If you are using an Nforce 780i its A known BIOS issue its ben fixed with the latest BIOS at From EVGA.com Look at your motherboard website for new BIOS
BIOS P06 FOR EVGA 780i
* OS compatibility fixes (Vista logo hang during reboot)
* Added Overclocking support for Penryn-1066 CPUs
* ACPI fixes for Wake on Lan
MSI should have this BIOS Updated in there website just look for it