HP ROM-Based Setup Utility - Manual (Page 129)

DCU Prefetcher
NOTE: This option is available on G7 and earlier servers with Intel processors.
This option controls processor prefetching. In most cases, this option should remain enabled. With
certain workloads, however, disabling this option may provide a performance benefit. Disable
this option only after performing application benchmarking to verify improved performance in a
particular environment.
Options include:
•
Enabled (default)
•
Disabled
Advanced Options menu 129