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 drive performance here is bad, but could be due to the drivers we ended up having to use.
Stock HDD Performance
Again, Everest shows us more details than Sandra but still indicates that the Z8NA-D6C could have some drive performance issues.