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Dell EMC PowerEdge R840 Server - System Overview


Dell R840 server front of system

When outfitted with four processors the Dell EMC PowerEdge R840 Server can easily tackle a number for high-performance applications including, data analytics, machine learning, and other data-intensive workloads. It also features Dell’s out of band management tool iDRAC and OpenManage for automation and management of several servers.


You can install two or four Intel Xeon Scalable processors from either the first or second generation. However, you need the CPUs with an “M” suffix if you want to achieve 6TB memory capacity as only those processors with an “M” will support that memory capacity. Gen 2 Intel Xeon Scalable processors support memory speeds of up to 2933MHz, compared to 2666MHz using Gen 1 Scalable processors, they also support more memory in general. There are a number of power options depending on your server configuration.


Each processor supports 12x memory module slots with two modules per channel. There is a total of 48 active memory module slots with a quad-processor configuration. Only DDR4 ECC Registered (RDIMM), Load-Reduced (LRDIMM), or Non-Volatile (NVDIMM) memory modules are supported on this system. Only a total of 384GB of NVDIMM modules are supported, the remaining memory slots can be outfitted with RDIMM memory modules.


There are several storage configurations available on the Dell R840 server including 8x 2.5-inch SAS or SATA, 24x 2.5-inch SAS or SATA with 12 drive bays that can be outfitted with NVMe drives, and a configuration with 24x NVMe drives in front. Two more 2.5-inch SAS or SATA HDDs or SSDs can be installed in a rear drives cage. The system features an S140 integrated software RAID controller but the system is also compatible with Dell’s other controllers including the PERC H330, H730P, H740P, and HBA330. Fro external storage, you can install a PERC H840 RAID controller. The system also supports Dell’s Boot optimized Storage Subsystem, AKA BOSS, for support of the OS.


Dell EMC PowerEdge R840 rear of system

Depending on your choice of risers the system will support either (4) x16 PCIe Gen3 slots or (2) x16 slots with (4) x8 PCIe slots. Options include a maximum of two GPUs from Nvidia or a maximum of FPGAs (Field Programable Gate Arrays). You can also install optional RAID controllers as mentioned in the storage section above or faster network cards. You still have other options with the Network Daughter Card, which occupies a dedicated slot on the back of the system and can be outfitted with several different network connection modules.


The system features a cyber-resistant architecture that helps to maintain system integrity with cryptographically-signed firmware and secure boot. This system also features the integrated Dell Remote Access Controller, or iDRAC, for at chassis and remote access. OpenManage is also supported on this system for datacenter and enterprise business applications, offing management of several generations of Dell servers plus third-party hardware.


Boasting up to four processors in a 2U chassis the Dell EMC PowerEdge R840 Server delivers powerful performance for in-database analytics and data-intensive applications. Scale on demand with up to 26 storage bays and up to 48 memory module slots.

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Dell EMC PowerEdge R840 Server - Specifications

Processor - 4 Socket
  • Two or four First Generation Intel Xeon Scalable processors, up to 28 cores per processor
  • Two or four 2nd Generation Intel Xeon Scalable processors, up to 28 cores per processor
    Types Supported:

  • Registered (RDIMM), Load Reduced (LRDIMM), Non-Volatile (NVDIMM)
  • Memory Speed:

  • Gen 1 Intel Xeon Scalable Processors - 48 DDR4 DIMM Slots total, 12 per processor, speeds of up to 2666MT/s
  • Gen 2 Intel Xeon Scalable Processors - 48 DDR4 DIMM Slots total, 12 per processor, speeds of up to 2933MT/s
  • Maximum Memory Capacity

    Gen 1 Intel Xeon Scalable Processors:

  • LRDIMM: 6TB - 48 x 128 GB LRDIMM @ 2666 MT/s
  • RDIMM: 1.5TB - 48 x 32 GB RDIMM @ 2666 MT/s
  • NVDIMM: 384GB - 24 x 16 GB NVDIMM
  • Gen 2 Intel Xeon Scalable Processors:

  • HPE Persistent Memory (Intel Optane Memory): 12TB 24 x 512 GB Persistent Memory Kit @2933 MT/s
  • LRDIMM: 6TB - 48 x 128 GB LRDIMM @2933 MT/s 2 DPC
  • RDIMM: 1.5TB - 48 x 64 GB RDIMM @ 2933 MT/s 1 DPC
  • NVDIMM: 384GB - 12 x 16 GB NVDIMM
  • *Supported maximum capacity is dependent on the processor with Gen 2 Intel Scalable processors supporting more and faster memory.
Storage controllers
    Internal controllers:

  • PERC H730P
  • PERC H740P
  • PERC H330 Software RAID (SWRAIND) S140
  • Boot Optimized Storage Subsystem:

  • HWRAID 2 x M.2 SSDs 240GB or 480GB
  • External PERC (RAID):

  • H480
  • 12 Gbps SAS HBAs (non-RAID):

  • External 12Gbps SAS (non-RAID), Internal-HBA330 (non-RAID)
Drive bays
    Front drive bays

  • Up to 8 x 2.5" SAS/SATA (HDD/SSD) max 61.44TB
  • Up to 24 x 2.5" SAS/SATA (HDD/SSD) with up to 12 NVMe PCIe SSDs max 184. 184.32TB
  • Up to 24 NVMe PCIe SSDs max 153TB
  • Rear Drive Bays

  • Up to 2 x 2.5" SAS/SATA (HDD/SSD) max 15.36TB
Power supplies

  • 1100W -48DVC
  • Platinum

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

  • 750W
  • Hot plug power supplies with full redundancy option 6 hot plugs fans with N + 1 redundancy

    Form factor

  • 2U Rack
  • Chassis

  • Height: 86.8mm (3.4")
  • Width: 434.0mm (17.08”)
  • Depth: 835.9mm (32.9”)
  • Weight: 36.6kg (80.7lbs.)
Embedded Management
  • iDRAC9
  • iDRAC Direct
  • iDRAC RESTful API with Redfish
  • Quick Sync 2 BLE/wireless
    Optional LCD Bezel or Security Bezel
OpenManage Software
  • OpenManage Enterprise
  • OpenManage Essentials
  • OpenManage Mobile
  • OpenManage Power Center
Integrations and connections

  • Microsoft System Center
  • VMware vCenter
  • BMC Truesight
  • Red Hat Ansible Modules
  • Connections:

  • Nagios Core and Nagios XI
  • Microfocus Operations Manager I
  • IBM Tivoli Netcool/OMNIbus
  • Dell EMC Repository Manager
  • Dell EMC Update Package
  • Dell EMC System Update
  • Dell EMC Server Update Utility
  • iDRAC Service Module
  • OpenManage Server Administrator
  • OpenManage Storage Services
  • TPM 1.2/2.0, TCM 2.0 optional
  • Cryptographically signed firmware
  • Secure Boot
  • System Lockdown (rquires OpenManage Enterprise)
  • Silicon Root of Trust
  • Secure Erase
I/O & Ports
    Network daughter card options:

  • 4 x 1GbE
  • 4 x 10GbE
  • 2 x 10GbE + 2 x 1GbE
  • 2 x 25GbE
  • Front ports:

  • 1 x Dedicated iDRAC Direct Micro USB
  • 1 x USB 2.0
  • 1 x VGA
  • Optional 1 x USB 3.0
  • Rear ports:

  • 1 x Dedicated iDRAC port
  • 1 x Serial
  • 2 x USB 3.0
  • 1 x VGA
  • Internal Port:

  • 1 x USB3.0
  • Video card:

  • VGA
  • PCIe

  • Up to 6 x Gen3 slots, (4 x16 slots or 2 x16 + 4 x8 slots)
Supported operating systems
  • Canonical Ubuntu Server LTS
  • Citrix Hypervisor
  • Microsoft Windows Server with Hyper-V
  • Red Hat Enterprise Linux
  • SUSE Linux Enterprise Server
  • VMware ESXi

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Get a quote for Dell EMC PowerEdge R840 Server

If you know what you want but can't find the exact configuration you're looking for, have one of our knowledgeable sales staff contact you. Give us a list of the components you would like to incorporate into the system, and the quantities, if more than one. We will get back to you immediately with an official quote.

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