Dell External OEMR XL R720XD Quick start guide

ii PowerEdge R720 and R720xd Technical Guide
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March 2012 | Rev 1.1

iii PowerEdge R720 and R720xd Technical Guide
Table of contents
1 System overview................................................................................................................................................................. 6
Introduction........................................................................................................................................................................ 6
New technologies ..............................................................................................................................................................7
2 System features .................................................................................................................................................................. 8
Specifications ..................................................................................................................................................................... 8
Comparison of PowerEdge systems ............................................................................................................................ 10
3 Chassis views and features ..............................................................................................................................................11
Chassis views..................................................................................................................................................................... 11
Chassis features ................................................................................................................................................................14
4 Processors ..........................................................................................................................................................................18
Processor features............................................................................................................................................................18
Supported processors......................................................................................................................................................19
GPU support ......................................................................................................................................................................19
Chipset............................................................................................................................................................................... 20
5 Memory...............................................................................................................................................................................21
Supported memory ..........................................................................................................................................................21
Memory configurations .................................................................................................................................................. 22
Memory speed ................................................................................................................................................................. 23
Memory RAS features...................................................................................................................................................... 24
6 Storage ............................................................................................................................................................................... 25
Internal storage ................................................................................................................................................................ 25
External storage ............................................................................................................................................................... 27
Storage controllers.......................................................................................................................................................... 27
Optical drives.................................................................................................................................................................... 29
Tape drives........................................................................................................................................................................ 29
7 Networking and PCIe ...................................................................................................................................................... 30
Select Network Adapters................................................................................................................................................30
PCIe expansion ................................................................................................................................................................ 32
8 Power, thermal, and acoustics ...................................................................................................................................... 34
Power consumption and energy efficiency................................................................................................................ 34
Power supply units .......................................................................................................................................................... 35
Thermal and acoustics.................................................................................................................................................... 36
9 Rack rails and cable management ................................................................................................................................ 39
Sliding and static rail systems ........................................................................................................................................ 39
Cable management arm..................................................................................................................................................41
10 Operating systems and virtualization ........................................................................................................................... 42
Supported operating systems........................................................................................................................................ 42
Supported virtualization ................................................................................................................................................. 43
11 Dell OpenManage systems management.................................................................................................................... 44
Systems management solutions...................................................................................................................................44
OpenManage systems management ........................................................................................................................... 45
Dell server management operations............................................................................................................................ 49
Appendix A. Additional specifications.......................................................................................................................... 52
Chassis dimensions ......................................................................................................................................................... 52
Chassis weight.................................................................................................................................................................. 52
Power supply specifications .......................................................................................................................................... 53
Environmental specifications ........................................................................................................................................ 53
Video specifications ........................................................................................................................................................ 54
Rack rail specifications ................................................................................................................................................... 55
USB peripherals................................................................................................................................................................ 55

iv PowerEdge R720 and R720xd Technical Guide
Appendix B. Standards compliance ............................................................................................................................. 56
Appendix C. Additional resources................................................................................................................................. 57
Table 1. New technologies .................................................................................................................................................7
Table 2. Technical specifications...................................................................................................................................... 8
Table 3. Comparison of PowerEdge R710, R720, and R720xd ................................................................................. 10
Table 4. Chassis features...................................................................................................................................................14
Table 5. Security features..................................................................................................................................................16
Table 6. Supported processors ........................................................................................................................................19
Table 7. Memory technologies supported.....................................................................................................................21
Table 8. DIMMs supported............................................................................................................................................... 22
Table 9. Memory speed capabilities ............................................................................................................................... 23
Table 10. Memory RAS features ........................................................................................................................................ 24
Table 11. Chassis options................................................................................................................................................... 25
Table 12. Supported hard drives ....................................................................................................................................... 26
Table 13. Supported external storage device types....................................................................................................... 27
Table 14. RAID controllers ................................................................................................................................................. 28
Table 15. Supported Select Network Adapter options and features ...........................................................................31
Table 16. PCIe expansion slots.......................................................................................................................................... 32
Table 17. Supported NICs and HBAs................................................................................................................................ 32
Table 18. Supported PCIe expansion cards .................................................................................................................... 33
Table 19. Power tools and technologies ......................................................................................................................... 34
Table 20. Power supply efficiency .................................................................................................................................... 36
Table 21. R720 acoustical performance (2.5-inch chassis) ......................................................................................... 38
Table 22. R720xd acoustical performance (2.5-inch chassis) ..................................................................................... 38
Table 23. Supported rack rail system ...............................................................................................................................40
Table 24. Primary operating system support .................................................................................................................. 42
Table 25. Virtual guest operating system support ......................................................................................................... 43
Table 26. Virtualization support ........................................................................................................................................ 43
Table 27. iDRAC7 with Lifecycle Controller functions and benefits........................................................................... 45
Table 28. Feature comparison for iDRAC7 Express and Enterprise ............................................................................ 46
Table 29. One-to-one and one-to-many operations .................................................................................................. 50
Table 30. Chassis weight .................................................................................................................................................... 52
Table 31. Power supply specifications............................................................................................................................. 53
Table 32. Environmental specifications ........................................................................................................................... 53
Table 33. Supported video modes.................................................................................................................................... 54
Table 34. Rail adjustability ranges ..................................................................................................................................... 55
Table 35. Industry standard documents .......................................................................................................................... 56
Table 36. Additional resources .......................................................................................................................................... 57
Figure 1. R720 front view (2.5” chassis with bezel) ........................................................................................................ 11
Figure 2. R720 front view (2.5” chassis without bezel).................................................................................................. 11
Figure 3. R720xd front view (with bezel) .........................................................................................................................12
Figure 4. R720xd front view (2.5-inch chassis without bezel) .....................................................................................12
Figure 5. R720 back view....................................................................................................................................................12
Figure 6. R720xd back view................................................................................................................................................13
Figure 7. R720 internal chassis view.................................................................................................................................13
Figure 8. R720xd internal chassis view.............................................................................................................................14
Figure 9. R720 LCD control panel.....................................................................................................................................15
Figure 10. R720xd LED panel ...............................................................................................................................................15
Figure 11. QRL code inside chassis.....................................................................................................................................16
Figure 12. Rack network daughter card (NDC)................................................................................................................30

v PowerEdge R720 and R720xd Technical Guide
Figure 13. 750W power supply unit (R720) ...................................................................................................................... 36
Figure 14. Sliding rails with optional CMA ........................................................................................................................ 39
Figure 15. Static rails.............................................................................................................................................................40
Figure 16. Dell systems management solutions..............................................................................................................44
Figure 17. Systems management server lifecycle ........................................................................................................... 50
Figure 18. Chassis dimensions............................................................................................................................................ 52
.

6 PowerEdge R720 and R720xd Technical Guide
The Dell™ PowerEdge™ R720 and R720xd are Dell’s latest 2-socket, 2U rack servers that are
designed to run complex workloads using highly scalable memory, I/O capacity, and flexible
network options. Both systems feature the Intel®Xeon®processor E5-2600 product family,
up to 24 DIMMS, PCI Express®(PCIe) 3.0 enabled expansion slots, and a choice of NIC technologies.
The PowerEdge R720 is a general-purpose platform with highly expandable memory (up to 768GB)
and impressive I/O capabilities to match. The R720 can readily handle very demanding workloads,
such as data warehouses, e-commerce, virtual desktop infrastructure (VDI), databases, and high
performance computing (HPC) as a data node.
In addition to the R720’s capabilities, the R720xd offers extraordinary storage capacity, making it well
suited for data-intensive applications that require storage and I/O performance, like medical imaging
and email servers.
Keep pace with the explosion of data in the virtual age with the flexible I/O and storage capabilities
of the R720 and R720xd. The R720 supports up to sixteen internal hard drives to increase your
capacity, while optional hot-plug, front-access Express Flash PCIe solid-state drives (up to four)
enable performance-enhancing, in-box storage tiering.
The PowerEdge R720xd allows you to quickly access and process vast amounts of data with up to
twenty-six internal hot-plug hard disks. The R720xd is a great solution for any mid-size or large
business that requires scalability in storage capacity.
The R720 and R720xd allow you to tailor your network throughput to match your application needs,
enabling added I/O performance. Select Network Adapters, Dell’s flexible NIC technology, let you
choose the right network fabric without using up a valuable PCI slot. You can pick speed,
technology, vendor and other options, like switch independent partitioning (SIP) that lets you share
and manage bandwidth on 10GbE connections.
Maximize your data center’s application capacity by expanding your virtual environment using the
large memory footprint of the R720 and R720xd. Choose an industry-leading hypervisor and take
advantage of our system management capability to manage both physical and virtual assets.
Redundant failsafe hypervisors can also help maximize your virtual machines’ uptime. Dell’s Virtual
Integrated System™ (VIS) solution lets you enable complex virtualization environments in just a few
mouse clicks.
The Dell OpenManage™ systems management portfolio includes the Integrated Dell Remote Access
Controller (iDRAC) with Lifecycle Controller. Dell embedded server management features help IT
Administrators manage Dell servers in physical, virtual, local and remote environments, operating
in-band or out-of-band, with or without a systems management software agent. OpenManage also
integrates with and connects to third-party systems management solutions so you can maintain
your single point of control and capitalize on your existing investment. OpenManage solutions

7 PowerEdge R720 and R720xd Technical Guide
simplify the lifecycle of deploying, updating, monitoring, and maintaining your Dell PowerEdge
servers.
New technologies featured on the PowerEdge R720 and R720xd systems are detailed in Table 1.
New technologies
Detailed descriptions
Intel Xeon processor
E5-2600 product family
This new family of Intel processors has embedded PCIe lanes for improved I/O
performance. See the Processors section for details.
Intel C600 series chipset
The Intel Platform Controller Hub (PCH) chip is used on the R720 and R720xd.
1600 MT/s DDR3
memory
Certain models of E5-2600 series processors support 1600 MT/s memory. The
R720 and R720xd support two DIMMs per channel at 1600 MT/s with these
processors. See the Memory section for details.
LRDIMM
This new memory option, load reduced DIMM (LRDIMM), is designed with a buffer
chip (or chips) to replace the register to help minimize loading. LRDIMMs can
increase overall server system memory capacity and speed. See the Memory
section for more information.
Flexible LOM
Dell’s Select Network Adapter options allow you to customize your LAN port
combinations from your choice of controller vendors. See the Networking and
PCIe section for details.
Next generation PERC
options
The R720 and R720xd support new PERC controller cards with improved
functionality and faster performance. See the Storage section for details.
PERC S110 software
RAID solution
This new software RAID solution supports RAID 0, 1, 5 and 10 and supports a
maximum of four hot-plug SATA HDDs or SSDs. See the Storage section for details.
Express Flash drives1
Dell Express Flash PCIe solid-state drives provide fast performance without
requiring processor resources or capturing DRAM. The R720 supports up to four
Express Flash drives. The R720xd does not support Express Flash drives.
iDRAC7 with Lifecycle
Controller
The new embedded system management solution for Dell servers features
hardware and firmware inventory and alerting, in-depth memory alerting, faster
performance, a dedicated gigabit port and many more features. See the Dell
OpenManage systems management section for details.
Internal GPU support
The R720 supports internal graphics processing units (GPUs) for extreme
computing power to solve high performance computing (HPC) needs. The R720xd
does not support internal GPUs. See the Processors section for details.
Advanced power
management
The R720 and R720xd support advanced power monitoring and power capping
tools that can help manage power consumption.
DC power supply1
A new 1100W DC power supply option will be available for the R720 and R720xd.
Failsafe hypervisors
The internal dual SD module enables Dell's unique Failsafe Virtualization
architecture, ensuring uptime by providing failover capability for embedded
hypervisors, such as VMware®ESXi™.
Fresh air cooling
Dell has tested and validated an integrated data center solution that enables you to
operate at higher temperatures or even chiller-less. See the Power, thermal, and
acoustics section for details.
1Available Q2 2012

8 PowerEdge R720 and R720xd Technical Guide
Compared to the previous generation of Dell™ PowerEdge™ servers, the R720 and R720xd have
more drive bay options, more PCIe slots, a larger memory footprint, flexible I/O, Express Flash PCIe
solid-state drives (available Q2 2012), advanced system management, and hot-plug redundant
cooling. The R720 also supports optional dual internal RAID controllers and up to four optional
internal GPUs.
Table 2 lists the technical specifications for the PowerEdge R720 and R720xd systems. For the latest
information on supported features, visit Dell.com.
Feature
Specification
Form factor
2U rack
Processors
Intel®Xeon®processor E5-2600 product family
Processor sockets
2
Front side bus (FSB)
2 Intel QuickPath Interconnect (QPI) links; 6.4 GT/s; 7.2 GT/s; 8.0 GT/s
Cache
2.5MB per core; core options: 2, 4, 6, 8
Chipset
Intel C600
Memory1
Up to 768GB (24 DIMM slots): 2GB/4GB/8GB/16GB/32GB DDR3 up to 1600MT/s
PCIe slots
R720:
7 PCIe slots:
One x16 full-length, full-height
Three x8 full-length, full-height
Three x8 half-length, half-height
R720xd:
6 PCIe slots:
Two x16 full-length, full-height
One x8 full-length, full-height
Three x8 half-length, half-height
RAID controller
Internal controllers:
PERC S110 (software RAID; R720 only)
PERC H310
PERC H710
PERC H710P
External HBAs (RAID):
PERC H810
External HBAs (non-RAID):
6Gbps SAS HBA
Hard drives
(hot-plug)
R720 drive bay options:
Up to 16 x 2.5“
Up to 8 x 2.5” + 8 x 2.5” (with dual RAID controllers)
Up to 8 x 2.5”
Up to 8 x 2.5” + 4 x 2.5” Express Flash2or up to 8 x 3.5”
R720xd drive bay options:
Up to 24 x 2.5” (front) + 2 x 2.5” (back) or
Up to 12 x 3.5” (front) + 2 x 2.5” (back)
Hard drive options:
2.5” SAS SSD, SATA SSD, SAS (15K, 10K), nearline SAS (7.2K), SATA (7.2K)
2.5” Express Flash PCIe SSD2(R720 only)
3.5” SAS (15K), nearline SAS (7.2K), SATA (7.2K)
Self-encrypting drives (SEDs) available

9 PowerEdge R720 and R720xd Technical Guide
Feature
Specification
Integrated NIC
Select Network Adapter options:
Broadcom®Quad Port 1GbE BASE-T (no TOE or iSCSI offload)
Intel Quad Port 1GbE BASE-T (no TOE or iSCSI offload)
Intel Dual Port 10GbE BASE-T with 2 x 1GbE (FCoE capability enabled on the
10GbE ports)
Broadcom Dual Port 10GbE SFP+ with 2 x 1GbE (TOE and iSCSI offload available on
10GbE ports)
Power supply
Auto-ranging, Platinum efficiency 495W, 750W, 1100W AC or
Gold efficiency 1100W DC2
Availability
High-efficiency, hot-plug, redundant power supplies; hot-plug drive bays; TPM; dual
internal SD support; hot-plug redundant fan; optional bezel; luggage-tag; ECC
memory, interactive LCD screen (R720 only); extended thermal support; ENERGY
STAR®compliant; switch independent partitioning
Remote management
iDRAC7 with Lifecycle Controller
iDRAC7 Express (default), iDRAC7 Enterprise (upgrade option)
8GB vFlash media (upgrade option), 16GB vFlash media (upgrade option)
Systems management
Dell OpenManage™ Essentials and Dell Management Console
Dell OpenManage Power Center
OpenManage Connections:
OpenManage Integration Suite for Microsoft®System Center
Dell Management Plug-in for VMware®vCenter™
OpenManage Connections for HP Operations Manager, IBM Tivoli®Netcool®, and
CA Network and Systems Management
IPMI 2.0 compliant
Rack support
ReadyRails™ sliding rails with optional cable management arm for 4-post racks
Operating systems
Microsoft Windows Server®2008 R2 SP1, x64 (includes Hyper-V™ v2)
Microsoft Windows®HPC Server 2008
Microsoft Windows Small Business Server 2011
SUSE®Linux®Enterprise Server
Red Hat®Enterprise Linux
Optional embedded hypervisors:
Citrix®XenServer™
VMware vSphere™
For more information on the specific versions and additions, visit
Dell.com/OSsupport.
1GB means 1 billion bytes and TB means 1 trillion bytes; actual capacity varies with preloaded material and operating
environment and will be less
2Available Q2 2012

10 PowerEdge R720 and R720xd Technical Guide
The PowerEdge R720 and R720xd are replacements for the predecessor R710 system, three systems
which are compared in Table 3. For the latest information on supported features, visit Dell.com.
Feature
PowerEdge R710
PowerEdge R720 (new)
PowerEdge R720xd (new)
Chassis
2U rack
2U rack
2U rack
Processors
Intel®Xeon®processors 5500
and 5600 series
Intel Xeon processor E5-2600
product family
Intel Xeon processor E5-2600
product family
Front Side Bus (FSB)
Intel QuickPath Interconnect
Intel QuickPath Interconnect
Intel QuickPath Interconnect
Memory1
18 x DDR3 RDIMM and
UDIMM
Up to 288GB
24 x DDR3 RDIMM, UDIMM,
and LRDIMM
Up to 768GB
24 x DDR3 RDIMM, UDIMM,
and LRDIMM
Up to 768GB
Hard drive bays
(hot plug)
Up to 8 x 2.5” or 6 x 3.5”
Up to 16 x 2.5“ or 8 x 3.5”
Up to 24 x 2.5“+ 2 x 2.5” or 12 x
3.5” + 2 x 2.5”
RAID controller
PERC 6/i, SAS 6/iR, PERC 6/E,
H200, H700, H800
PERC S110, H310, H710,
H710P, H810 (external);
supports multiple (2) internal
RAID controllers
PERC H310, H710, H710P,
H810 (external)
PCI slots
4 PCIe 2.0
7 PCIe 3.0
6 PCIe 3.0
Express Flash drives2
Not supported
Up to 4
Not supported
Onboard NICs
4 x 1GbE with optional TOE
Select Network Adapter:
minimum configuration of
4 x 1Gb, 10GbE (optional)
Select Network Adapter:
minimum configuration of
4 x 1Gb, 10GbE (optional)
Power supplies
Hot-plug, redundant power
supply units: 570W or 870W
Hot-plug, redundant power
supply units: 495W, 750W,
1100W, 1100W DC1
Hot-plug, redundant power
supply units: 495W, 750W,
1100W, or 1100W DC2
Power efficiency
Gold
Platinum
Platinum
Systems
management
Dell OpenManage™
Dell Management Console
Lifecycle Controller 1.x
Dell OpenManage Essentials
Dell Management Console
Lifecycle Controller 2.x
OpenManage Power Center
Dell OpenManage Essentials
Dell Management Console
Lifecycle Controller 2.x
OpenManage Power Center
Remote
management
iDRAC6 (Express or Enterprise)
with Lifecycle Controller 1.x
iDRAC7 (Express or Enterprise)
with Lifecycle Controller 2.x
iDRAC7 (Express or Enterprise)
with Lifecycle Controller 2.x
Internal GPU
Not supported
2 x 300W (double wide) or
4 x 150W (single wide)
Not supported
Availability
Hot-plug drives,
redundant cooling,
hot-plug, redundant power
supply units,
internal SD module
Hot-plug drives,
hot-plug redundant cooling,
hot-plug redundant power
supply units,
internal dual SD module
Hot-plug drives,
hot-plug redundant cooling,
hot-plug redundant power
supply units,
internal dual SD module
1GB means 1 billion bytes and TB means 1 trillion bytes; actual capacity varies with preloaded material and operating
environment and will be less
2Available Q2 2012

11 PowerEdge R720 and R720xd Technical Guide
The Dell™ PowerEdge™ R720 and R720xd implement a new chassis design which supports an
increased number of DIMMs, PCIe slots, and hard drives, relative to their predecessor servers. The
following sections provide external and internal views of the systems and describe the chassis
features.
For information on features and descriptions for these systems, see the Dell PowerEdge R720 and
R720xd Owner's Manual on Support.Dell.com/Manuals.
The R720 and R720xd are available in several chassis options with varying numbers of drive bays.
Note that a chassis cannot be reconfigured or upgraded after point of purchase.
The R720 supports up to sixteen 2.5” or up to eight 3.5” front-accessible, hot-plug hard drives that
are secured by a removable front bezel. Other front-panel features include an interactive LCD
control panel, two USB connectors, a video connector, and a vFlash media card slot.

12 PowerEdge R720 and R720xd Technical Guide
The R720xd supports up to twenty-four 2.5” or up to twelve 3.5” front-accessible, hot-plug hard
drives that are secured by a removable front bezel. Other front-panel features include an LED
control panel, a USB connector, and a video connector.
The R720 back panel includes features such as redundant hot-plug power supply units (PSUs), four
Ethernet connectors, PCI expansion slots, and many other features that are described in the rest of
this guide.

13 PowerEdge R720 and R720xd Technical Guide
In addition to the R720 back-panel features, the R720xd also includes two optional 2.5-inch
hot-plug drives in the back of the system.
The chassis design of the R720 and R720xd is optimized for easy access to components and for
airflow for effective and efficient cooling. The R720 and R720xd support up to 24 DIMMs, 2
processors, hot-plug redundant fans, and many other components and features that are described
in this guide.

14 PowerEdge R720 and R720xd Technical Guide
For additional system views, see the Dell PowerEdge R720 and R720xd Systems Owner’s Manual on
Support.Dell.com/Manuals.
Table 4 lists the chassis features for the R720 and R720xd systems. For additional information on
these features, see the Dell PowerEdge R720 and R720xd Systems Owner’s Manual on
Support.Dell.com/Manuals.
Feature
Description
Power button and indicator
ACPI-complaint power button with an integrated green power LED
NMI button
Recessed non-maskable interrupt (NMI) button used to troubleshoot
software and device driver errors; use only if directed to do so by
qualified support personnel or by the operating system's documentation
System identification button
Buttons on the back and front of a system to help identify the unit in a
data center environment
Hard drive activity LEDs
Indicate the status and activity of the hard drives
USB connectors
Two (R720) or one (R720xd) front, two back, and one internal USB
connector
vFlash media reader
Supports one vFlash media card (the R720 slot is located in the front of
the system and the R720x slot is located in the back); functionality is
activated only when iDRAC Enterprise is enabled
Video connector
Connects a monitor to the system
LCD control panel
Provides user access to buttons, display, and I/O interfaces (R720 only)
LED panel
Indicates the status of system conditions (R720xd only)
Hard drives
Front-accessible, hot-plug hard drives plus two optional
back-accessible hot-plug hard drives (R720xd only)

15 PowerEdge R720 and R720xd Technical Guide
Feature
Description
Optical drive (optional)
The R720 supports one optional slimline SATA DVD-ROM drive or
DVD+/-RW drive; R720xd does not support an internal optical drive
System identification panel
Slide-out label panel for system information
Serial connector
Connects a serial device to the system and for console redirect
iDRAC7 Enterprise port
Dedicated management port for optional iDRAC7 Enterprise
Security cable slot
Connects cable lock to system
PCIe expansion card slots
The R720 supports up to seven PCIe expansion cards; R720xd supports
up to six PCIe expansion cards
Ethernet connectors
Choice of network connectors through Select Network Adapter family
Power supply units
Up to two back-accessible, hot-plug power supplies
Power supply indicators
Indicate whether system has power
NIC indicators
Indicate network activity and status
Quick Resource Locator (QRL)
This code on the chassis can be scanned by a phone application to
access information about the server
The R720 system control panel is located on the front of the chassis to provide user access to
buttons, display, and I/O interfaces. For more information on the R720 LCD control panel, see the
Dell PowerEdge R720 and R720xd Owner's Manual on Support.Dell.com/Manuals.
The R720xd LED panel is located on the front of the chassis to indicate the status of system
conditions. For more information on the R720xd LED panel, see the Dell PowerEdge R720 and
R720xd Systems Owner's Manual on Support.Dell.com/Manuals.

16 PowerEdge R720 and R720xd Technical Guide
A useful feature included with Dell™ PowerEdge 12th generation servers is the Quick Resource
Locator (QRL)—a model-specific Quick Response (QR) code that is located on the server (shown in
Figure 11). Just use your phone to access the Dell QRL application to learn more about the server.
This QRL code allows you to:
View step-by-step videos, including overviews of system internals and externals, as well as
detailed, concise, task-oriented videos and installation wizards
Locate reference materials, including searchable owner’s manual content, LCD diagnostics, and
an electrical overview
Look up your service tag so you can quickly gain access to your specific hardware configuration
info and warranty information
Contact Dell directly (by link) to get in touch with technical support and sales teams and provide
feedback to Dell
These codes provide an easy way to retrieve the critical support information you need when you
need it, making you more efficient and effective in managing your hardware.
The latest generation of PowerEdge servers has the features listed in Table 5 to help ensure the
security of your data center.
Security feature
Description
Cover latch
A tooled latch is integrated in the top cover to secure it to the rack chassis.
Front bezel
An optional metal bezel is mounted to the chassis front to provide the Dell ID.
A lock on the bezel is used to protect un-authorized access to hard drives.
System status is viewable on the LCD or LED panel when the bezel is installed.

17 PowerEdge R720 and R720xd Technical Guide
Security feature
Description
TPM
The Trusted Platform Module (TPM) is used to generate/store keys,
protect/authenticate passwords, and create/store digital certificates. It also
supports the Intel Xeon TXT functionality. TPM can also be used to enable the
BitLocker™ hard drive encryption feature in Windows Server®2008. TPM 1.2 is
supported. No TPM version is available for China or Russia.
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 mode
BIOS has the ability to enter a secure boot mode through system setup. This
mode includes the option to lock out the power and NMI switches on the
control panel or set up a system password.

18 PowerEdge R720 and R720xd Technical Guide
The Dell™ PowerEdge™ R720 and R720xd feature the Intel®Xeon®processor E5-2600 product
family, offering an ideal combination of performance, power efficiency, and cost. These processors
provide high performance no matter what your constraint is—floor space, power, or budget—and
on workloads that range from the most complicated scientific exploration to crucial web-serving
and infrastructure applications. In addition to providing raw performance gains, improved I/O is also
made possible with Intel Integrated I/O, which can reduce latency by adding more lanes and
doubling bandwidth. This helps to reduce network and storage bottlenecks, unleashing the
processor’s performance capabilities.
The new Intel Xeon processor E5-2600 product family not only adds new features, but also
improves upon many features of the predecessor Intel Xeon processor 5600 series, including:
Up to two additional cores and up to 8MB more last level cache
More memory—six additional DIMMs and support for up to 32GB DIMMs, which increases
memory capacity from 288GB (R710) to 768GB (R720/R720xd)
Intel Integrated I/O has support for up to 80 lanes of PCIe 3.0, which can reduce latency
Faster connections are provided throughout the system with support for DDR3 1600 MT/s
memory and 8.0 GT/s QPI
Intel Data Direct I/O (DDIO) allows I/O traffic to skip the main system memory and be directed
straight to the processor cache, which can provide a significant reduction in latency as well as
allowing memory to remain in a low-power state
Intel Advanced Vector Extensions offer up to double the floating point operations per clock
cycle by doubling the length of registers, which can be useful for addressing very complex
problems or dealing with large-number calculations, which are integral to many technical,
financial, and scientific computing problems
Intel Turbo Boost Technology 2.0 delivers up to double the boost than the
previous-generation turbo technology
Continued improvements to both Intel TXT and AES-NI help to better protect systems and data
For more information on the Intel®Xeon®processor E5-2600 product family, visit Intel.com.

19 PowerEdge R720 and R720xd Technical Guide
The R720 and R720xd support up to two processors with up to eight cores per processor. Table 6
lists the Intel Xeon processors supported by the PowerEdge R720 and R720xd. For the latest
information on supported processors, visit Dell.com.
Model
Speed
Cache
QPI
Cores
Turbo
TDP
E5-26901
2.9GHz
20M
8.0 GT/s
8
Yes
135W
E5-2680
2.7GHz
20M
8.0 GT/s
8
Yes
130W
E5-2670
2.6GHz
20M
8.0 GT/s
8
Yes
115W
E5-2667
2.9GHz
15M
8.0 GT/s
6
Yes
130W
E5-2665
2.4GHz
20M
8.0 GT/s
8
Yes
115W
E5-2660
2.2GHz
20M
8.0 GT/s
8
Yes
95W
E5-2650L
1.8GHz
20M
8.0 GT/s
8
Yes
70W
E5-2650
2.0GHz
20M
8.0 GT/s
8
Yes
95W
E5-2643
3.3GHz
10M
8.0 GT/s
4
Yes
130W
E5-2640
2.5GHz
15M
7.2 GT/s
6
Yes
95W
E5-2637
3.0GHz
5M
6.4 GT/s
2
Yes
80W
E5-2630
2.3GHz
15M
7.2 GT/s
6
Yes
95W
E5-2630L
2.0GHz
15M
7.2 GT/s
6
Yes
60W
E5-2620
2.0GHz
15M
7.2 GT/s
6
Yes
95W
E5-2609
2.4GHz
10M
6.4 GT/s
4
No
80W
E5-2603
1.8GHz
10M
6.4 GT/s
4
No
80W
1R720 only; not supported on R720xd.
For information on processor installation and configuration, see the Dell PowerEdge R720 and
R720xd Owner’s Manual on Support.Dell.com/Manuals.
Graphics processing unit (GPU) technology is supported on the R720, which can provide
accelerated performance for a variety of applications, including virtual desktop infrastructure (VDI)
and high-performance computing (HPC) implementations.
The R720xd does not support internal or external GPUs.
The R720 can support two 300W, full-length, double-wide GPUs or up to four 150W, full-length,
single-wide GPUs. Each GPU can support up to 6GB of dedicated GDDR5 memory. Active-cooled
GPU cards are not supported. For a list of supported GPUs, see Table 18.

20 PowerEdge R720 and R720xd Technical Guide
The R720 can connect to the PowerEdge C410x through a host interface card (HIC) and an iPass
cable. Both the NVIDIA®and Dell x16 HIC require one x16 PCIe slot. Each HIC can support up to
four GPUs. The R720 can support up to four GPUs maximum. For a list of supported GPU HICs, see
Table 18.
Some operating systems have not been validated to support GPUs. See Table 24 and Table 25 for
more information on operating system support of GPUs.
The Intel C600 chipset is implemented on the PowerEdge R720 and R720xd. For more information,
visit Intel.com.