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Lenovo B490 User Manual

Lenovo B490
84 pages
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UserGuide
LenovoB490,B590,B4301,B4302,B4303,B4305,B4306,B4307,
B4308,B4309,B4310,B4311,B4312,B4315,B4316,B4317,B4318,
B4319,B4320,B4321,B4322,B4323,B4325,B4326,B4327,B4328,
B4329,B4330,B4331,B4332,B4333,B4335,B4336,B4337,B4338,
B4339,B4360,B4361,B4362,B4363,B4365,B4366,B4367,B4368,
B4369,B4370,B4371,B4372,B4375,B4376,B4377,andB4378

Table of Contents

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Lenovo B490 Specifications

General IconGeneral
Bus typeDMI
Processor cache3 MB
Processor cores2
Processor modeli3-2348M
System bus rate5 GT/s
Processor familyIntel® Core™ i3
Processor seriesIntel Core i3-2300 Mobile Series
Processor threads4
Processor codenameSandy Bridge
Processor frequency2.3 GHz
Processor cache typeSmart Cache
Processor lithography32 nm
Processor manufacturerIntel
PCI Express slots version2.0
Processor operating modes64-bit
ECC supported by processorNo
PCI Express configurations1x16, 1x8+2x4, 2x8
Thermal Design Power (TDP)35 W
Maximum number of PCI Express lanes16
Motherboard chipsetIntel HM77 Express
Internal memory2 GB
Internal memory typeDDR3-SDRAM
Maximum internal memory- GB
Memory layout (slots x size)1 x 2 GB
HDD interfaceSATA
Storage mediaHDD
Optical drive typeDVD Super Multi
Card reader integratedYes
Total storage capacity500 GB
Compatible memory cardsMMC, SD, SDHC, SDXC
Number of HDDs installed1
Display diagonal14 \
Display resolution1366 x 768 pixels
Native aspect ratio16:9
Discrete graphics card modelNVIDIA® GeForce® GT 610M
On-board graphics card modelIntel® HD Graphics 3000
On-board graphics card familyIntel® HD Graphics
On-board graphics card base frequency650 MHz
On-board graphics card dynamic frequency (max)1150 MHz
LightScribe-
Audio systemHD
Wi-Fi standards802.11b, 802.11g, Wi-Fi 4 (802.11n)
Bluetooth version4.0
Cabling technology10/100/1000Base-T(X)
Ethernet LAN data rates10, 100, 1000 Mbit/s
Charging port typeDC-in jack
Headphone connectivity3.5 mm
USB 2.0 ports quantityUSB 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.
eSATA/USB 2.0 ports quantity0
Pointing deviceTouchpad
Operating system installedFreeDOS
Form factorClamshell
Product typeLaptop
Product colorBlack
Processor ARK ID74542
Supported instruction setsAVX
Battery life (max)6.5 h
Number of battery cells6
Cable lock slot typeKensington
Cables includedAC
Sustainability certificatesENERGY STAR
AC adapter frequency50 - 60 Hz
AC adapter input voltage100 - 240 V
Weight and Dimensions IconWeight and Dimensions
Depth234.6 mm
Width340 mm
Height33.1 mm
Weight2200 g

Summary

Read this first

Important safety information

Provides crucial safety guidelines for using your Lenovo computer.

Conditions requiring immediate action

Details conditions that may indicate product damage and require immediate attention.

Safety guidelines

Outlines precautions to reduce the risk of injury and property damage.

Chapter 1. Getting to know your computer

Chapter 2. Using your computer

Connecting to power

Instructions on connecting the computer to an electrical outlet for power and charging.

AC power adapter and battery usage

Information on using the AC adapter, checking battery status, and charging.

Recovery button usage

Explains how to use the dedicated recovery button for system recovery.

Chapter 3. Connecting to the network

Wired connection

Guides on establishing a reliable internet connection using a wired network.

Chapter 4. You and your computer

Chapter 5. Security

Chapter 6. Recovery overview

Windows 7 recovery program

Details on using the OneKey Recovery Pro program for Windows 7.

Windows 8 recovery program

Explains the built-in Windows recovery features for Windows 8.

Chapter 7. Replacing devices

Replacing the battery

Step-by-step guide for replacing the main computer battery.

Replacing the backup battery

Instructions for replacing the internal backup battery.

Replacing the hard disk drive

Procedure for replacing the computer's hard disk drive.

Replacing a memory module

Guide on how to install or replace a memory module.

Chapter 8. Preventing problems

Computer care and maintenance

Guidelines on how to properly care for and maintain the computer.

Chapter 9. Troubleshooting computer problems

Battery and power issues

Troubleshooting steps for common battery and power-related problems.

AC power adapter and startup problems

Resolving issues with the AC power adapter and computer startup failures.

Sleep mode and screen issues

Troubleshooting computer sleep mode entries and blank or distorted screens.

Drive and storage troubleshooting

Diagnosing problems related to hard disk drives and optical drives.

System operation and sound problems

Addressing issues like system unresponsiveness, sound problems, and device failures.

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