EVGA didn't publish CPU support list for their socket 775 mainboards like other motherboard companies did. Instead, they published CPU compatibility list for the chipset, and then it was up to the user to determine what chipset the board used. CPU upgrade data for NVIDIA chipsets, that was added recently, should work those socket 775 boards.
Evga
socket 775 122-ck-nf77 supports q6600
EVGA didn't publish CPU support list for their socket 775 mainboards like other motherboard companies did. Instead, they published CPU compatibility list for the chipset, and then it was up to the user to determine what chipset the board used. CPU upgrade data for NVIDIA chipsets, that was added recently, should work those socket 775 boards.
CPU support list for socket 775 mainboards
in this list are all supported CPU for socket 775
www(.)evga(.)com/support/motherboard/nForce_Intel_CPU_List.pdf