Lenovo ThinkPad T490 User Manual (English)

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Display: Position the display to maintain a comfortable viewing distance of 510 mm to 760 mm (20 inches to

30 inches). Avoid glare or reflections on the display from overhead lighting or outside sources of light. Keep

the display screen clean and set the brightness to levels that enable you to see the screen clearly. Press the

brightness control keys to adjust display brightness.

Head position: Keep your head and neck in a comfortable and neutral (vertical, or upright) position.

Chair: Use a chair that gives you good back support and seat height adjustment. Use chair adjustments to

best suit your comfort posture.

Arm and hand position: If available, use chair arm rests or an area on your working surface to provide

weight support for your arms. Keep your forearms, wrists, and hands in a relaxed and neutral (horizontal)

position. Type with a soft touch without pounding the keys.

Leg position: Keep your thighs parallel to the floor and your feet flat on the floor or on a footrest.

What if you are traveling?

It might not be possible to observe the best ergonomic practices when you are using your computer while on

the move or in a casual setting. Regardless of the setting, try to observe as many of the tips as possible.

Sitting properly and using adequate lighting, for example, helps you maintain desirable levels of comfort and

performance. If your work area is not in an office setting, ensure to take special note of employing active

sitting and taking work breaks. Many product solutions are available to help you modify and expand your

computer to best suit your needs. You can find some of these options at

https://www.lenovo.com/accessories.

Explore your options for docking solutions and external products that provide the adjustability and features

that you want.

Questions about vision?

The visual display screens of notebook computers are designed to meet the highest standards. These visual

display screens provide you with clear, crisp images and large, bright displays that are easy to see, yet easy

on the eyes. Any concentrated and sustained visual activity can be tiring. If you have questions on eye

fatigue or visual discomfort, consult a vision-care specialist for advice.

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Lenovo ThinkPad T490 Specifications

General

Form factor	Clamshell
Product type	Ultrabook
Product color	Black
Market positioning	Business
LED backlight	Yes
Display diagonal	14 \
Bus type	OPI
Tjunction	100 °C
Processor cache	6 MB
Processor cores	4
Processor model	i5-8265U
System bus rate	4 GT/s
Processor family	Intel® Core™ i5
Processor socket	BGA 1528
Processor threads	8
Processor codename	Whiskey Lake
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	3.9 GHz
Processor operating modes	64-bit
PCI Express configurations	1x4, 2x2
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	16
Internal memory	8 GB
Memory clock speed	2400 MHz
Internal memory type	DDR4-SDRAM
Maximum internal memory	- GB
SSD capacity	The Solid State Drive's storage capacity in Gigabytes.
SSD interface	SATA III
Storage media	SSD
Total storage capacity	256 GB
Compatible memory cards	MicroSD (TransFlash)
Number of SSDs installed	1
On-board graphics card ID	0x3EA0
Discrete graphics card model	Not available
On-board graphics card family	Intel® UHD Graphics
Maximum on-board graphics card memory	32 GB
On-board graphics card OpenGL version	4.5
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
Number of built-in speakers	2
Antenna type	-
Wi-Fi standards	802.11a, Wi-Fi 5 (802.11ac), 802.11b, 802.11g, Wi-Fi 4 (802.11n)
Top Wi-Fi standard	Wi-Fi 5 (802.11ac)
Ethernet LAN data rates	100, 1000 Mbit/s
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.
Keyboard layout	QWERTY
Pointing device	Touchpad
Number of battery cells	3
AC adapter power	65 W
Processor ARK ID	149088
Processor package size	46x24 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