Dell PowerEdge R720 User Manual

23 PowerEdge R720 and R720xd Technical Guide
 Two double-wide GPUs require the optional riser 3 with a single x16 slot
 Four single-wide GPUs cannot occupy optional riser 3 with a single x16 slot
 Dell PowerVault RD1000 backup unit not supported
External GPU support
For external GPU support, the R720 connects 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 supports up to four GPUs maximum due to internal memory allocation for the PCIe subsystem.
More than four GPUs per HIC attached to the server will impact performance of other PCIe
devices. The R720 supports up to eight GPUs in the PowerEdge C410x external chassis. For a list of
supported GPU HICs, see Table 18. For more information about the PowerEdge C410x, see
Dell.com/PowerEdgeC.
Supported GPU cards
For a list of supported GPUs, see Table 18 and Dell.com/PowerEdge/GPU.
Operating system support for GPUs
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.
Chipset
The PowerEdge R720 and R720xd servers use the Intel C602 chipset. For more information, visit
Intel.com.

Dell PowerEdge R720 Specifications

General

Tcase	77.4 °C
Bus type	QPI
Stepping	C2
FSB Parity	No
Scalability	2S
Processor cache	15 MB
Processor cores	6
Processor model	E5-2620
System bus rate	7.2 GT/s
Processor series	Intel Xeon E5-2600
Processor socket	LGA 2011 (Socket R)
Processor threads	12
Processor codename	Sandy Bridge EP
Motherboard chipset	Intel C600
Number of QPI links	2
Processor frequency	2 GHz
Processor cache type	Smart Cache
Processor manufacturer	Intel
Processor package size	52.5 x 45.0 mm
Processor front side bus	- MHz
Processor boost frequency	2.5 GHz
Processor operating modes	64-bit
ECC supported by processor	Yes
Graphics & IMC lithography	32 nm
PCI Express configurations	x4, x8, x16
Supported instruction sets	AVX
Thermal Design Power (TDP)	95 W
Number of processors installed	1
CPU multiplier (bus/core ratio)	25
Physical Address Extension (PAE)	46 bit
Maximum number of PCI Express lanes	40
Memory types supported by processor	DDR3-SDRAM
Memory channels supported by processor	Quad
Memory clock speeds supported by processor	800, 1066, 1333 MHz
Memory bandwidth supported by processor (max)	42.6 GB/s
Maximum internal memory supported by processor	750 GB
HDD size	2.5 \
Optical drive type	DVD-RW
Total storage capacity	- GB
Maximum storage capacity	32 TB
Number of HDDs installed	-
Number of HDDs supported	8
Memory slots	24x DIMM
Internal memory	8 GB
Memory clock speed	1333 MHz
Maximum internal memory	768 GB
Cabling technology	10/100/1000Base-T(X)
USB 2.0 ports quantity	4
PCI Express slots version	3.0
Power supply	750 W
Compatible operating systems	Microsoft Windows Server 2012 \\r Microsoft Windows Server 2012 Essentials\\r Microsoft Windows Server 2008 R2 \\r Novell SUSE Linux Enterprise Server\\r Red Hat Enterprise Linux
Sustainability certificates	ENERGY STAR
Chassis type	Rack (2U)
Processor ARK ID	64594
Intel® Turbo Boost Technology	1.0
Intel Secure Key Technology version	1.00
Intel Identity Protection Technology version	0.00

Weight and Dimensions

Width	- mm