Lenovo 8457, 8455, 8453, 8454 Specifications, Dimensions, Weight, Environment, Electrical input

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Specifications

This section lists the physical specifications for your computer.

Dimensions

Width: 331 mm (13.0 in.)

Height: 108 mm (4.3 in.)

Depth: 405 mm (15.9 in.)

Weight

Minimum configuration as shipped: 8.2 kg (18.0 lbs)

Maximum configuration: 8.3 kg (18.2 lbs)

Environment

Air temperature:

Operating at 0 - 3000 ft (914.4 m): 10° to 35°C (50° to 95°F)

Operating at 3000 ft - 7000 ft (2134 m): 10° to 32°C (50° to 89.6°F)

Non-operating: 10° to 43°C (50° to 110°F)

Humidity:

Operating: 10% to 80%

Non-operating: 10% to 90%

Transit: 8% to 90%

Maximum altitude: 7000 ft (2133.6 m)

Electrical input

Input voltage:

Low range:

Minimum: 100 V ac

Maximum: 127 V ac

Input frequency: 50/60 Hz

Voltage switch setting: 115 V ac

High range:

Minimum: 200 V ac

Maximum: 240V ac

Input frequency: 50/60 Hz

Voltage switch setting: 230 V ac

Input kilovolt-amperes (kVA) (approximate):

Minimum configuration as shipped: 0.09 kVA

Maximum configuration: 0.23 kVA

Chapter 1. Installing options 5

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Contents User Guide Lenovo 3000 J Series Page Lenovo 3000 J Series Page Contents Iv User Guide Conditions that require immediate action Important safety informationService General safety guidelinesPower cords and power adapters Extension cords and related devices Plugs and outletsBatteries Heat and product ventilation CD and DVD drive safetyAdditional safety information Lithium battery noticeTo connect To disconnect Laser compliance statement Modem safety informationPower supply statement Information resources OverviewXiv User Guide Features Installing optionsConnectivity Operating systems, preinstalled varies by model Available options Dimensions SpecificationsWeight EnvironmentSupported operating positions Tools requiredHandling static-sensitive devices Installing external options Locating connectors on the rear of your computer Obtaining device drivers Connector DescriptionRemoving the cover Locating components Accessing system board components Identifying parts on the system board User Guide Microprocessor and heat sink 10 Sata IDE connectors Fan connector 11 Clear CMOS/Recovery jumper Installing memory What to do next Installing PCI adaptersSecurity features Password protection Changing the batteryPadlock Erasing a lost or forgotten password clearing Cmos Replacing the cover and connecting the cables Starting the Setup Utility program Using the Setup UtilityViewing and changing settings Using passwordsAdministrator or Supervisor Password Selecting a startup device Exiting from the Setup Utility programSelecting a temporary startup device Changing the startup device sequenceUser Guide Updating flashing Bios from a diskette Appendix A. Updating system programsSystem program User Guide Appendix B. Cleaning the mouse Cleaning an optical mouseCleaning a mouse with a ball User Guide Basic AT commands Appendix C. Manual modem commandsSet Pulse dial as default Low speaker volumeSet Tone Dial as default Internal speaker on until carrier detectedExtended AT commands MNP/V.42/V.42bis/V.44 commands Fax Class 2 commands Fax Class 1 commandsVoice commands Appendix C. Manual modem commands User Guide Appendix D. Notices Trademarks Television output noticeIndex Page Page Part Number 41T3715