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Lenovo ThinkPad L540 User Manual

Lenovo ThinkPad L540
179 pages
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UserGuide
ThinkPadL440andL540

Table of Contents

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Lenovo ThinkPad L540 Specifications

General IconGeneral
Form factorClamshell
Product typeLaptop
Product colorBlack
Housing materialPlastic
Market positioningBusiness
Bus typeDMI2
Tjunction100 °C
Processor cache3 MB
Processor cores2
Processor modeli5-4330M
System bus rate5 GT/s
Processor familyIntel® Core™ i5
Processor seriesIntel Core i5-4300 Mobile series
Processor socket-
Processor threads4
Processor codenameHaswell
Processor frequency2.8 GHz
Processor cache typeSmart Cache
Processor lithography22 nm
Processor manufacturerIntel
Processor front side bus- MHz
PCI Express slots version3.0
Processor boost frequency3.5 GHz
Processor operating modes64-bit
ECC supported by processorNo
PCI Express configurations1x16, 2x8, 1x8+2x4
Thermal Design Power (TDP)37 W
Maximum number of PCI Express lanes16
Motherboard chipsetIntel® QM87
Memory slots2x SO-DIMM
Internal memory4 GB
Memory clock speed1600 MHz
Memory form factorSO-DIMM
Internal memory typeDDR3-SDRAM
Maximum internal memory16 GB
Memory layout (slots x size)1 x 4 GB
SSD capacityThe Solid State Drive's storage capacity in Gigabytes.
SSD interfaceSATA III
Storage mediaSSD
Optical drive typeDVD±RW
Card reader integratedYes
Total storage capacity128 GB
Compatible memory cardsMMC, SD, SDHC, SDXC
Number of SSDs installed1
HD typeNot supported
Display diagonal15.6 \
Display brightness220 cd/m²
Display resolution1366 x 768 pixels
Native aspect ratio16:9
Contrast ratio (typical)500:1
On-board graphics card ID0x416
Discrete graphics card modelNot available
On-board graphics card modelIntel® HD Graphics 4600
On-board graphics card familyIntel® HD Graphics
Maximum on-board graphics card memory1.74 GB
On-board graphics card base frequency400 MHz
On-board graphics card DirectX version11.1
On-board graphics card dynamic frequency (max)1250 MHz
Intel segment taggingHome Office, Small Business
Audio systemHD
Speaker power2 W
Front camera resolution1280 x 720 pixels
Wi-Fi standards802.11a, Wi-Fi 5 (802.11ac), 802.11b, 802.11g, Wi-Fi 4 (802.11n)
Bluetooth version4.0
Ethernet LAN data rates10, 100, 1000 Mbit/s
Charging port typeDC-in jack
USB 2.0 ports quantity3
eSATA/USB 2.0 ports quantity0
Recovery operating systemWindows 8 Pro
Operating system installedWindows 7 Professional
Processor ARK ID76750
Intel TSX-NI version0.00
Processor package size37.5 x 37.5 x 4.7 mm
Supported instruction setsAVX 2.0
Intel Identity Protection Technology version1.00
Battery capacity56 Wh
Battery life (max)11 h
Number of battery cells6
AC adapter power65 W
AC adapter frequency50 - 60 Hz
AC adapter input voltage100 - 240 V
Password protection typeHDD, Power on, Supervisor
Operating altitude0 - 2438 m
Storage temperature (T-T)5 - 43 °C
Operating temperature (T-T)5 - 35 °C
Storage relative humidity (H-H)5 - 95 %
Operating relative humidity (H-H)8 - 95 %
Sustainability certificatesRoHS, EPEAT Gold, ENERGY STAR
Weight and Dimensions IconWeight and Dimensions
Depth247 mm
Width377 mm
Weight2540 g
Height (rear)34.05 mm
Height (front)28.8 mm

Summary

Read this first

Safety Precautions

Essential safety tips to prevent injury and computer damage from heat, liquids, and cables.

Handling and Transporting Your Computer

Guidelines for protecting your computer and data when moving, handling, and carrying it.

Important Safety Information

General safety advice for using electronic devices, including warnings about power adapters and batteries.

Chapter 1. Product Overview

Chapter 2. Using Your Computer

Power Management

Guides on checking battery status, using the AC adapter, charging, and maximizing battery life.

Connecting to Networks

Information on Ethernet and wireless LAN/WAN connections, including troubleshooting tips.

Chapter 3. You and Your Computer

Chapter 4. Security

Password Management

Instructions for setting, changing, and removing power-on, supervisor, and hard disk passwords.

Hard Disk and System Security

Covers hard disk security, using the security chip, and Windows BitLocker Drive Encryption.

Fingerprint Reader Security

Details on enrolling fingerprints, swiping, and maintaining the fingerprint reader for secure access.

Chapter 5. Recovery Overview

Windows 7 Recovery Options

Information on recovery solutions for Windows 7, including backup software and creating recovery media.

Chapter 6. Replacing Devices

Component Replacement Procedures

Step-by-step instructions for replacing the battery pack, SIM card, hard drive, memory, wireless cards, Ultrabay, keyboard, and backup battery.

Chapter 7. Enhancing Your Computer

Chapter 8. Advanced Configuration

Chapter 9. Preventing Problems

General Maintenance Tips

Advice on preventing issues through regular checks, disk maintenance, software updates, and backups.

Chapter 10. Troubleshooting Computer Problems

Diagnosing and Basic Troubleshooting

Using Lenovo Solution Center for diagnostics and initial troubleshooting steps for unresponsive computers.

Common Error Messages and Beep Codes

Lists specific error messages and beep codes, with solutions for hardware or system configuration issues.

Chapter 11. Getting Support

Contacting Lenovo and Downloading Updates

How to prepare for support calls, download software updates, and find contact information.

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