Broadcom 3Com 3C940 Gigabit LOM Driver Download

Broadcom Drivers

The 3Com 3C940 Gigabit LOM is a network device manufactured by Broadcom. Issues like weak Wi-Fi signal, slow DNS lookup, duplicate IP addresses, slow network and excessive CPU usage can be solved by updating this driver. This version of "R121023.EXE" has been downloaded 1,465 times with a user rating of 5 out of 5 stars, based on 12 reviews. Visitors have successfully installed this driver on PCs running Windows XP. The total disk space used for this update is 4.5 MB.

12 Ratings (see all reviews)

Supported Models

NetXtreme 57xx Gigabit Controller

3Com 10/100/1000 PCI

3Com 3C1000 Gigabit NIC

3Com 3C940 Gigabit LOM

3Com 3C996 Gigabit Fiber-SX Server NIC

3Com 3C996B Gigabit Server NIC

3Com Dual Port 10/100/1000 PCI-X Server NIC

3Com Dual Port 1000-SX PCI-X Server NIC



Supported Operating Systems

Windows Vista, Windows Vista (64 bit), Windows 2003, Windows XP, Windows XP (64 bit), Windows 2000, Windows NT4

File Name

Versions (2006-03-09) via .inf

Additional Notes

For windows xp 64bits

Uploaded By

RAMS (DG Member) on 1-Jun-2009

Ratings & Reviews

See all Broadcom 3Com 3C940 Gigabit LOM ratings and reviews

Device Hardware IDs

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
1028.mst 30.2 KB 19 Mar 2006
1030.mst 39.9 KB 19 Mar 2006
1031.mst 45.6 KB 19 Mar 2006
1033.mst 3.6 KB 19 Mar 2006
1034.mst 43.5 KB 19 Mar 2006
1035.mst 40.4 KB 19 Mar 2006
1036.mst 45.1 KB 19 Mar 2006
1040.mst 45.1 KB 19 Mar 2006
1041.mst 43.5 KB 19 Mar 2006
1042.mst 38.9 KB 19 Mar 2006
1043.mst 44.5 KB 19 Mar 2006
1044.mst 40.4 KB 19 Mar 2006
1046.mst 42.5 KB 19 Mar 2006
1053.mst 40.4 KB 19 Mar 2006
1054.mst 38.9 KB 19 Mar 2006
2052.mst 31.2 KB 19 Mar 2006
BDrvInst.msi 977.8 KB 19 Mar 2006
Silent.txt 939 bytes 19 Mar 2006
Version.txt 408 bytes 28 Mar 2006
WinXP/ 26.0 KB 19 Mar 2006
WinXP/b57amd64.inf 57.4 KB 19 Mar 2006
WinXP/b57amd64.sys 241.2 KB 19 Mar 2006 110.3 KB 19 Mar 2006 26.0 KB 15 Mar 2006 57.4 KB 9 Mar 2006 241.2 KB 9 Mar 2006 731 bytes 6 Apr 2005
setup.exe 3.8 MB 19 Mar 2006

How to Update 3Com 3C940 Gigabit LOM Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the 3Com 3C940 Gigabit LOM driver, click the green download button above. After you complete your download, move on to Step 2.

If the driver listed is not the right version or operating system, search our driver archive for the correct version. Enter Broadcom 3Com 3C940 Gigabit LOM into the search box above and then submit. In the results, choose the best match for your PC and operating system.

Tech Tip: If you are having trouble deciding which is the right driver, try the Broadcom Driver Update Utility. It is a software utility which automatically finds and downloads the right driver.

To find the newest driver, you may need to visit the Broadcom website. Most major device manufacturers update their drivers regularly.

Step 2 - Install Your Driver

Once you have downloaded your new driver, you'll need to install it. In Windows, use a built-in utility called Device Manager, which allows you to see all of the devices recognized by your system, and the drivers associated with them.

How to Open Device Manager

  • In Windows 11, Windows 10 & Windows 8.1, right-click the Start menu and select Device Manager

  • In Windows 8, swipe up from the bottom, or right-click anywhere on the desktop and choose "All Apps" -> swipe or scroll right and choose "Control Panel" (under Windows System section) -> Hardware and Sound -> Device Manager

  • In Windows 7, click Start -> Control Panel -> Hardware and Sound -> Device Manager

  • In Windows Vista, click Start -> Control Panel -> System and Maintenance -> Device Manager

  • In Windows XP, click Start -> Control Panel -> Performance and Maintenance -> System -> Hardware tab -> Device Manager button

How to Install a driver from Device Manager

  1. Locate the device and model that is having the issue and double-click on it to open the Properties dialog box.

  2. Select the Driver tab.

  3. Click the Update Driver button and follow the instructions.

In most cases, you will need to reboot your computer in order for the driver update to take effect.

Tech Tip: Driver downloads and 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.

For more help, visit our Driver Support Page for step-by-step videos on how to install drivers for every file type.

This website is not affiliated with Broadcom. All company names/logos are properties of their owners.
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