3Com 3C900B TPC and 3C905C-TXM 10/100 Ethernet Adapter Configuration and Diagnostic Utility for multiple OS, version 5.21, A01 Windows based Customer Diagnostics for 3Com 3C90x family of PCI Ethernet Adapters. 3Com EtherLink 10/100 PCI NIC (3C905-TX) Free Driver Download for Windows NT4, NT3.51 - 3c905b-tx.zip (70957). World's most popular driver download site.

3Com EtherLink 10/100 PCI NIC - network adapter. Part Number: 3C905C-TX-M. Jul 14, 2016  For Win7 64bit you have to install manually a compatible driver within in the driver collection of Win7: Choose network-adapter >>> realtek semiconductor (the 2nd) >>> HP EN 1207D-Tx PCI 10/100 This driver is working well. Similar Suggested Software Realtek High Definition Audio Codec (Windows Vista / Windows 7 / Windows 8 32-bit) Update your onboard HD sound from Realtek to the latest driver release. Software is delivered as “Commercial Computer Software” as defined in DFARS 252.227-7014 (June 1995) or as a “commercial item” as defined in FAR 2.101(a) and as such is provided with only such rights as are provided in 3Com’s standard commercial license for the Software. View full 3Com EtherLink 10/100 PCI NIC specs on CNET.

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After you upgrade your computer to Windows 10, if your 3Com Network / Ethernet Drivers are not working, you can fix the problem by updating the drivers. It is possible that your Network / Ethernet driver is not compatible with the newer version of Windows.

How to Update Device Drivers

There are two ways to update drivers.

Option 1 (Recommended): Update drivers automatically - Novice computer users can update drivers using trusted software in just a few mouse clicks. Automatic driver updates are fast, efficient and elimate all the guesswork. Your old drivers can even be backed up and restored in case any problems occur.

OR

Option 2: Update drivers manually - Find the correct driver for your Network / Ethernet and operating system, then install it by following the step by step instructions below. You’ll need some computer skills to use this method.

Option 1: Update drivers automatically

3com Network Director

The Driver Update Utility for 3Com devices is intelligent software which automatically recognizes your computer’s operating system and Network / Ethernet model and finds the most up-to-date drivers for it. There is no risk of installing the wrong driver. The Driver Update Utility downloads and installs your drivers quickly and easily.

3com Network Adapter

You can scan for driver updates automatically with the FREE version of the Driver Update Utility for 3Com, and complete all necessary driver updates using the premium version.

Free Network Adapter Software

Tech Tip: The Driver Update Utility for 3Com will back up your current drivers for you. If you encounter any problems while updating your drivers, you can use this feature to restore your previous drivers and configuration settings.

1. Download the Driver Update Utility for 3Com.

2. Double-click on the program to run it. It will then scan your computer and identify any problem drivers. You will see a results page similar to the one below:
   

3. Click the Update Driver button next to your driver. The correct version will be downloaded and installed automatically. Or, you can click the Update Drivers button at the bottom to automatically download and install the correct version of all the drivers that are missing or out-of-date on your system.

Option 2: Update drivers manually

To find the latest driver, including Windows 10 drivers, choose from our list of most popular 3Com Network / Ethernet downloads or search our driver archive for the driver that fits your specific Network / Ethernet model and your PC’s operating system.

If you cannot find the right driver for your device, you can request the driver. We will find it for you. Or, try the automatic option instead.

Tech Tip: If you are having trouble finding the right driver update, use the 3Com Network / Ethernet Driver Update Utility. It is software which finds, downloads and istalls the correct driver for you - automatically.

After downloading your driver update, you will need to install it. Driver updates come in a variety of file formats with different file extensions. For example, you may have downloaded an EXE, INF, ZIP, or SYS file. Each file type has a slighty different installation procedure to follow. Visit our Driver Support Page to watch helpful step-by-step videos on how to install drivers based on their file extension.

How to Install Drivers

After you have found the right driver, follow these simple instructions to install it.

1. Power off your device.
2. Disconnect the device from your computer.
3. Reconnect the device and power it on.
4. Double click the driver download to extract it.
5. If a language option is given, select your language.
6. Follow the directions on the installation program screen.
7. Reboot your computer.