Can you use 3 sticks of memory with Athlon 64 754 or 939 boards?

[davidos]

I have 1 GB of ram that is 1 512 stick and 2 x 256 sticks. I want to but an Athlon 64 but I don't know which one works with more than 2 sticks of memory... 754 or 939... Are the mobos picky?

 

[sonoma1993]

i forgot were i read it, but on the skt 754 mobo, using 3 sticks of ram will drop the ram speed down to either ddr2100 or drr 2700, i forgot which one it was but i think it most likely the it'll drop to 2100. but yeah 3 sticks of memory will work in skt 754, and 3 sticks of memory will work in the skt 939 without the ram speed dropping down to 2100.