I surfed to the VIAArena to see what has changed and this is what they said: This patch, for all Microsoft Operating Systems, will increase the burst rate with the following RAID controller chips: Adapttech, Acard, Highpoint and Promise. This may not be noticeable in overall Hard Disk performance benchmarks as burst rate is not measured separately and only makes up a small percentage of Hard Disk performance. This patch can be used on all VIA chipsets. The driver in this zip file is the viapfd.sys version 1.05. This file was last updated on 7 February 2002. The change from the previous version is that it fixes an error message that would sometimes appear in the event viewer. Click on Read More... for direct download links. Download Link #1 Download Link #2 Local download