"This feature controls the system controller's PCI prefetch capability. When enabled, the system controller will prefetch eight quadwords (one cache line) of data whenever a PCI device reads from the system memory. Here's how it works..."
You do software updates to get the most from favourite programs right? Updating a motherboard BIOS can in a timely manner is also critical. The guide to Flashing a Motherboard BIOS spells out the often complicated steps in plain english. PCSTATS Tips