About this manual – Lenovo M4400s notebook User Manual

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About this manual

This manual provides service and reference information for the following Lenovo

products.

Machine

Machine Types (MT)

Lenovo M4400s

80B9, 20282

This manual provides information about the computer features, specifications, component locations,
hardware replacement procedures, and parts listing. This manual also includes safety guidelines and
important notices for servicing the computer.

Important:

• This manual is intended only for trained service technicians who are familiar with Lenovo products. Use

this manual to troubleshoot problems effectively.

• Before servicing a Lenovo product, ensure that you read all the information in Chapter 1 “Safety

information” on page 1 and Chapter 3 “Important service information” on page 25.

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