zero-touch OS deployment across fleet environments without physical media.

Security and lifecycle management on the Dell PowerEdge R940 are tightly controlled through layered firmware utilities and the Integrated Dell Remote Access Controller interface. The system enforces boot integrity via UEFI Secure Boot with customizable policy objects, hardware-backed Trusted Platform Module activation, and optional Intel Trusted Execution Technology for measured startup routines. Administrators can lock pre-boot access with password jumpers and setup credentials while utilizing in-band manageability gates to restrict operating system interference with management engines. Pre-operating system control is centralized through the Dell Lifecycle Controller and System Setup menus, which automate hardware diagnostics, firmware updates, redundant OS mirroring, and remote deployment workflows. Ultimately, the server targets enterprise IT buyers requiring uncompromising availability, granular performance tuning, and robust out-of-band oversight for mission-critical infrastructure deployments.