The last area is memory performance and here, the results are clearly disappointing. The Epox is a fine board with 2 DIMMs, but when we tested with 4 DIMMs, the 9NDA3+ sets the memory speed at DDR333 no matter what we set in the BIOS. This is the first Socket 939 board we have tested that has been so restrictive in performance with 4 DIMMs. This limitation is so severe that we cannot really recommend the Epox if you plan to use 4 DIMMs now or in the future. Choose another Socket 939 board for four DIMMs. We suspect that Epox can fix this limitation in a BIOS update, but until we see this problem corrected, performance with 4 DIMMs will be a disappointment.
It should also be mentioned that when we first received the Epox 9NDA3+, we could only run memory at 1T in slots 3 and 4. Any attempt to run at a 1T or Auto Command Rate setting failed boot. Epox supplied us an updated BIOD that did fix this problem, but the new BIOS did not fix our other concern. About 50% of the time, the Epox board with either BIOS would fail on reboot and freeze at the first BIOS screen. We were always able to continue a boot by hitting reset or turning the computer off first, but these failed reboots were time consuming and very annoying for a production board. Epox needs to fix this issue with a BIOS update or they will get many complaints from end users.