Lenovo 4157 - ThinkStation S20 - 2 GB RAM, Hardware Maintenance Manual

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Chapter 1. About this manual
This manual contains service and reference information for ThinkStation™ computers listed on the cover. It
is intended only for trained servicers who are familiar with Lenovo® computer products.
Before servicing a Lenovo product, be sure to read the Safety Information. See Chapter 2 “Safety
information” on page 3.
The Symptom-to-FRU Index and Additional Service Information chapters are not specific to any machine
type and are applicable to all ThinkStation computers.
This manual includes a complete FRU part number listing for each machine type and model listed on the
cover. If you have internet access, FRU part numbers are also available at:
http:/www.lenovo.com/support
Important Safety Information
Be sure to read all caution and danger statements in this book before performing any of the instructions.
Veuillez lire toutes les consignes de type DANGER et ATTENTION du présent document avant d'exécuter
les instructions.
Lesen Sie unbedingt alle Hinweise vom Typ "ACHTUNG" oder "VORSICHT" in dieser Dokumentation, bevor
Sie irgendwelche Vorgänge durchführen
Leggere le istruzioni introdotte da ATTENZIONE e PERICOLO presenti nel manuale prima di eseguire una
qualsiasi delle istruzioni
Certifique-se de ler todas as instruções de cuidado e perigo neste manual antes de executar qualquer
uma das instruções
Es importante que lea todas las declaraciones de precaución y de peligro de este manual antes de seguir
las instrucciones.
Important information about replacing RoHS compliant FRUs
RoHS, The Restriction of Hazardous Substances in Electrical and Electronic Equipment Directive
(2002/95/EC) is a European Union legal requirement affecting the global electronics industry. RoHS
requirements must be implemented on Lenovo products placed on the market and sold in the
European Union after June 2006. Products on the market before June 2006 are not required to
have RoHS compliant parts. If the parts are not compliant originally, replacement parts can also
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