Chapter 2
Installation and Configuration
©
National Instruments
2-7
•
SATA Controller
—This setting specifies whether or not the onboard
SATA controller is enabled or disabled. The default value is
Enabled
.
–
SATA Mode Selection
—This setting determines whether AHCI
mode is enabled or disabled for the SATA port. Some operating
systems, such as Windows 2000, do not support AHCI mode. You
can use this setting to disable AHCI mode and enable IDE mode
so that non-compatible OSes function correctly. The default value
is
AHCI
.
•
Internal Drive (SATA)
—This item displays the onboard SATA drive
detected in the system.
CPU Configuration Submenu
Use this submenu to apply alternate settings to the CPU. Normally, you do
not need to modify these settings, as the factory default settings provide the
most compatible and optimal configuration possible.
•
Enabled CPU Cores
—This setting selects the number of active CPU
cores for the processor. Valid values are
All
,
1
. The default value is
All
.
•
C-States
—This setting enables or disables CPU power management.
The default value is
Enabled
. Enabling C-States allows the processor
to put idle CPU cores to sleep, allowing active cores to run at higher
than base frequencies when Turbo Boost is enabled. Enabling C-States
can increase application jitter, so care should be taken when enabling
this setting on a Real Time system. When the BIOS is configured to
boot LabVIEW Real-time, C-States will be automatically disabled. In
order to manually enable C-States when in LabVIEW Real-Time
mode, see the
LabVIEW RT Configuration Overrides Submenu
.
•
Hardware Prefetcher
—This setting enables or disables CPU cache
hardware prefetching. The default value is
Enabled
. Enabling
hardware prefetching can increase system performance for some
applications, but can cause control algorithms to behave less
deterministically.
•
Adjacent Cache Line Prefetch
—This setting enables or disables
prefetching of adjacent cache lines from memory to the CPU cache.
The default value is
Enabled
. Enabling adjacent cache line prefetching
can increase system performance for some applications, but can cause
control algorithms to behave less deterministically.