Microsoft* Windows 7 * is not a validated operating system for the D915GEV. Drivers and applications might not function properly since they are not specifically designed for the use under this operating system.
For a list of the supported operating systems, please, refer to the following URL
http://intel.com/support/motherboards/desktop/sb/CS-008326.htm
Also, there is not support for the Intel Desktop Board D915GEV since 2007, for technical assistance please check the following URL:
http://www.intel.com/support/motherboards/desktop/D915GEV/