Installation Guide for 10/100 3Com 3C905B-TX

Brand: HP

Category: Networking

Document Type: Installation Guide

Language: EN

Available Languages: EN , ES

Uploaded: Nov. 21, 2025, 6:15 p.m.

Warranty Information

One-year limited hardware warranty from the date of purchase.

This guide details the installation of the HP 10/100 3Com 3C905B-TX Network Interface Card. It covers identifying components, installing the card into a PC, connecting to the network, configuring BIOS settings, and installing drivers for Windows 95 and Windows NT 4.0. It also includes troubleshooting steps and specifications.

Troubleshooting and error codes

Problem	Potential Causes and Solutions
The 3C905B-TX Card Does Not Work	Check card installation (page 7). Verify LAN-specific fields in HP PC Setup are correct (page 9). Follow software installation steps (page 10). Check network cables for secure connections and damage. Verify 10 LNK or 100 LNK green LED is on. For NT 4.0 systems, re-install Service Pack.
The PC Cannot Be Started or Woken up from the Network	Check WOL connector cable connection to NIC and system board. If PC was powered off, power on, boot OS, then shut down for Remote Power On (RPO) to work. Verify LAN-specific fields in HP PC Setup are correct (page 9). RPO is supported under Windows 95 and Windows NT 4.0 only.