Dell Inspiron 1720 User Manual

Appendix 193
2 Disconnect any attached devices from the computer and from their
electrical outlets.
3 Remove any installed batteries (see "Battery Performance" on page 47).
4 Moisten a soft, lint-free cloth with water, and wipe it gently across the
surface of the touch pad. Do not allow water from the cloth to seep
between the touch pad and the surrounding palm rest.
Mouse
NOTICE: Disconnect the mouse from the computer before cleaning the mouse
If your screen cursor skips or moves abnormally, clean the mouse.
Cleaning a Non-Optical Mouse
1 Clean the outside casing of the mouse with a cloth moistened with a mild
cleaning solution.
2 Turn the retainer ring on the underside of your mouse counterclockwise,
and then remove the ball.
3 Wipe the ball with a clean, lint-free cloth.
4 Blow carefully into the ball cage or use a can of compressed air to dislodge
dust and lint.
5 If the rollers inside the ball cage are dirty, clean the rollers with a cotton
swab moistened lightly with isopropyl alcohol.
6 Recenter the rollers in their channels if they are misaligned. Ensure that
fluff from the swab is not left on the rollers.
7 Replace the ball and retainer ring, and turn the retainer ring clockwise
until it clicks into place.
Cleaning an Optical Mouse
Clean the outside casing of the mouse with a cloth moistened with a mild
cleaning solution.
Media
NOTICE: Always use compressed air to clean the lens in the optical drive, and
follow the instructions that come with the compressed air product. Never touch the
lens in the drive.

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