Hello, I recently reinstalled the OS on a Dell Optiplex 755 and unfortunately, I don't have the drivers disc for this computer. I was able to install drivers for all of the hardware components except I could not find the drivers for the 'PCI Simple Communications Controller' Could someone help me locate this driver? I think this missing driver may be contributing to an issue with the PC's ability to connect to the internet at full strength. I am using an Encore Wireless Router in the upstairs portion of a home and the wireless signal reaches as far as the office downstairs but the the connection is very slow. Just says the signal strength is low. Is there a way strengthen the signal from the router or from the Linksys Wireless adapter on the computer its brand new.

Sorry this is a question 1a and 1b scenario. Thank you in advance! Yes there is and I attempted to use this tool, however, it only provided me with the Ethernet Controller and Graphics card driver updates. Not sure why it excluded this one in particular. I used a tool called Unknown Device Identifier also, to figure out which drivers were missing and it's still showing that the PCI Comm, Controller is missing a driver.

I'm not sure if this missing driver will have anything to do with the low signal strength I am getting from the wireless adapter, but that is the main problem I am facing. Thanks for responding!

I have a similar experience on some HP boxes here. So it might be a parallel situation (or completely unrelated). I nmy case I beleive it is related to the AHCI driver.

In HP's case they do not seem to keep this with all the other driver for a particular model, but somewhere off by itself (perhaps it is common to all models). Every time I need it I have to hunt it down again. You might try this link and see if one of these drivers solves your issue. Otherwise Dell has great online support (at least IMO).

So if you just get online support and tell them, they will link you directly to the driver you need. Shouldn't take you more than 10 minutes. It is the system drivers. Dell systems have a particular order in which the drivers need to be installed. From their website. Desktop System Software (DSS) or Notebook System Software (NSS) - A vital utility that provides critical updates and patches for the operating system.

If you are reinstalling Windows or updating all drivers, it is important that this software be installed first. This is located under the System and Configuration Utilities Category on the Drivers and Downloads page. Chipset - Helps Windows control system board components and controllers. This is located under the Chipset Category on the Drivers and Downloads page. PCMCIA/Smartcard controller located under the Security Category on the Drivers and Downloads page. Intel Storage - Intel Matrix Storage Manager located under SATA Drives on the Drivers and Downloads page (only for Intel chipset computers). Audio Adapter - Enables and enhances the audio controller. This is located under the Audio Category on the Drivers and Downloads page.

Video Adapter - Enhances video performance. This is located under the Video Adapter Category on the Drivers and Downloads page. Network Interface Card (NIC) - Enhances the network controller for Internet or network access.

This is located under the Network Category on the Drivers and Downloads page. Dell Control Point (DCP) - Controls power management, ambient light sensor, wireless profiles, and security features on laptops. This is located under the Applications on the Drivers and Downloads page. The DCP is split into three separate programs with each one controlling different aspects. It may not be necessary to install all three parts of DCP depending on the system configuration.

Control Point System Manager - Controls power management and ambient light sensor settings. Control Point Security Manager - Controls security features such as the trusted platform module a finger print reader. Control Point Connection Manager - Controls wireless connection profiles. Note: Dell Control Point is new for Latitude E-Family.

Other Dell laptops use Quickset to control power management and the ambient light sensor. Dell Quickset - Controls power management and the ambient light sensor. This is located under the Applications Category on the Drivers and Downloads page ( Quickset is not applicable to Latitude E-Family laptops.

Use Dell Control Point instead). Wireless Network Card - Enables and enhances the wireless network controller. This is located under the Network Category on the Drivers and Downloads page. Bluetooth® Module located under the Communication Category on the Drivers and Downloads page. Touchpad, Pointer, Track stick, Mice, and Keyboards - Enhances the pointing device features.

Optiplex 745 Drivers Xp

This is located under the Mouse & Keyboards Category on the Drivers and Downloads page. Other Devices. Intel vPro™ or AMT™ - Enhances system manageability. This is located under the Chipset Category on the Drivers and Downloads page. Dell Wireless Mobile Broadband Cards located under the Communication Category on the Drivers and Downloads page. Modem - Allows dial-up capability.

This is located under the Communication Category on the Drivers and Downloads page. Touch Screen Digitizer - Enables touch screen mouse control available on select Dell laptops. This is located under the Input Category on the Drivers and Downloads page. Hope this helps.