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Dell PowerEdge R420 Rack Server - System Overview


The 12th generation Dell R420 rack server is ideal as a base for a data center deployment or for use in space-constrained server enclosures. It may only occupy a 1u space but the R420 is densely packed and well-engineered. It supports up to two Xeon processors, up to 384GB of memory, and up to 16TB of storage. With scalable I/O features, this rack server is more than a match for memory-intensive and compute-intensive applications and databases. It's also preferred for email, workgroup collaboration, web hosting, ecommerce file and print, and high-performance computing.


Up to two Intel Xeon E5-2400 or E5-2400 v2 processors can be installed on this server, which features the C602 chipset.


There are 12 memory slots total, with each processor supporting six memory modules. Administrators can install up to 384GB of DDR3 memory supporting transfer speeds of up to 1600MT/s. A single processor deployment will support up to 192GB of memory.


Administrators have options for storage, either four 3.5-inch drives or eight 2.5-inch hot swap SFF drives. SATA, SAS, and Hybrid HDDs and SSDs cabled or hot swap drives are supported. Depending on your choice of storage, HP states a maximum of 16TB is supported. Self-encrypting drives are also available. An optional Dual SD module can be installed for redundant, failsafe hypervisor support. Both hardware and software RAID options are available depending on your choice of RAID controller.


The R420 provides two PCIe 3.0 slots with dual processors, compared to just one PCIe slot on the earlier generation PowerEdge R410. In a single processor configuration, you still have two PCIe slots available with one gen 3.0 and one gen 2.0 PCIe slot. The second processor changes the 2.0 lane to a PCIe gen3 lane. An embedded Broadcom 5720 LOM and a dedicated slot for the PERC controller ensure you don't use any PCI slots for network connectivity or storage controllers and can add additional NICs in the PCIe slots to increase I/O or install additional RAID controllers.


Basic management is standard but you can update to iDRAC7 with Lifecycle Controller with the purchase of an Express or Enterprise license. OpenManage Essentials is also supported on the system but to activate additional features, including the OpenManage Power Center, you'll need iDRAC7 Enterprise with Lifecycle Controller.


The Dell R420 is an excellent choice or for a variety of applications offering high density with scalable architecture in a compact 1u chassis. Applications include; departmental or remote sites of large businesses and public organizations, web hosting, e-commerce, departmental email, workgroup collaboration, and file and print in space constrained environments.

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Dell PowerEdge R420 Rack Server - Specifications

Processor - 2 Sockets
    Intel® Xeon® processor E5-2400 and E5-2400 v2 product families
    Intel QuickPath Interconnect (QPI) link: 6.4GT/s; 7.2GT/s; 8.0 GT/s

  • 2.5MB per core
  • Core options: 4, 6, 8, 10
Operating System
  • Microsoft® Windows Server® 2012
  • Microsoft Windows Server 2008 R2 SP1, x64 (includes Hyper-V®)
  • Novell® SUSE® Linux Enterprise Server
  • Red Hat® Enterprise Linux®
  • Virtualization options:

  • Citrix® XenServer®
  • VMware® vSphere® ESXi™
  • Red Hat Enterprise Virtualization®
    Intel® C602
    Up to 384GB
    Up to 1600MT/s DDR3
    12 DIMM slots (6 DIMMs per CPU)
    Maximum internal storage:

  • Up to 16TB
  • Hot-plug hard drive options:

  • 2.5” SATA, nearline SAS, SAS (15K, 10K), SAS SSD, SATA SSD, SAS 512n (15K)
  • 3.5” SATA, nearline SAS, SAS (15K)
  • Self-encrypting drives available
  • Cabled hard drive options:

  • 3.5” SATA, nearline SAS, SAS (15K)
Drive Bays
  • Up to 8 2.5” hot-plug SSD, SAS, or SATA
  • Up to 4 3.5” hot-plug SAS, SATA, or SSD
    2 PCIe slots:

  • With two processors:
    • One x16 PCIe slot with x16 bandwidth, half-length, half-height
    • One x16 PCIe slot with x16 bandwidth, half-length, full-height
  • With one processor:
    • One x8 PCIe slot with x4 bandwidth, half-length, half-height
    • One x16 PCIe slot with x16 bandwidth, half-length, full-height
Network Controller
    Embedded NIC:

  • Broadcom® 5720 Dual Port 1Gb LOM
  • I/O adapter options:

  • 1Gb Ethernet:
    • Broadcom 5720 Dual Port 1Gb NIC
    • Broadcom 5719 Quad Port 1Gb NIC
    • Intel I350 Dual Port 1Gb stand-up adapter
    • Intel I350 Quad Port 1Gb stand-up adapter
  • 10Gb Converged Ethernet:
    • Brocade® BR1020 Dual Port 10Gb CNA
    • QLogic® QLE8262 Dual Port 10Gb DA/SFP+
    • Broadcom 57810S Dual Port 10Gb Base-T CNA
    • Broadcom 57810S Dual Port 10Gb DA/SFP+ CNA
  • 10Gb Ethernet:
    • Intel X520 Dual Port 10Gb DA/SFP+ server adapter
    • Intel X540 Dual Port 10Gb Base-T adapter
  • FC8/FC4 HBA:
    • QLogic QLE2460 4Gb Single Port FC HBA
    • QLogic QLE2462 4Gb Dual Port FC HBA
    • QLogic QLE2560 8Gb Single Port FC HBA
    • QLogic QLE2562 8Gb Dual Port FC HBA
    • Emulex® LPe-12000-E 8Gb Single Port FC HBA
    • Emulex LPe-12002-E 8Gb Dual Port FC HBA
    • Brocade 815 8Gb Single Port FC HBA
    • Brocade 825 8Gb Dual Port FC HBA
  • Platinum efficiency hot-plug 550W and 350W power supplies
  • Silver efficiency cabled 550W power supply
  • Auto-ranging power supplies
  • High-efficiency, hot-plug, redundant power supplies
  • Hot-plug hard drives
  • TPM
  • Dual internal SD support
  • Fan fault tolerance
  • Optional bezel
  • Luggage tag
  • ECC memory
  • Interactive LCD screen
  • ENERGY STAR® compliant
    1U Rack
    Internal controllers:

  • PERC S110 (SW RAID)
  • PERC H310
  • PERC H710
  • PERC H710P
  • External HBAs (RAID):

  • PERC H810
  • External HBAs (non RAID):

  • 6Gbps SAS HBA
    Remote management:

  • Basic management (default)
  • iDRAC7 with Lifecycle Controller
  • iDRAC7 Express (upgrade)
  • iDRAC7 Enterprise (upgrade)
  • 8GB vFlash media (upgrade)
  • 16GB vFlash media (upgrade)
  • Systems management:

  • IPMI 2.0 compliant
  • Dell OpenManage™ Essentials and Dell Management Console
  • Dell OpenManage Power Center
  • Dell OpenManage Connections:
    • OpenManage Integration Suite for Microsoft® System Center
    • Dell plug-in for VMware® vCenter™
    • HP Operations Manager
    • IBM Tivoli® Netcool®
    • CA Network and Systems Management
Rack Support
    ReadyRails™ II sliding rails for tool-less mounting in 4-post racks with square or unthreaded round holes or tooled mounting in 4-post threaded hole racks, with support for optional tool-less cable management arm
    ReadyRails static rails for tool-less mounting in 4-post racks with square or unthreaded round holes or tooled mounting in 4-post threaded and 2-post (Telco) racks

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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.