All drivers for that system can be found at:

 

http://support.dell.com/support/downloads/devices.aspx?c=us&cs=19&l=en&s=dhs&SystemID=INS_PNT_P4_1150&os=WW1&osl=EN

 

 

Note that if you have recently reinstallated Windows, make sure you install the chipset drivers first.   If you see that there is more than one choice for a particular device, you will need to know which devices were shipped with your system.  You may be able to figure this out by checking your original invoice or by going to the following site:

 

http://support.dell.com/support/topics/global.aspx/support/my_systems_info/en/details?c=us&cs=19&l=en&s=dhs&~tab=2

 

entering your Service Tag number and clicking on the Original Configuration tab.

 

Steve