This is a user manual that introduces the features and characteristics of IBM 6339, 6341, 6342, 6346, 6347 and 6348 desktop and 2256 and 2257 micro tower models.
This guide provides safety instructions for handling electrical, telephone, and laser components, including battery‑handling warnings and grounding procedures. It also details the identification of computer models, physical characteristics, and required tools for service work.
The manual describes step‑by‑step installation of external accessories, internal components for various form‑factors (small desk, desktop, micro‑tower), memory module installation, system upgrades, and includes several appendices covering battery replacement, firmware updates, and trademark information.
| Battery part number | 33F8354 |
|---|---|
| Document part number | 25P6011 |
| Supported memory modules | DIMM |
| Laser drive classification | Class 1 laser device |
Disconnect power from all devices, ground all cables, avoid moisture, and follow the listed wiring procedures before opening the case.
Only the IBM‑specified lithium battery with part number 33F8354 may be used, and it must not be exposed to water or temperatures above 100 °C.
The computers use DIMM memory modules, which are installed according to the instructions in the manual.
The CD/DVD drive is classified as a Class 1 laser device, meeting U.S. DHHS and IEC 825 standards.