Even worse news, still freezing with only one stick in the first slot.
Maybe it's the video card? Is it worth changing the video card or is it definitely the mobo?
Hmmm... what to do (Memtest was fine on each stick, in each slot, but not 2 sticks together)
What mobo should I get?
Of course your mileage may vary but with me the next one won't be a Dell (I reckon Dell service is great though)