Dell OptiPlex 790 Driver Download (Official)

2 Ratings

Supported Models

OptiPlex 790 Driver

SUNIX 1-Port Parallel Card Driver

SUNIX 1-Port RS-232/422/485 Serial Card Driver

SUNIX 1-Port Serial & 16-Channel Digital IO Card Driver

SUNIX 1-Port Serial & 32-Channel Digital IO Card Driver

SUNIX 1-Port Serial & 6-Channel Digital IO Card Driver

SUNIX 1-Port Serial & 8-Channel Digital IO Card Driver

SUNIX 1-Port Serial / 1-Port Parallel Multi-I/O Card Driver




Supported Operating Systems

Windows 7, Windows 7 (64 bit), Windows Vista, Windows Vista (64 bit), Windows XP, Windows XP (64 bit)

File Name

Versions (21-Mar-2014)

Find Related Drivers

Uploader Notes

Modem Driver File

Uploaded By

Sharmila (DG Staff Member) on 26-Sep-2017

Device Hardware IDs

Compatible IDs















Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
mup.xml 38.4 KB 11 Feb 2011 3.5 MB 11 Feb 2011
package.xml 91.7 KB 11 Feb 2011
readme.txt 9.2 KB 7 Jan 2011
Setup.exe 5.2 MB 21 Jan 2011
setup.ini 2.7 KB 24 Jan 2011
snxpcamd.sys 53.1 KB 3 Dec 2010
snxpcard.sys 49.0 KB 3 Dec 2010 21.9 KB 7 Dec 2010
snxpci.inf 28.1 KB 3 Dec 2010
snxpcip.inf 9.4 KB 3 Dec 2010 23.3 KB 7 Dec 2010
snxppal.sys 31.0 KB 3 Dec 2010
snxppalx.sys 86.4 KB 3 Dec 2010
snxppamd.sys 100.7 KB 3 Dec 2010
snxpramd.dll 124.3 KB 3 Dec 2010
snxprops.dll 119.2 KB 3 Dec 2010
snxpsamd.sys 97.1 KB 3 Dec 2010
snxpserx.sys 78.7 KB 3 Dec 2010

How to Update OptiPlex 790 Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the OptiPlex 790 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 OptiPlex 790 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 Driver Update Utility for OptiPlex 790. 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 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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