if i trie with only one dimm it boots at 1,8v two dimms c1 error, simply wont post any image.

so i have to place only a dimm et e voltage to 2,49v and shut down, place again de second dimm and boot

i had the same trouble with evga 680i and dfi 680i sli lt. but this time i think my ram is ed so iam going to by cheaper ram but this time 4gbs