Dell Precision R5400 Workstation/FX100 Technical Guide
D E L L
P R E C I S IO N
W O R K S T A T I O N S
–
D O N ’ T
S E T T L E
F O R
A N Y T H I N G
L E S S
A D #
8 1 0 0 0 2 0 0 8
P
A G E
3 1
O F
3 6
the system. The settings are:
Off
– Disable Enhanced SpeedStep Technology
On
– Enable Enhanced SpeedStep Technology
Default setting:
Off
Virtualization
This field specifies whether a Virtual Machine Monitor (VMM) can utilize the additional hardware capabilities
provided by Intel® Virtualization Technology. The settings are:
Off
– Disable Virtualization Technology
On
– Enable Virtualization Technology
The system will need power off and restart in order for the change to take effect.
Default setting:
Off
VT for Direct
I/O
This field specifies whether a Virtual Machine Monitor (VMM) can utilize the additional hardware capabilities
provided by Intel® Virtualization Technology for Direct I/O. The settings are:
Off
– Disable Virtualization Technology for Direct I/O
On
– On Virtualization Technology for Direct I/O
Default setting:
Off
Limit CPUID
Value
This field limits the maximum value the processor Standard CPUID Function will support. Some operating
systems will not complete installation when the maximum CPUID Function supported is greater than 3.
Off
– The CPUID Function will not be limited to 3
On
– The CPUID Function will be limited to 3
Default setting:
Off
HDD Acoustic
Mode
This field allows the user to optimize the IDE drives performance and acoustic noise level based on personal
preferences.
Bypass
– Do nothing (needed for older drives)
Quiet
– Slower, but quieter
Suggested
– Allow drive manufacturer to select mode
Performance
– Faster, but possibly noisier
Default setting:
Bypass
Snoop Filter
This field allows users to turn of/off the snoop filter.
Off
– Snoop Filter is disabled
On
– Snoop Filter is enabled
Default setting:
On
ACL Prefetch
This field allows users to turn of/off Adjacent Cache Line Prefetch.
