HP ROM-Based Setup Utility - Manual (Page 135)

DRAM Prefetch on I/O Request
NOTE: This option is available on G7 and Gen8 servers with AMD processors.
Depending on the type of I/O and expansion cards being used, the processor constantly prefetches
data from RAM to decrease latency within the I/O subsystems and expansion cards. This option
controls those processor prefetch features.
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 135