Dell Inspiron 5721 User Manual

10 | Before You Begin
Safety Instructions
Use the following safety guidelines to protect your computer from potential damage and
ensure your personal safety.
WARNING: Before working inside your computer, read the safety information
that shipped with your computer. For additional safety best practices
information, see the Regulatory Compliance Homepage at
dell.com/regulatory_compliance.
WARNING: Disconnect all power sources before opening the computer cover or
panels. After you finish working inside the computer, replace all covers, panels,
and screws before connecting to the power source.
CAUTION: To avoid damaging the computer, ensure that the work surface is flat
and clean.
CAUTION: To avoid damaging the components and cards, handle them by their
edges and avoid touching pins and contacts.
CAUTION: Only a certified service technician is authorized to remove the
computer cover and access any of the components inside the computer. See the
safety instructions for complete information about safety precautions, working
inside your computer, and protecting against electrostatic discharge.
CAUTION: Before touching anything inside your computer, ground yourself by
touching an unpainted metal surface, such as the metal at the back of the
computer. While you work, periodically touch an unpainted metal surface to
dissipate static electricity, which could harm internal components.
CAUTION: When you disconnect a cable, pull on its connector or on its pull-tab,
not on the cable itself. Some cables have connectors with locking tabs or
thumb-screws that you must disengage before disconnecting the cable.
When disconnecting cables, keep them evenly aligned to avoid bending any
connector pins. When connecting cables, ensure that the connectors and ports
are correctly oriented and aligned.
CAUTION: To disconnect a network cable, first unplug the cable from your
computer and then unplug the cable from the network device.
CAUTION: Press and eject any installed card from the media-card reader.
Recommended Tools
The procedures in this document may require the following tools:
• Phillips screwdriver
• Plastic scribe
book.book Page 10 Friday, December 14, 2012 3:32 PM

Dell Inspiron 5721 Specifications

General

Bus type	DMI
Stepping	L1
Tjunction	105 °C
Processor cache	4 MB
Processor cores	2
System bus rate	5 GT/s
Processor family	Intel® Core™ i7
Processor series	Intel Core i7-3500 Mobile series
Processor socket	BGA 1023
Processor threads	4
Processor codename	Ivy Bridge
Processor frequency	2 GHz
Processor cache type	Smart Cache
Processor lithography	22 nm
Processor manufacturer	Intel
Processor front side bus	- MHz
PCI Express slots version	2.0
Processor boost frequency	3.1 GHz
Processor operating modes	64-bit
ECC supported by processor	No
PCI Express configurations	1x8, 1x16, 2x4, 2x8
Thermal Design Power (TDP)	17 W
CPU multiplier (bus/core ratio)	20
Maximum number of PCI Express lanes	16
Motherboard chipset	Intel HM76 Express
Memory slots	2x SO-DIMM
Internal memory	8 GB
Memory clock speed	1600 MHz
Memory form factor	SO-DIMM
Internal memory type	DDR3-SDRAM
Memory layout (slots x size)	2 x 4 GB
LightScribe	-
AC adapter included	Yes
Disc types supported	CD, DVD
Intel® Virtualization Technology (Intel® VT)	VT-d, VT-x
HDD size	2.5 \
HDD speed	5400 RPM
HDD interface	SATA
Storage media	HDD
Optical drive type	DVD Super Multi DL
Total storage capacity	1000 GB
Compatible memory cards	Memory Stick (MS), MMC, MMC+, MS PRO, MSXC, SD, SDHC, SDXC
Number of HDDs installed	1
Display diagonal	17.3 \
Native aspect ratio	16:9
On-board graphics card ID	0x166
Discrete graphics card model	AMD Radeon HD 8730M
On-board graphics card model	Intel® HD Graphics 4000
Discrete graphics card memory	2 GB
Discrete graphics memory type	GDDR5
On-board graphics card family	Intel® HD Graphics
On-board graphics card base frequency	350 MHz
On-board graphics card dynamic frequency (max)	1200 MHz
Audio system	Waves MaxxAudio 4
Front camera resolution (numeric)	1 MP
Data network	Not supported
Wi-Fi standards	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Bluetooth version	4.0
Ethernet LAN data rates	10, 100 Mbit/s
HDMI version	1.4a
Charging port type	DC-in jack
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
VGA (D-Sub) ports quantity	0
Pointing device	Touchpad
Operating system installed	Windows 8
Form factor	Clamshell
Product type	Laptop
Product color	Charcoal
Processor code	SR0XG
Processor ARK ID	72054
Processor package size	31 x 24 (BGA1023) mm
Supported instruction sets	AVX
Intel Identity Protection Technology version	1.00
Battery capacity	65 Wh
Battery life (max)	- h
Number of battery cells	6
Cable lock slot type	Kensington
Cables included	AC
AC adapter power	65 W

Weight and Dimensions

Depth	270 mm
Width	412 mm
Weight	2730 g
Height (rear)	35.6 mm
Height (front)	28.34 mm