Menu items
Selection
1
Description
• Disable Shown only when supported by
installed CPUs.
Execute Disable Bit • Disable
• <<Enable>>
With "Disable", the response is
always "0" for XD feature flag.
Intel Virtualization
Technology
2
•
Disable
• <<Enable>>
Sets Vanderpool Technology, which
is Intel's new virtualization
technology.
Enable SMX
2
• <<Disable>>
• Enable
Sets the safe mode.
Hardware Prefetcher • <<Enable>>
• Disable
Sets Hardware Prefetcher.
Adjacent Cache
Prefetcher
※2
• <<Enable>>
• Disable
Sets Adjacent Cache Prefetcher.
DCU Streamer
Prefetcher
※2
• <<Enable>>
• Disable
Sets DCU Streamer Prefetcher.
DCU IP Prefetcher
※2
• <<Enable>>
• Disable
Sets DCU IP Prefetcher.
Direct Cache Access
(DCA)
※2
• <<Enable>>
• Disable
Sets that the I/O device can
transfer data directly to CPU cache.
Cores in CPU Package
•
<<All>>
• 1-17
Sets running cores in the CPU
package.
QPI Link Frequency
※2
• Minimal Power
• Balanced
• <<Max Performance>>
Sets the number of clock
frequencies in Quick Path
Interconnect (QPI) Link.
Energy Efficient
Turbo
• <<Enable>>
• Disable
Sets the energy efficient turbo. You
can set only when Turbo Mode is
[Enable].
Shown with the server blade
firmware version 09-11 or later.
Uncore Frequency
Scaling
• <<Enable>>
• Disable
Sets the functionality to dynamically
adjust the uncore operation
frequency.
Shown with the server blade
firmware version 09-11 or later.
MWAIT/MMONITOR • Disable
• <<Enable>>
Sets the MWAIT / MMONITOR.
Shown with the server blade
firmware version 09-11 or later.
Note:
1. A value in double angle brackets, << >>, shows the default.
2. If you change a setting of this item, the EFI might not start. Do not change any
setting.
UEFI setup menu
2-119
Hitachi Compute Blade 500 Series EFI User's Guide
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