after removing my 780i from case to swap ultima 90 for new xiggy sd964 (much better) i find i cant use dim slots 1 and 2 w/o getting a long beep and solid 25 err. i wont speculate further on the reasons for this. so i put in rma e.a.r. request on saturday, get ok on monday, new retail box today (wednesday) at 11 am. also label for return shipping of my crippled board. evga cs reigns. had to rma one of my 9800gx2 because of white noise/static over the hdmi, and that also took like 3 days.