I have a system with 2.4GHz processor. i was

You are going to have to be more specific about your system. The main thing we need to know to solve your problem is what make and model motherboard you have.
You can download CPUZ from www.cpuid.com and on the mainboard tab it will tell you all the information about your motherboard. Once you have that information then we can give you an educated answer about your drivers.

Do you have the motherboard support CD? If you have it, then use it and install all the drivers needed for your operating system. But if you don't have it then visit the website of the motherboard and download there the drivers.

to download drivers for motherboard pliz visit this site http://drivers.softpedia.com/get/MOTHERBOARD/

For the latest drivers for the Intel D845GVSR motherboard, visit http://downloadcenter.intel.com/Default.aspx and in the Search box, type in D845GVSR and then choose your operating system as well as Drivers.