Go to cpuid.com and download the CPU-Z utility. Download the zip file to avoid installation. Extract the contents of the zip file and run the exe.
You will get enough infos regarding your system and motherboard.
We regret to inform you that the chipset for your Dell* system will not appear in our website based on the fact that it is an OEM (Original Equipment Manufacturers) version. The drivers and chipsets listed in our website are for Intel boxed motherboards exclusively. Thank you for your understanding.