3Com EtherLink III ISA (3C509-TPO) in EISA mode Driver Download
The EtherLink III ISA (3C509-TPO) in EISA mode is a network device manufactured by 3Com. 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 "3c509.zip" is rated (5 out of 5 stars) based on 9,322 downloads and 77 reviews. Visitors have successfully installed this driver on PCs running Windows XP. The total disk space used for this update is 859.1 KB.
Supported Models
3C509 - series
3Com EtherLink III EISA (3C579)
3Com EtherLink III EISA (3C579-TP)
3Com EtherLink III ISA (3C509) in EISA mode
3Com EtherLink III ISA (3C509-Combo) in EISA mode
3Com EtherLink III ISA (3C509-TP) in EISA mode
3Com EtherLink III ISA (3C509-TPC) in EISA mode
3Com EtherLink III ISA (3C509-TPO) in EISA mode
Manufacturers
Supported Operating Systems
Windows 2003, Windows XP, Windows 2000, Windows NT4, Windows NT3.51, Windows ME, Windows 98SE, Windows 98, Windows 95, Windows 3.1
File Name
Uploaded By
Çoop (DG Member) on 22-Aug-2000
Ratings & Reviews
See all 3Com EtherLink III ISA (3C509-TPO) in EISA mode ratings and reviews
Related Driver Updates
Driver Contents File List
The following files are found inside the driver download file.
| Name | Size | Date |
|---|---|---|
| NWCLIENT/NET.CFG | 1.8 KB | 22 Aug 1994 |
| NWCLIENT/3C5X9.SYS | 31.3 KB | 3 Apr 1996 |
| NWCLIENT/3C5X9.INS | 891 bytes | 13 Dec 1994 |
| NWCLIENT/3C5X9.COM | 43.0 KB | 2 Apr 1997 |
| @627D.ADF | 5.5 KB | 18 Nov 1992 |
| 3C5X9CFG.EXE | 233.9 KB | 21 Aug 1996 |
| !TCM5093.CFG | 3.4 KB | 3 May 1993 |
| INSTALL.EXE | 10.1 KB | 4 Sep 1996 |
| NWSERVER/3C5X9.LDI | 8.6 KB | 21 May 1997 |
| NWSERVER/3C5X9.INF | 17.7 KB | 21 Mar 1997 |
| NWSERVER/3C5X9.LAN | 17.0 KB | 4 Apr 1997 |
| !TCM5091.CFG | 3.4 KB | 3 May 1993 |
| AUTOLINK.EXE | 19.8 KB | 19 Jul 1996 |
| WIN95/ELNK3NDI.DL_ | 3.3 KB | 7 May 1997 |
| AUTOLINK/AUTOLINK.CFG | 7.1 KB | 28 May 1996 |
| AUTOLINK/INST.EXE | 23.6 KB | 29 Apr 1997 |
| AUTOLINK/AUTOLINK.SAC | 116.5 KB | 27 Mar 1997 |
| !TCM5098.CFG | 4.9 KB | 16 Aug 1996 |
| NDIS2/OS2/ELNK3.OS2 | 25.2 KB | 6 Mar 1997 |
| NDIS2/OS2/PROTOCOL.INI | 974 bytes | 14 Mar 1995 |
| NDIS2/OS2/EL3IBMO2.NIF | 1.0 KB | 18 Jul 1994 |
| NDIS2/DOS/EL3IBMDS.NIF | 1.0 KB | 18 Jul 1994 |
| NDIS2/DOS/PROTOCOL.INI | 981 bytes | 14 Mar 1995 |
| NDIS2/DOS/ELNK3.DOS | 23.6 KB | 6 Mar 1997 |
| NDIS2/DOS/OEMSETUP.INF | 744 bytes | 14 Sep 1995 |
| 3C5X9CFG.PIF | 967 bytes | 18 Jul 1996 |
| WIN32/PACECFG.HL_ | 6.6 KB | 7 Feb 1997 |
| WIN32/PACECFG.CP_ | 107.5 KB | 7 Feb 1997 |
| WIN32/UNELNK3.EX_ | 99.9 KB | 11 Jun 1997 |
| WIN32/I386/ELNK3.SY_ | 20.1 KB | 20 Jun 1997 |
| PKTDVR/3C5X9PD.COM | 12.7 KB | 7 Sep 1994 |
| !TCM5095.CFG | 3.0 KB | 3 May 1993 |
| UTILS/FILFND.EXE | 8.0 KB | 21 Sep 1993 |
| UTILS/FILCPY.EXE | 12.1 KB | 21 Sep 1993 |
| UTILS/PACK.EXE | 12.4 KB | 28 Jun 1994 |
| UTILS/FILEDT.EXE | 23.5 KB | 21 Sep 1993 |
| UTILS/BROWSE.COM | 1.2 KB | 30 Sep 1993 |
| UTILS/SHOWVER.EXE | 8.7 KB | 1 Oct 1991 |
| !TCM5094.CFG | 3.6 KB | 3 May 1993 |
| MSLANMAN.OS2/DRIVERS/NIF/ELNK3.NIF | 123 bytes | 5 May 1992 |
| MSLANMAN.OS2/DRIVERS/ETHERNET/ELNK3/ELNK3.OS2 | 25.2 KB | 6 Mar 1997 |
| MSLANMAN.OS2/DRIVERS/ETHERNET/ELNK3/PROTOCOL.INI | 974 bytes | 14 Mar 1995 |
| !TCM5090.CFG | 3.4 KB | 3 May 1993 |
| @627C.ADF | 5.5 KB | 11 Dec 1992 |
| PARTNO | 164 bytes | 10 Jul 1997 |
| W95EL5X9.INF | 17.2 KB | 11 Jun 1997 |
| HELP/ROADMAP.TXT | 3.2 KB | 7 May 1997 |
| HELP/NETWARE.411 | 6.6 KB | 2 May 1997 |
| HELP/SUPPORT.TXT | 4.3 KB | 11 Jul 1996 |
| HELP/CLIENT32.TXT | 7.3 KB | 14 May 1997 |
| HELP/WINDOWS.TXT | 3.8 KB | 11 Jul 1996 |
| HELP/W95NDIS3.TXT | 10.9 KB | 31 May 1997 |
| HELP/README.TXT | 9.4 KB | 31 May 1997 |
| HELP/W95NETWR.TXT | 2.3 KB | 11 Jul 1996 |
| HELP/IMPORT.TXT | 495 bytes | 19 Jan 1995 |
| HELP/WINNT.TXT | 3.9 KB | 31 May 1997 |
| HELP/NWOS2ODI.TXT | 2.4 KB | 11 Jul 1996 |
| HELP/SYSRESRC.TXT | 1.7 KB | 11 Jul 1996 |
| HELP/INSTALL.TXT | 4.1 KB | 4 Sep 1996 |
| HELP/INSTRUCT.TXT | 17.6 KB | 11 Jul 1996 |
| HELP/LANSRV.TXT | 6.3 KB | 17 Jul 1996 |
| HELP/TROUBLE.TXT | 2.6 KB | 11 Jul 1996 |
| HELP/NETWARE.311 | 700 bytes | 4 Sep 1996 |
| HELP/BANYAN.TXT | 2.7 KB | 11 Jul 1996 |
| HELP/WFWNDIS3.TXT | 2.3 KB | 4 Sep 1996 |
| HELP/LANTASTK.TXT | 8.0 KB | 18 Jul 1996 |
| HELP/W95NDIS2.TXT | 2.2 KB | 11 Jul 1996 |
| HELP/WFWNDIS2.TXT | 2.3 KB | 11 Jul 1996 |
| HELP/PACKET.TXT | 1.6 KB | 11 Jul 1996 |
| HELP/ISVLIST.TXT | 782 bytes | 11 Jul 1996 |
| HELP/PATHWORK.TXT | 3.6 KB | 11 Jul 1996 |
| HELP/NWDOSODI.TXT | 4.6 KB | 11 Jul 1996 |
| HELP/LANMAN.TXT | 1.6 KB | 4 Sep 1996 |
| HELP/WFWNETWR.TXT | 2.5 KB | 11 Jul 1996 |
| !TCM5092.CFG | 3.4 KB | 3 May 1993 |
| PNPDSABL.BAT | 55 bytes | 7 Mar 1995 |
| HELP.EXE | 1.3 KB | 19 Jul 1996 |
| OEMSETUP.INF | 64.9 KB | 20 Jun 1997 |
| MSLANMAN.DOS/DRIVERS/NIF/ELNK3.NIF | 123 bytes | 5 May 1992 |
| MSLANMAN.DOS/DRIVERS/ETHERNET/ELNK3/PROTOCOL.INI | 981 bytes | 14 Mar 1995 |
| MSLANMAN.DOS/DRIVERS/ETHERNET/ELNK3/ELNK3.DOS | 23.6 KB | 6 Mar 1997 |
| WFW311/ELNK3.386 | 35.4 KB | 18 Jul 1996 |
| WFW311/OEMSETUP.INF | 792 bytes | 16 Jul 1996 |
| LICENSE.TXT | 7.0 KB | 15 Jul 1996 |
How to Update 3Com EtherLink III ISA (3C509-TPO) in EISA mode Device Drivers Quickly & Easily
Step 1 - Download Your Driver
To get the 3Com EtherLink III ISA (3C509-TPO) in EISA mode 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 3Com EtherLink III ISA (3C509-TPO) in EISA mode 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 3Com 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 3Com 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.