IBM Type 6339/6341/6342/6346/6347/6348/2256/2257 User Manual

About this manual

This IBM user guide provides safety information, recycling instructions, and an overview of the various hardware models (small desk, desk, and extra‑small floor). It details how to identify the machine, install external accessories, and configure internal components such as memory, DIMM modules, and internal stations.

The manual also explains how to update the system configuration, replace the lithium battery, reset a forgotten password, and perform system software updates. Appendices cover battery replacement, system address tables, IRQ/DMA assignments, and trademark notes.

What's inside

• Safety Information
• Overview of Models
• Installing External Accessories
• Installing Accessories – Small Desk Model
• Installing Accessories – Desk Model
• Installing Accessories – Small Floor Model
• Updating Configuration
• Battery Replacement
• System Software Update
• Appendix: Notes and Trademarks

Specifications

Frequently asked questions

How should I safely connect and disconnect cables?

Turn off power, then connect or disconnect cables as shown in the safety tables.

What battery type is required for replacement?

Use a battery with part number 33F8354 or an equivalent IBM‑approved battery.

How can I clear a forgotten password?

Reset the CMOS (clear the password) by following the “Slette et passord som du har mistet eller glemt” procedure.

How should the machine be recycled?

Return the equipment to an IBM dealer, a recycling station, or a special‑waste collection point.