Dell PowerEdge R720xd User Manual

15. As the system boots, observe any error message that is displayed and the diagnostic indicators on the front of the
system.
16. If the memory problem is still indicated, repeat step 12 through step 15 for each memory module installed.
If the problem persists after all memory modules have been checked, see Getting Help.
Troubleshooting An Internal USB Key
CAUTION: Many repairs may only be done by a certified service technician. You should only perform
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your
warranty. Read and follow the safety instructions that came with the product.
1. Enter the System Setup and ensure that the USB key port is enabled from the Integrated Devices screen.
2. Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
3. Open the system.
4. Locate the USB key and reseat it.
5. Close the system.
6. Turn on the system and attached peripherals and check if the USB key is functioning.
7. If the problem is not resolved, repeat step 2 and step 3.
8. Insert a different USB key that you know works properly.
9. Close the system.
If the problem is not resolved, see Getting Help.
Troubleshooting An SD Card
CAUTION: Many repairs may only be done by a certified service technician. You should only perform
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your
warranty. Read and follow the safety instructions that came with the product.
NOTE: Certain SD cards have a physical write-protect switch on the card. If the write-protect switch is turned on
then the SD card is not writeable.
1. Enter the System Setup and ensure that the Internal SD Card Port is enabled.
2. Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet.
3. Open the system.
CAUTION: If the Internal SD Card Redundancy option is set to Mirror Mode in the Integrated Devices screen
of the System Setup, you must follow the instructions in step 4 through step 7 to avoid loss of data.
NOTE: When an SD card failure occurs, the internal dual SD module controller notifies the system. On the next
reboot, the system displays a message indicating the failure.
4. If the Internal SD Card Redundancy option is set to Disabled, replace the failed SD card with a new SD card.
5. If SD card 1 has failed, remove the card from SD card slot 1. If SD card 2 has failed, install a new SD card in SD
card slot 2 and proceed to step 7.
6. Remove the card present in SD card slot 2 and insert it into SD card slot 1.
7. Insert the new SD card into SD card slot 2.
8. Close the system.
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Dell PowerEdge R720xd Specifications

General

Tcase	70 °C
Bus type	QPI
Stepping	M1
FSB Parity	No
Scalability	2S
Processor cache	10 MB
Processor cores	4
Processor model	E5-2609
System bus rate	6.4 GT/s
Processor series	Intel Xeon E5-2600
Processor socket	LGA 2011 (Socket R)
Processor codename	Sandy Bridge EP
Motherboard chipset	Intel C600
Number of QPI links	2
Processor frequency	2.4 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	2.50 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)	80 W
Number of processors installed	1
CPU multiplier (bus/core ratio)	24
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 MHz
Memory bandwidth supported by processor (max)	34.1 GB/s
Maximum internal memory supported by processor	750 GB
HDD size	3.5 \
Optical drive type	DVD-RW
Total storage capacity	- GB
Maximum storage capacity	32 TB
Number of HDDs installed	-
Number of HDDs supported	14
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	3
PCI Express slots version	3.0
Power supply	1100 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	64588
Intel Secure Key Technology version	1.00
Intel Identity Protection Technology version	0.00

Weight and Dimensions

Width	- mm