IBM ThinkPad T40 series Hardware Maintenance Manual

– Use the round ground prong of the ac plug on
ac-operated computers.
Grounding requirements
Electrical grounding of the computer is required for
operator safety and correct system function. Proper
grounding of the electrical outlet can be verified by a
certified electrician.
Safety information
Introduction 21

IBM ThinkPad T40 series Specifications

General

Processor	Intel Pentium M (1.3 GHz - 1.7 GHz)
Chipset	Intel 855PM
Hard Drive Interface	ATA-100
Modem	56K V.92
Release Year	2003
RAM	256 MB - 2 GB (DDR SDRAM)
Storage	30 GB - 80 GB (HDD)
Display	14.1"
Graphics	ATI Mobility Radeon 7500 or 9000
Optical Drive	DVD-ROM/CD-RW Combo
Operating System	Windows XP Professional
Weight	2.2 kg (4.9 lbs)
Battery	Li-Ion
Wireless	Intel PRO/Wireless 2100
Ethernet	10/100 Mbps
Ports	2 x USB 2.0, VGA, RJ-11, RJ-45, Audio In/Out
Dimensions	311 mm x 255 mm x 26.6 mm (12.24" x 10.04" x 1.05")