Try flashing the CMOS and be sure to have the latest bios. I do believe early bios revisions didn't support 1000mhz right off (friend also has a 780i and that was the prob, although he had kingston hyperx at the time).
Originally Posted by ColdFusionWi
I updated my bios to the latest revision and cleared CMOS and nothing changed. I'm getting 353 million + errors on slot 1 and 250 + errors on slot 2 according to Memtest86. Errors first started on test 7 but 99% of the errors occur on test 8. I let it run over night and I don't believe it finished a single pass.
Again, I can flip flop my sticks and I get the same results. If I use a single stick it will pass Memtest. My pc will not boot if I overclock my fsb by even 100mhz so right now I'm running 100% stock.