Broadcom 3Com 3C940 Gigabit LOM Driver Download
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 "win_xp_2k3_32-8.48e.zip" has been downloaded 45,641 times with a user rating of 5 out of 5 stars, based on 264 reviews. Our users report success installing this driver update on PCs running Windows XP. The total disk space used for this update is 86.8 KB.
Supported Models
Broadcom 440x 10/100 integrated controller
3Com 10/100/1000 PCI
3Com 3C1000 Gigabit NIC
3Com 3C940 Gigabit LOM
3Com 3C996 10/100/1000 Server NIC
3Com 3C996 Gigabit Fiber-SX Server NIC
3Com 3C996B Gigabit Server NIC
3Com Dual Port 10/100/1000 PCI-X Server NIC
Manufacturers
Supported Operating Systems
Windows 2003, Windows XP, Windows 2000, Windows NT4
File Name
Versions
8.48.0.0 (2005-10-31) via .inf
Uploaded By
Sergiu (DG Member) on 23-Dec-2005
Most Helpful Reviews
(1 day after download)
Already tried it? Give your review.
See all Broadcom 3Com 3C940 Gigabit LOM ratings and reviews
Device Hardware IDs
PCI\VEN_14E4&DEV_1600&SUBSYS_01C21028&REV_02
PCI\VEN_14E4&DEV_1600&SUBSYS_01C21028&REV_02\4&378EDFA4&0&00E2
PCI\VEN_14E4&DEV_1600&SUBSYS_01C21028&REV_02\4&B08FCB8&0&00E2
PCI\VEN_14E4&DEV_1600&SUBSYS_01C81028&REV_02
PCI\VEN_14E4&DEV_1600&SUBSYS_01C81028&REV_02\4&378EDFA4&0&00E2
PCI\VEN_14E4&DEV_1600&SUBSYS_02011028&REV_02
PCI\VEN_14E4&DEV_1600&SUBSYS_02011028&REV_02\4&378EDFA4&0&00E2
PCI\VEN_14E4&DEV_1600&SUBSYS_160014E4&REV_00
PCI\VEN_14E4&DEV_1600&SUBSYS_3010103C
PCI\VEN_14E4&DEV_1644&SUBSYS_000214E4
PCI\VEN_14E4&DEV_1644&SUBSYS_000314E4
Compatible IDs
Related Driver Updates
Driver Contents File List
The following files are found inside the driver download file.
| Name | Size | Date |
|---|---|---|
| win_xp_2k3_32/b57win32.cat | 27.7 KB | 29 Nov 2005 |
| win_xp_2k3_32/b57win32.inf | 109.7 KB | 29 Nov 2005 |
| win_xp_2k3_32/b57xp32.sys | 142.7 KB | 29 Nov 2005 |
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
Locate the device and model that is having the issue and double-click on it to open the Properties dialog box.
Select the Driver tab.
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.