Dell Latitude 3490 User Manual

Technology and components
This chapter details the technology and components available in the system.
Power adapter
This laptop is shipped with 4.5 mm barrel plug on power adapter.
WARNING: When you disconnect the power adapter cable from the laptop, grasp the connector, not the cable
itself, and then pull firmly but gently to avoid damaging the cable.
WARNING: The power adapter works with electrical outlets worldwide. However, power connectors and power
strips vary among countries. Using an incompatible cable or improperly connecting the cable to the power strip
or electrical outlet may cause fire or equipment damage.
DDR4
DDR4 (double data rate fourth generation) memory is a higher-speed successor to the DDR2 and DDR3 technologies and allows
up to 512 GB in capacity, compared to the DDR3's maximum of 128 GB per DIMM. DDR4 synchronous dynamic random-access
memory is keyed differently from both SDRAM and DDR to prevent the user from installing the wrong type of memory into the
system.
DDR4 needs 20 percent less or just 1.2 volts, compared to DDR3 which requires 1.5 volts of electrical power to operate. DDR4
also supports a new, deep power-down mode that allows the host device to go into standby without needing to refresh its
memory. Deep power-down mode is expected to reduce standby power consumption by 40 to 50 percent.
DDR4 Details
There are subtle differences between DDR3 and DDR4 memory modules, as listed below.
Key notch difference
The key notch on a DDR4 module is in a different location from the key notch on a DDR3 module. Both notches are on the
insertion edge but the notch location on the DDR4 is slightly different, to prevent the module from being installed into an
incompatible board or platform.
Figure 1. Notch difference
Increased thickness
DDR4 modules are slightly thicker than DDR3, to accommodate more signal layers.
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72 Technology and components

Dell Latitude 3490 Specifications

General

Form factor	Clamshell
Product type	Laptop
Product color	Black
Market positioning	Business
Memory slots	2x SO-DIMM
Internal memory	8 GB
Memory clock speed	2400 MHz
Memory form factor	SO-DIMM
Internal memory type	DDR4-SDRAM
Maximum internal memory	32 GB
Memory layout (slots x size)	1 x 8 GB
AC adapter included	Yes
HDD size	2.5 \
HDD speed	7200 RPM
HDD interface	SATA
Storage media	HDD
Optical drive type	No
Total storage capacity	500 GB
Compatible memory cards	SD, SDHC, SDXC
Number of HDDs installed	1
On-board graphics card ID	0x5917
Discrete graphics card model	Not available
On-board graphics card model	Intel® UHD Graphics 620
On-board graphics card family	Intel® UHD Graphics
On-board graphics card OpenGL version	4.4
On-board graphics card base frequency	300 MHz
On-board graphics card DirectX version	12.0
On-board graphics card dynamic frequency (max)	1100 MHz
Audio chip	Realtek ALC3246
Audio system	MaxxAudio Pro
Speaker power	2 W
Speakers manufacturer	Waves
Number of built-in speakers	2
Front camera HD type	HD
Front camera resolution	1280 x 720 pixels
Front camera signal format	720p
Front camera resolution (numeric)	0.92 MP
Antenna type	2x2
Wi-Fi standards	802.11a, 802.11b, 802.11g
Bluetooth version	4.1
Top Wi-Fi standard	Wi-Fi 5 (802.11ac)
WLAN controller model	Qualcomm QCA61x4A
Ethernet LAN data rates	10, 100, 1000 Mbit/s
HDMI version	1.4
Charging port type	DC-in jack
DisplayPorts quantity	0
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.
Pointing device	Touchpad
AC adapter power	65 W
AC adapter frequency	50 - 60 Hz
AC adapter input voltage	100 - 240 V
AC adapter output current	3.34 A
AC adapter output voltage	19.5 V
Cable lock slot type	Noble
Operating altitude	0 - 3048 m
Non-operating altitude	0 - 10668 m
Storage temperature (T-T)	-40 - 65 °C
Operating temperature (T-T)	0 - 35 °C
Storage relative humidity (H-H)	0 - 95 %
Operating relative humidity (H-H)	10 - 90 %
Pixel pitch	0.226 x 0.226 mm
Pixel density	112 ppi
Display surface	Matt
Display diagonal	14 \
Display brightness	220 cd/m²
Display resolution	1366 x 768 pixels
Native aspect ratio	16:9
Contrast ratio (typical)	300:1
Bus type	OPI
Stepping	Y0
Tjunction	100 °C
Processor cache	6 MB
Processor cores	4
System bus rate	4 GT/s
Processor family	Intel® Core™ i5
Processor socket	BGA 1356
Processor threads	8
Processor codename	Kaby Lake R
Configurable TDP-up	25 W
Processor frequency	1.6 GHz
Processor cache type	Smart Cache
Configurable TDP-down	10 W
Processor lithography	14 nm
Processor manufacturer	Intel
PCI Express slots version	3.0
Processor boost frequency	3.4 GHz
Processor operating modes	64-bit
PCI Express configurations	1x2+2x1, 1x4, 2x2, 4x1
Thermal Design Power (TDP)	15 W
Configurable TDP-up frequency	1.8 GHz
Configurable TDP-down frequency	0.8 GHz
Maximum number of PCI Express lanes	12
Operating system language	ENG, ESP, FRE
Battery capacity	56 Wh
Processor code	SR3LA
Processor ARK ID	124967
Processor package size	42 x 24 mm
Supported instruction sets	AVX 2.0, SSE4.1, SSE4.2
Intel Identity Protection Technology version	1.00
Intel Stable Image Platform Program (SIPP) version	0.00

Weight and Dimensions

Depth	241.9 mm
Width	339 mm
Height	21 mm
Weight	1780 g