Dell Inspiron 1720 User Manual

Troubleshooting 119
Network Problems
Fill out the "Diagnostics Checklist" on page 178 as you complete these
checks.
CAUTION: Before you begin any of the procedures in this section, follow the
safety instructions in the Product Information Guide.
C
HECK THE NETWORK CABLE CONNECTOR — Ensure that the network cable is
firmly inserted into both the network connector on the back of the computer
and the network jack.
CHECK THE NETWORK LIGHTS ON THE NETWORK CONNECTOR — No light
indicates that no network communication exists. Replace the network cable.
RESTART THE COMPUTER AND LOG ON TO THE NETWORK AGAIN
CHECK YOUR NETWORK SETTINGS — Contact your network administrator or
the person who set up your network to verify that your network settings are
correct and that the network is functioning.
Mobile Broadband (Wireless Wide Area Network [WWAN])
NOTE: The Dell Mobile Broadband Card Utility user’s guide and the Mobile
Broadband ExpressCard user’s guide are available through Windows Help and
Support (click Start → Help and Support). You can also download the Dell
Mobile Broadband Card Utility user’s guide from support.dell.com.
NOTE: The icon appears in the notification area if the computer has a Dell
WWAN device installed. Double-click the icon to launch the utility.
A
CTIVATE THE MOBILE BROADBAND EXPRESSCARD — You must activate the
Mobile Broadband ExpressCard before you can connect to the network.
Position the mouse over the icon in the notification area to verify the
status of the connection. If the card is not activated, follow the card
activation instructions located within the Dell Mobile Broadband Card
Utility. To access the utility, double-click the icon located in the taskbar,
at the lower-right corner of your screen. If your ExpressCard is not a Dell-
branded card, see the manufacturer’s instructions for your card.
CHECK NETWORK CONNECTION STATUS IN THE DELL MOBILE BROADBAND CARD
U
TILITY — Double-click the icon to launch the Dell Mobile Broadband
Card Utility. Check the status in the main window:
• No card detected — Restart the computer, and launch the Dell Mobile
Broadband Card Utility
again.

Dell Inspiron 1720 Specifications

General

Bus type	FSB
Stepping	C0
Tjunction	105 °C
Processor cache	6 MB
Processor cores	2
Processor family	Intel® Core™2 Duo
Processor series	Intel Core 2 Duo T9000 Series
Processor socket	LGA 3647 (Socket P)
Processor codename	Penryn
Processing Die size	107 mm²
Processor frequency	2.5 GHz
Processor cache type	L2
Processor lithography	45 nm
Processor system type	Up
Processor manufacturer	Intel
Processor front side bus	800 MHz
Processor operating modes	64-bit
ECC supported by processor	No
Thermal Design Power (TDP)	35 W
Processor core voltage (AC)	1.062 - 1.150 V
CPU multiplier (bus/core ratio)	12.5
Number of Processing Die Transistors	410 M
HDD speed	5400 RPM
HDD interface	SATA
Card reader integrated	Yes
Display diagonal	17 \
Display resolution	1440 x 900 pixels
Native aspect ratio	16:10
Internal memory	4 GB
Memory clock speed	667 MHz
Internal memory type	DDR2-SDRAM
Memory layout (slots x size)	2 x 2 GB
Discrete graphics card model	NVIDIA GeForce Go 8600M GT
Maximum graphics card memory	0.256 GB
Keyboard layout	QWERTY
Pointing device	Touchpad
Type	PC
Modem speed	56.6 Kbit/s
Wireless technology	802.11n
Bluetooth version	2.0+EDR
Bundled software	Microsoft Works 9.0 - Danish
Operating system installed	Windows Vista Home Premium
Number of battery cells	6
TV-out type	S-Video
Charging port type	DC-in jack
Serial ports quantity	0
USB 2.0 ports quantity	5
AC adapter power	90 W
Processor code	SLAYY
Processor ARK ID	33917
Processor package size	35 x 35 mm

Weight and Dimensions

Depth	293 mm
Width	394 mm
Weight	3450 g
Height (rear)	44 mm
Height (front)	39 mm