Dell EMC PowerEdge R840 2U 4 socket Rack Server

    Dell EMC PowerEdge R840 2U 4 socket Rack Server

    The Dell EMC PowerEdge R840 is 4 socket, 2U rack server designed to run complex workloads using highly scalable memory, I/O, and network options.


    The Dell EMC PowerEdge R840 is 4 socket, 2U rack server designed to run complex workloads using highly scalable memory, I/O, and network options.

    The system features the Intel Xeon Scalable Processor family, up to 48 DIMMs, PCI Express 3.0 enabled expansion slots, and a choice of network interface technologies for rNDC.

    The PowerEdge R840 is a general purpose platform capable of handling demanding workloads and applications, such as data analytics, data warehouses, ecommerce, databases, CPU virtualization, and high-performance computing.


    The R840 Features:

    1,  2nd GenerationIntel Xeon Scalable Processor product family — with up to 28 cores and two threads per core

    2, Upto 24 channels with 6 channels per CPU and up to 48 DIMMs with 2 DIMMs per channel

    3,  Scale capacity and performance with up to 26 2.5 inch HDDs and SSDs

    4,  Accelerateapplicationswith up to 2 double-width GPUs or up to 2 full-height FPGAs

    5,  Speed data transfers with a fully integrated ultra-path interconnect across all four sockets


    Chassis views

    The PowerEdge R840 is a four socket, 2U rack system that is available in three different chassis configurations:

    1, Eight hard drive chassis

    2, Twenty four hard drives chassis

    3, Twentyfourhard drives plus 2 rear drives chassis


    Front view 24 x 2 .5-inch drive system

    Front view 24 x 2 .5-inch drive system of PowerEdge R840

    1, Left control panel

    2, Drives

     3, Right control panel

    4, Service Tag


    Front view 8 x 2 .5-inch drive system

    Front view 8 x 2 .5-inch drive system of PowerEdge R840

     1, Left control panel

     2, Drive slots

    3, Optical drive (Optional)

     4, USB3.0 port(Optional)

     5, Right control panel

     6, ServiceTag


    Rear view of the 24 x 2 .5-inch drive system

    Rear view of the 24 x 2 .5-inch drive system of PowerEdge R840

    1, Riser 1 - Full-height PCIe expansion card (Slot 1 and 2)  

     7, USB3.0 ports(2)   

     2, Half-height PCIe expansion card slots located on the systemboard(Slot 3 and 4)

     8, VGA port

     3, Riser2 -Full-heightPCIe expansion card slots (Slot 5 and 6)

     9,  Serialport

     4, Powersupply units (2)

     10, NIC ports (4)

     5, System identification button  

     11, Rear handle

    6,  iDRAC9 dedicatedport


    Rear view of the 24 x 2 .5-inch + 2 x 2 .5-inch (rear) drive system

    PowerEdge R840 Rear view of the 24 x 2 .5-inch + 2 x 2 .5-inch (rear) drive system

      1, Riser1- Full-height PCIe expansion card slots (Slot 1 and 2)

      7, USB3.0 ports(2)

     2, Half-height PCIe expansion card slots located on the systemboard(Slot 3 and 4)

     8, VGA port

     3, Rear drives (2)  

     9, Serialport

     4, Power supply units (2)

     10,NIC ports (4)

     5, System identification button  

     11,Rear handle

     6, iDRAC9 dedicatedport


    Internal Chassis View

    The chassis design of the PowerEdge R840 is optimized for easy access to components and for efficient cooling. The PowerEdge R840 supports up to 48 DIMMs, four processors, system board, rear drive cage, and many other components and features. 


    Internal chassis view without rear drive cage

    PowerEdge R840 Internal chassis view without rear drive cage


     2, SAS Expander board

     3, Coolingfans(6)

      4, System board

     5, Full-heightexpansioncard Riser 2

     6, Full-height expansion card Riser 1


    Internal chassis view with rear drive cage

    PowerEdge R840 Internal chassis view with rear drive cage

      1, Drivebackplane

     2, SAS Expander board

     3, Coolingfans(6)

      4, Systemboard

     5, Drive cage (rear)

     6, Full-height expansion card Riser1

    New Technologies

    The following are the new technologies featured on the PowerEdge R840:

    New technology

    Detailed description

    2nd Generation Intel Xeon Scalable Processor

    The processor product family has embedded PCIe lanes for improved I/O performance. For details, see the Processor section.

    Intel C620 series chipset

    The R840 system uses the Intel C620 chip. It is a 2 chip platform - CPU and PCH.

    2933 MT/s DDR4 memory

    The 2nd Generation Intel Xeon Scalable Processor product family that supports up to 2933 MT/s memory and forty eight DIMMs.

    The R840 system supports:

    ●   Two DIMMs per channel for single ‐ rank and/or dual ‐ rank DIMMs For details, see the Memory section.

    Intel Optane DC persistent memory (DCPMM)

    A new class of memory with same DDR4 electrical & physical constraints and close to DRAM latency

    ●   Up to 6 per CPU socket. Max 24 for 4S configuration.

    ●   256GB, 512GB per DIMM


    ●   1866, 2133, 2400, 2666 MT/s

    ●   Up to 12.28TB max, (15.36TB max with DCPMM and LDRIMM)

    iDRAC9 with Lifecycle Controller

    The new embedded systems management solution for the Dell EMC  systems features hardware and firmware inventory and alerting, data center level power monitoring, and faster performance.

    For details, see the Dell EMC OpenManage systems management section.

    2.5-inch PCIe SSD

    Supports up to twenty four direct-attached PCIe SSD NVMes

    PERC S140

    This new software RAID solution supports:

    ●   RAID 0, 1, 5, and Non-RAID

    ●   SATA HDD and SSD devices only

    ●   Up to twenty four 2.5 inch hot-plug SATA HDDs or SSDs

    ●   Software RAID is through the Intel C620 chipset

    ●   Software RAID solution is supported on Linux and Windows For details, see the Storage section.

    LCD bezel

    The PowerEdge R840 LCD control panel is embedded in an optional front bezel for easy access and management.

    Wireless Management

    The Quick Sync 2 BLE/Wi-Fi module offers support for access to        the iDRAC GUI, SupportAssist Collections, remote RACADM, and VNC remote console connectivity.

    Security Features

    The latest generation of PowerEdge servers has the features listed in the table to help ensure the security of your data center.

    Security Feature


    Cover latch

    A tooled latch is integrated in the top cover to secure it to the system.


    A standard bezel is an optional metal bezel mounted to the chassis front. A lock on the bezel           protects unauthorized access to hard drives. The Quick Sync NFC bezel enables the iDRAC             QuickSync management function for managing the server from the front using an NFC-capable       device and the free Dell EMC OpenManage Mobile App (currently Android only). Available only from the factory and not supported after point of sale.


    The Trusted Platform Module (TPM) is used to generate/store keys, protect/authenticate passwords, and create/store digital certificates.

    Power-off security

    BIOS has the ability to disable the power button function.

    Intrusion alert

    An internal switch is used to detect chassis intrusion

    Secure Boot mode

    BIOS has the ability to enter a secure boot mode through system setup. This mode includes the option to lock out the power switches on the control panel or set up a system password.

    System Features

    The R840 system is a 2U 4-socket rack server. It features the 2nd Generation Intel® Xeon® Processor scalable family processors (up to 28 cores and 2 threads per core) and 48 DIMMs (supports DDR4 RDIMM/LRDIMM/NVDIMM-N/DCPMM.)

    The R840 system has the following features:

    •   High-performance memory density with balanced I/O
    •   Balanced combination of processing density, high memory capacity, low power consumption, and value
    •   Easylife cycle manageability with innovative management tools
    •   Ideal for space constrained data centers

    Technical Specifications


    PowerEdge R840 technical specification

    Form factor

    2U rack


    2nd Generation Intel Xeon Scalable Processor family

    Processor sockets

    4 sockets

    Internal interconnect

    Up to 3 Intel Ultra Path Interconnect (Intel® UPI)


    Intel C620 series Chipset


    48 x DDR4 DIMM slots (only up to 12 NVDIMM or 24 DCPMM slots)

    ●   RDIMM 3 TB

    ●   LRDIMM 6 TB

    ●   NVDIMM 384 GB

    ●   DCPMM 12.28 TB (15.36 TB with LRDIMM)

    I/O slots

    Up to 6 x PCIe Gen 3 slots

    RAID controller

    Internal controllers: S140, HBA 330, PERC H330P, H350, PERC H730P, PERC H740P, H750, HBA350i

    External controllers (RAID): H840, 12 Gbps SAS HBA, HBA355e

    Internal boot

    Boot Optimized Storage Subsystem (BOSS):

    HWRAID 2 x M.2 SSDs 240GB, 480 GB


    Internal Dual SD Module

    Hard drives

    ●   8 x 2.5 inch SAS/SATA drives

    ●   24 x 2.5 inch SAS/SATA/NVMe drives

    ●   24 x 2.5 inch SAS/SATA/NVMe drives + 2 x 2.5 inch rear SAS/SATA

    Embedded NIC

    ●   4 x 1 GB

    ●   4 x 10 GB

    ●   2 x 10 GB + 2 x 1 GB

    ●   2 x 25 GB

    Power supply

    Two back accessible hot pluggable PSUs

    ●   750 W AC PSU

    ●   750 W Mix Mode HVDC PSU (for China only)

    ●   750 W Mix Mode DC PSU (for China only)

    ●   1100 W AC PSU

    ●   1100 W DC PSU

    ●   1100 W Mix Mode HVDC PSU (for Japan and China only)

    ●   1600 W AC PSU

    ●   1600 W HLAC PSU

    ●   2000 W AC PSU

    ●   2400 W AC PSU

    ●   2600 W HLAC PSU

    Supported operating systems

    ●   Canonical Ubuntu® LTS

    ●   Citrix Hypervisor

    ●   Microsoft Windows Server LTSC with Hyper-V

    ●   Red Hat Enterprise Linux

    ●   SUSE Linux Enterprise Server

    ●   VMware ESXi

    For more information on the specific versions and additions, visit Dell .com/ OSsupport .

    Systems management

    Dell EMC Systems management consoles and tools:

    ●   OpenManage Enterprise

    ●   OpenManage Mobile 2.0

    ●   OpenManage Power Manager iDRAC License options:

    ●   iDRAC9

    ●   iDRAC RESTful API with Redfish

    ●   iDRAC Direct

    ●   Quick Sync 2 BLE/wireless module  Dell EMC OpenManage Integrations:

    ●   BMC Truesight

    ●   Microsoft System Center

    ●   RedHat Ansible Modules

    ●   VMware vCenter

    Dell EMC OpenManage Connections:

    ●   IBM Tivoli Netcool/OMNIbus

    ●   IBM Tivoli Network Manager IP Edition

    ●   Micro Focus Operations Manager I

    ●   Nagios Core

    ●   Nagios XI

    Dimensions and weight

    ●   Weight: 36.6kg with all 2.5 inch drives

    ●   Height: 86 mm — 3.3 inches

    ●   Width: 482.0 mm — 18.97 inches

    ●   Depth with bezel:

    ○   Front bezel to rear PSU handle: 879.84 mm (34.64 inches)

    ○   Front bezel to rear wall: 939.84 mm (37 inches)

    ●   Depth without bezel:

    ○   Front bezel to rear PSU handle: 842 mm (33.14 inches)

    ○   Front bezel to rear wall: 902 mm (35.51 inches)

    Recommended support

    ProSupport Plus for critical systems or ProSupport for comprehensive hardware and software support for your PowerEdge solution. Consulting and deployment offerings are also available.

    Contact your Dell EMC representative for more information. Availability and terms of Dell EMC Services vary by region. 

    Related Products

    Send Message

    • Transceivers
    • Cables
    • About us
    • Contact