Ur board is not original intel board{board is intel dg31pr}

here u can choos ur os and download the driver...

http://downloadcenter.intel.com/SearchResult.aspx?lang=eng&ProductFamily=Desktop+Boards&ProductLine=Intel%C2%AE+3+Series+Chipset+Boards&ProductProduct=Intel%C2%AE+Desktop+Board+DG31PR

Intel DG31PR Motherboard has Intel 3 Series Chipset and you have to install the chipset drivers, which would install the PCI Drivers as well. Please visit the link given below, download the chipset drivers and install them.
Intel DG31PR Chipset Drivers
The above drivers support Windows 7, Windows 2000, Windows XP Home Edition, Windows XP Media Center Edition, Windows XP Professional x64 Edition and Windows XP Professional

Hope it helps! Good Luck!
CreativeTECH

You should have got a driver CD with your board. If not, you can download the correct drivers for your board from this link:
http://downloadcenter.intel.com/SearchResult.aspx?lang=eng&ProductFamily=Desktop+Boards&ProductLine=Intel%C2%AE+3+Series+Chipset+Boards&ProductProduct=Intel%C2%AE+Desktop+Board+DG31PR

(Copy and paste in your browser if you cannot click it)

i found driver from this site, try to download and install. http://downloadcenter.intel.com/SearchResult.aspx?lang=eng&ProductFamily=Desktop+Boards&ProductLine=Intel%C2%AE+3+Series+Chipset+Boards&ProductProduct=Intel%C2%AE+Desktop+Board+DG31PR

you can download the latest sound driver from :

http://downloadcenter.intel.com/SearchResult.aspx?lang=eng&ProductFamily=Desktop+Boards&ProductLine=Intel%c2%ae+3+Series+Chipset+Boards&ProductProduct=Intel%c2%ae+Desktop+Board+DG31PR

Use the site below to download the driver of your intel motherboard.

http://downloadcenter.intel.com/SearchResult.aspx?lang=eng&ProductFamily=Desktop+Boards&ProductLine=Intel%C2%AE+3+Series+Chipset+Boards&ProductProduct=Intel%C2%AE+Desktop+Board+DG31PR

generally when u format ur hard drive and install operating system .. lan drivers will be installed automatically... any way u have missed LAN driver for DG31PR ..so u can them from Realtek website..

pls go download the latest drivers for ur mother board from here everything will be ok and pls rate me FIXYA for this

http://downloadcenter.intel.com/Filter_Results.aspx?strOSs=All&strTypes=All&ProductID=2839&lang=eng&OSFullName=All%20Operating%20Systems

hey
i solved this
Just go to device manager
look for ur usb root hubs
rights click on them
uninstall the driver
aftr uninstalling all usb drivers
click on 'scan for hardware changes' icon
windows will again load the drivers and it will right

Memory for Intel motherboards require the memory to be compatible with, Serial Presence Detect (SPD). Its suggested when upgrading memory for Intel boards or increasing memory to do you're search for the total memory you wish & include the Intel mother board model. Example: http://www.google.com/search?hl=en&q=Memory+for+Intel+DG31PR&btnG=Google+Search
This first link shows what brands works with the DG31PR MB.

Intel Tested Memory for DG31PR MB link:
http://www.intel.com/support/motherboards/desktop/dg31pr/sb/cs-027918.htm
You're Intel board is well within the Intel warranty. If you find this information not helpful please call Intel tech support. It is possible you're board needs higher attention. Please check & install the latest bios. Intel's link for bios, manual & drivers link:
http://downloadcenter.intel.com/filter_results.aspx?strTypes=all&ProductID=2839&OSFullName=Windows*+XP+Professional&lang=eng&strOSs=44&submit=Go%21
If you are not using WinXP click this link & pick you're current operating system.
http://downloadcenter.intel.com/Product_Filter.aspx?ProductID=2839&lang=eng

Mike