IBM ThinkPad T40 Hardware Maintenance Manual

This document is the hardware maintenance manual for IBM ThinkPad T40 and its accompanying ThinkPad Dock II. It describes the features and characteristics of the products.


IBM ThinkPad T40 Hardware Maintenance Manual - cover page
Brand
IBM
Category
Laptops
Document type
Service Manual
Language
English
Pages
166
File format
PDF
File size
2.7 MB
Published
08 May, 2012
Updated
28 September, 2023
MD5 checksum
2C6BF7BFA1967E242896B10C0CCEC7B3

About this manual

The IBM ThinkPad T40 Hardware Maintenance Manual provides detailed service information for the T40 notebook and its optional ThinkPad Dock II. It includes safety guidelines, FRU replacement strategies, diagnostic procedures, and a complete parts list for trained service personnel.

The manual also contains technical specifications such as processor options, memory configurations, storage capacities, and graphics details, along with safety notices in multiple languages and instructions for handling batteries and other components safely.

What's inside

  • Introduction
  • Important service information
  • Safety notices
  • Strategy for replacing FRUs
  • Product overview
  • Specifications
  • Status indicators
  • FRU tests
  • Fn key combinations
  • Symptom-to-FRU index

Specifications

ProcessorIntel® Pentium®M 1.3 GHz, L2 512 KB cache (up to 1.6 GHz)
Bus architecture400 MHz Processor System Bus (PSB)
Standard memory256 MB DDR SDRAM SO‑DIMM (PC2100)
Maximum memory2 GB DDR SDRAM SO‑DIMM (PC2100)
Hard‑disk drive20 GB, 4200 rpm, 2.5‑inch IDE (optional 40 GB/80 GB)
Graphic memory16 MB DDR SDRAM (ATI M6‑C16h)

Frequently asked questions

What safety check should be performed before powering on the computer after a FRU replacement?

Verify that all screws, springs, and small parts are correctly installed by shaking the computer and listening for rattling sounds.

What precautions are required when handling the standby battery in a ThinkPad T40?

Do not disassemble, recharge, expose to fire or water, or short‑circuit the battery; dispose of it according to local regulations and use only the listed replacement type.

What is the recommended procedure before replacing a hard‑disk drive?

Attempt a low‑level format of the drive before deciding to replace it.

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