So, what Socket 939 board should you look at? Anandtech has boards from Abit, Gigabyte, MSI and ECS on tap this time. Any of the Socket 939 motherboards that we tested here would make a great home for a Socket 939 Athlon 64. They all perform very well at stock speed and any of them will serve you well. We even found that all five of the tested motherboards performed at the fastest timings available with both 2 and 4 DIMMs on board, so even that is a non-issue. If you have some serious cash to burn, you really would do well to check it out.