Dell PE R840 Doc TechSpecs

The Dell EMC PowerEdge R840 is a high-performance rack-mount server manufactured by Dell EMC, designed for demanding enterprise workloads requiring significant compute density and storage flexibility. Measuring 482 mm in width, 86.8 mm in height, and approximately 902 mm with the chassis rear wall handle, this system accommodates up to four Intel Xeon Scalable processors within a robust form factor. Memory scalability is extensive, featuring 48 DIMM sockets that support LRDIMMs, RDIMMs, NVDIMM-N for persistent memory needs, and PMem modules. A quad-processor configuration can reach maximum capacities of 12.288 TB using 256 GB LRDIMMs or up to 12 TB with 512 GB PMem modules, ensuring the Dell EMC PowerEdge R840 meets rigorous virtualization and database application requirements.

Storage and expansion capabilities allow for versatile data center integration through drive configurations supporting up to twenty-four 2.5-inch front-accessible SAS, SATA, or NVMe drives, or a hybrid layout with twenty-four front and two rear bays. The Dell EMC PowerEdge R840 offers internal storage control via PERC controllers like the H740P and H750, or HBAs, alongside external options such as the S140. Expansion is facilitated by up to six PCIe Gen3 slots distributed across system board risers, accommodating full-height and low-profile cards for specialized accelerators or networking. Power delivery ensures reliability with redundant support for AC and DC units ranging from 750 W to 2600 W in Platinum and Titanium efficiency classes, including high-voltage direct current options for specific regional data centers.

Connectivity and management features streamline deployment and monitoring for IT administrators. The system includes a Network Daughter Card providing up to four RJ-45 or SFP+ ports supporting link speeds from 1 Gbps to 25 Gbps, along with USB 2.0 and 3.0 ports on the front and rear panels. System administration is aided by an integrated Matrox graphics controller accessible via VGA connectors on both chassis sides and a serial port for console redirection. Secure boot and device management are handled by an optional IDSDM or vFlash module slot that supports microSD cards with write-protection dip switches, while operating system compatibility spans Canonical Ubuntu LTS, Microsoft Windows Server with Hyper-V, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, Citrix Hypervisor, and VMware ESXi, addressing diverse infrastructure strategies.

Environmental resilience defines the operational boundaries for the Dell EMC PowerEdge R840, supporting standard continuous operation between 10°C and 35°C, with extended temperature ranges down to 5°C or up to 40°C under specific humidity and altitude derating rules. The server maintains functionality at altitudes up to 3048 meters and adheres to strict particulate and gaseous contamination specifications, requiring ISO Class 8 air filtration and limits on corrosive contaminants to protect sensitive components. These rigorous environmental controls ensure the Dell EMC PowerEdge R840 delivers sustained reliability in data center facilities meeting precise air quality and thermal standards, making it suitable for mission-critical deployments where uptime and hardware protection are paramount.