Does the Intel® Desktop Board D820LP support Ultra ATA/66 hard drives?
Yes. One of the new features of the Intel® 820 chipset is its ability to support both Ultra ATA transfer rates of 33 MB/sec and 66 MB/sec. To realize a true throughput performance difference, a hard drive may need to implement higher spindle speeds, such as 7200 RPM, and a large onboard buffer size, such as 2 MB, to take advantage of the increased bandwidth available on the IDE channel.
