Disk Drive Controller
The system drive controller is an important part of system performance. In most modern boards your drive controller will run off of the PCI-e bus. The PCI-e bus performance can be affected by poor trace layout as well as many other design choices that show up on different boards.
For testing we use Sisoft's Sandra and Everest.
The HDD speeds we see in Sandra are impressive. The Foxconn A9DA-S out runs the competition including the H57 from Intel.
As a side note, we have been asked why our SATA 3.0 scores are so much lower; this is because we are using an Intel X25 SSD for our SATA II testing and a Seagate Barracuda XT HDD (traditional spindle/magnetic media) for our SATA 3.0 testing. Once we have access to a SATA 3.0 based SSD we will add this into our future motherboard reviews.
Drive speed testing under Everest shows us pretty much the same thing that Sandra does with a little more detail.