Dell Precision Mobile WorkStation M20 Driver Download (Official)

9 Ratings

Supported Models

Dell Precision Mobile WorkStation M20 Driver

3Com 10/100/1000 PCI Driver

3Com 3C1000 Gigabit NIC Driver

3Com 3C940 Gigabit LOM Driver

3Com 3C996 10/100/1000 Server NIC Driver

3Com 3C996 Gigabit Fiber-SX Server NIC Driver

3Com 3C996B Gigabit Server NIC Driver




Supported Operating Systems

Windows XP, Windows 2000

File Name


Win XP v7.86/Win 2K v7.86, A01 (1-Dec-2004) (2004-08-23) via .inf

Uploader Notes

Network: Broadcom 570x Gigabit Integrated Controller, 57XX Gigabit Integrated Controller, Driver, Windows 2000, Windows XP, Multi Language, Multi System, v.Win XP v7.86/Win 2K v7.86, A01

Broadcom NDIS driver for the Broadcom 5751 PCI-E LOM.

Uploaded By

Jayakumar (DG Staff Member) on 24-Dec-2007

Device Hardware IDs

Compatible IDs






Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
BInstDll.dll 77.8 KB 3 Sep 2004
DOS/NDIS2/v7.65/B57.dos 44.8 KB 3 Sep 2004
DOS/NDIS2/v7.65/PROTOCOL.INI 899 bytes 3 Sep 2004
DOS/NDIS2/v7.65/oemsetup.inf 210 bytes 3 Sep 2004
DOS/NDIS2/v7.65/readme.txt 3.6 KB 3 Sep 2004
DOS/ODI/v7.69/B57.INS 236 bytes 3 Sep 2004
DOS/ODI/v7.69/NET.CFG 319 bytes 3 Sep 2004
DOS/ODI/v7.69/ODIrel1.txt 40.4 KB 3 Sep 2004
DOS/ODI/v7.69/ 51.9 KB 3 Sep 2004
DOS/ODI/v7.69/readme.txt 3.6 KB 3 Sep 2004
Version.txt 612 bytes 28 Sep 2005
Win2K/v7.86/b57w2k.sys 122.6 KB 3 Sep 2004
Win2K/v7.86/ 19.7 KB 3 Sep 2004
Win2K/v7.86/b57win32.inf 103.4 KB 3 Sep 2004
WinXP/v7.86/ 19.7 KB 3 Sep 2004
WinXP/v7.86/b57win32.inf 103.4 KB 3 Sep 2004
WinXP/v7.86/b57xp32.sys 121.5 KB 3 Sep 2004
readme.txt 1.7 KB 3 Sep 2004
setup.exe 14.2 MB 3 Sep 2004

How to Update Dell Precision Mobile WorkStation M20 Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the Dell Precision Mobile WorkStation M20 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 Dell Precision Mobile WorkStation M20 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 Dell 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 Dell 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.

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