HP ROM-Based Setup Utility - Manual (Page 186)

HW Prefetcher
The HW Prefetcher option allows processor prefetch features to be disabled. In most cases, the
option should remain enabled. The option should be disabled only after performing application
benchmarking to verify improved performance in a particular environment.
Adjacent Sector Prefetch
The Adjacent Sector Prefetch option allows processor prefetch features to be disabled. In most
cases, the option should remain enabled. The option should be disabled only after performing
application benchmarking to verify improved performance in a particular environment.
No-Execute Memory Protection
The No-Execute Memory Protection option, which is a toggle setting that is disabled by default,
provides protection against malicious codes and viruses. Unless the location specifically contains
executable code, memory is marked as non-executable.
Intel Virtualization Technology
The Intel Virtualization Technology option, when enabled, causes a Virtual Machine Manager to
utilize hardware capabilities provided by Intel Virtualization technology. The option is disabled
by default.
Expansion Card Caching Optimization
The Expansion Card Caching Optimization option allows some expansion cards to cache their
I/O resources for improved performance. If the expansion card and its driver do not support this
optimization, this option should remain disabled. When the option is enabled, a warning appears:
Setting this option to enabled may cause some system RAM to be
non-cacheable in certain uncommon memory configurations. See Help.
Power Supply Requirements Override
The Power Supply Requirements Override setting enables the system to boot and operate when
installed power supplies do not meet system requirements.
CAUTION: When Power Supply Requirements Override is enabled, some configurations may
not operate properly. Before enabling this option, verify and understand the system power
requirements.
186 RBSU menu-driven interface, version 2.xx (G5 and earlier servers)