IBM Personal Computer 6266/6270/6276/6279/6280/6286 User Manual

About this manual

This guide provides safety instructions and installation steps for the IBM Personal Computer series, including proper grounding with the three‑pin power cable and precautions against electric shock. It also explains how to connect peripherals such as modems, CD‑ROM/DVD‑ROM drives, and keyboards.

The manual details the BIOS configuration utility, hardware upgrades like memory expansion, battery replacement, and CMOS settings. Troubleshooting procedures, error codes, and modem command references are included, along with appendices containing specification tables and terminology. This manual is written in Italian.

What's inside

• Installation
• Safety Information
• BIOS Configuration Utility
• Hardware Installation and Removal
• Memory Upgrade
• Troubleshooting
• Modem Configuration
• Appendices – Specifications

Specifications

Frequently asked questions

How should the IBM PC be connected to a power outlet?

Use the supplied power cable with a three‑pin grounded plug and connect it to a properly grounded outlet.

How can I reset the BIOS settings to their defaults?

Open the configuration utility and select the option to load default settings.

How do I replace the system battery?

Follow the procedure described for replacing the system battery in the maintenance section.