The Dell PowerEdge R840 Rack Server is a powerful 2U, four-socket server platform designed to deliver scalable performance for demanding enterprise workloads. With extensive processing power, large memory capacity, flexible storage configurations, and advanced management capabilities, the PowerEdge R840 provides a high-density infrastructure platform for data-intensive environments.

Processor

The Dell PowerEdge R840 supports:

• Up to four 2nd Generation Intel® Xeon® Scalable processors.
• Up to 28 cores per processor.

This configuration provides a maximum of 112 processor cores within a compact 2U rack platform.

Memory

The PowerEdge R840 provides extensive DDR4 memory scalability.

Memory Slots

• 48 DDR4 DIMM slots.

Memory Types

The server supports:

• RDIMM
• LRDIMM
• NVDIMM
• Intel® Optane™ DC Persistent Memory

Memory Speed

• Up to 2933 MT/s.

Maximum Memory Capacity

The PowerEdge R840 supports:

• Up to 6 TB of standard DDR4 memory.
• Up to 12 NVDIMMs with a maximum capacity of 384 GB.
• Up to 24 Intel® Optane™ DC Persistent Memory modules.
• Up to 12.28 TB of persistent memory.
• Up to 15.36 TB when combining persistent memory with LRDIMM.

The system supports registered ECC DDR4 DIMMs only.

Storage Controllers

The Dell PowerEdge R840 supports several internal and external storage controller configurations.

Internal Controllers

Available internal controllers include:

• PERC H330
• PERC H730P
• PERC H740P
• HBA330

External Controllers

External controller options include:

• PERC H840
• 12 Gbps SAS HBA

Software RAID

• S140

Internal Boot

Internal boot options include:

• Boot Optimized Storage Subsystem (BOSS)
• Hardware RAID with 2 x M.2 SSDs
• 240 GB or 480 GB M.2 SSD options
• Internal Dual SD Module

Drive Bays and Storage

The PowerEdge R840 provides several storage configurations for SAS, SATA, and NVMe drives.

Front Drive Bays

Available configurations include:

• Up to 8 x 2.5-inch SAS/SATA HDD or SSD drives with a maximum capacity of 61.44 TB.
• Up to 24 x 2.5-inch SAS/SATA HDD or SSD drives combined with up to 12 NVMe PCIe SSDs, providing a maximum capacity of 184.32 TB.
• Up to 24 x NVMe PCIe SSDs with a maximum capacity of 153 TB.

Rear Drive Bays

The rear storage configuration supports:

• Up to 2 x 2.5-inch SAS/SATA HDD or SSD drives with a maximum capacity of 15.36 TB.

Power Supplies

The Dell PowerEdge R840 supports several hot-plug power supply configurations.

Available options include:

Gold

• 1100 W -48 VDC

Platinum

• 750 W
• 750 W 240 VDC
• 1100 W
• 1100 W 240 VDC
• 1600 W
• 2000 W
• 2400 W

Titanium

• 750 W

Hot-plug power supplies are available with a full redundancy option.

Cooling and Fans

The PowerEdge R840 supports:

• 6 hot-plug fans.
• N+1 fan redundancy.

Embedded Management

The Dell PowerEdge R840 includes several embedded management technologies:

• iDRAC9
• iDRAC Direct
• Quick Sync 2 BLE/Wireless

OpenManage Software

Supported Dell OpenManage solutions include:

• OpenManage Enterprise
• OpenManage Mobile
• OpenManage Power Center

Management Tools

Available management tools include:

• Dell EMC Repository Manager
• Dell EMC Update Package
• Dell EMC System Update
• Dell EMC Server Update Utility
• iDRAC Service Module
• iDRAC RESTful API with Redfish
• OpenManage Server Administrator
• OpenManage Storage Services

Integrations and Connections

The PowerEdge R840 supports integration with several enterprise management platforms.

Integrations

• Microsoft® System Center
• VMware® vCenter™
• BMC Truesight
• Red Hat® Ansible® Modules

Connections

• Nagios Core
• Nagios XI
• Micro Focus Operations Manager
• IBM Tivoli Netcool/OMNIbus

Security

The Dell PowerEdge R840 provides multiple built-in security capabilities, including:

• Optional TPM 1.2/2.0
• Cryptographically signed firmware
• Silicon Root of Trust
• Secure Boot
• System Lockdown
• System Erase

These capabilities provide hardware and firmware-level security throughout the server lifecycle.

Network Connectivity

The PowerEdge R840 supports several Network Daughter Card configurations, including:

• 4 x 1 GbE
• 4 x 10 GbE
• 2 x 10 GbE + 2 x 1 GbE
• 2 x 25 GbE

Dell also supports multiple integrated NIC configurations depending on the selected network daughter card.

Ports

Front Ports

The front panel includes:

• 1 x Video port
• 2 x USB 2.0 ports
• 1 x dedicated iDRAC Direct Micro-USB management port
• Optional 1 x USB 3.0 port with the 8-drive configuration

Rear Ports

The rear panel includes:

• 1 x Video port
• 1 x Serial port
• 2 x USB 3.0 ports
• 1 x dedicated iDRAC9 port
• Network interface ports

Internal Ports

The server includes:

• 1 x USB 3.0 port

The rear configuration also includes four NIC ports depending on the selected network daughter card.

PCIe Expansion

The Dell PowerEdge R840 supports:

• Up to 6 PCIe Gen3 expansion slots.
• Up to 4 x16 slots.

Different riser configurations provide full-height, low-profile, half-length, and full-length expansion options.

Accelerator Options

The PowerEdge R840 supports accelerator configurations including:

• Up to 2 double-width GPUs.
• Up to 2 full-height FPGAs.

Supported GPU options include:

• NVIDIA Tesla P100
• NVIDIA Tesla P40
• NVIDIA Tesla V100

Bezel

Available bezel options include:

• Optional LCD bezel
• Security bezel

Form Factor

The Dell PowerEdge R840 is designed as a:

• 2U Rack Server

Dimensions and Weight

The PowerEdge R840 provides high compute and memory density within its 2U chassis.

Its dimensions include:

• Height: 86.8 mm (3.4 inches)
• Width: 434 mm (17.08 inches)
• Depth: 835.9 mm (32.9 inches)
• Weight: Up to 36.6 kg (80.7 lbs.)

Supported Operating Systems and Hypervisors

The Dell PowerEdge R840 supports several enterprise operating systems and virtualization platforms, including:

• Canonical® Ubuntu® LTS
• Citrix® Hypervisor
• Microsoft® Windows Server® with Hyper-V
• Red Hat® Enterprise Linux
• SUSE® Linux Enterprise Server
• VMware® ESXi