AMD skt 939 and 4 stick of memory timing problem

Did AMD ever fix the problem with ram only being able to run at 2t memory timings when using 4 sticks of ram? i am asking because got a week 611 4200+ and was wanting to get an additional 2 sticks of 512 in addition to the two i already have.

No they did not. I had to run at 2T with my ram.