About this manual
This manual contains service and reference information for the IBM
«
NetVista
TM
Series computer type 2251/6830/6831.
This manual is divided into product service sections (by machine chassis) and a
related service section, as follows:
vThe product service sections include procedures for isolating problems to a FRU,
a Symptom-to-FRU Index, additional service information and an illustrated parts
catalog.
vThe related service section includes safety notices and safety information, and
problem determination tips.
Note:
This manual is intended for trained servicers who are familiar with IBM Personal
Computer products. Use this manual along with advanced diagnostic tests to troubleshoot
problems effectively.
Before servicing an IBM product, be sure to reviewthe “Safety notices (multi-lingual
translations)”on page103 and “Safety Information”on page128.

Important Safety Information

Be sure to read all caution and danger statements in this book before performing
any of the instructions.
Prenez connaissance de toutes les consignes de type Attention et Danger avant de
procéder aux opérations décrites par les instructions.
Lesen Sie alle Sicherheitshinweise, bevor Sie eine Anweisung ausführen.
Accertarsi di leggere tutti gli avvisi di attenzione e di pericolo prima di effettuare
qualsiasi operazione.
© Copyright IBM Corp. 2000 iii