• Turbo Mode
• C-States
•
Hyper-Threading
• Execute Disable Bit
• Hardware Prefetcher
• Cores in CPU Package
The following table shows description of menu items displayed in the left side
of the window.
Select an item to display or set, and press Enter.
Table 2-40 Processors menu items
Menu items
Selection
1
Description
Turbo Mode • <<Enable>>
• Disable
Sets a CPU Turbo Mode, which is
enabled after the reboot.
Shown only when supported by
installed CPUs.
Processor
Performance States
•
Disable
• <<Enable>>
Sets CPU EIST, which is enabled
after the reboot.
C-States • Disable
• <<Enable>>
Sets a CPU power saving mode,
which is enabled after the reboot.
C1 Enhanced Mode • Disable
• <<Enable>>
Sets CPU Enhanced C1E State,
which is enabled after the reboot.
Hyper-Threading • <<Enable>>
• Disable
Sets CPU Hyper Threading. Shown
only when supported by installed
CPUs.
Execute Disable Bit • Disable
• <<Enable>>
With "Disable", the response is
always "0" for XD feature flag.
Enable TXT • <<Disable>>
• Enable
Sets Trusted Execution Technology.
VMX • Disable
• <<Enable>>
Sets Vanderpool Technology (Intel's
virtualization technology).
Hardware Prefetcher • <<Enable>>
• Disable
Sets Hardware Prefetcher.
Adjacent Cache
Prefetch
• <<Enable>>
• Disable
Sets Adjacent Cache Prefetcher.
DCU Streamer
Prefetcher
• <<Enable>>
• Disable
Sets DCU Streamer Prefetcher.
DCU IP Prefetcher • <<Enable>>
• Disable
Sets DCU IP Prefetcher.
UEFI setup menu
2-47
Hitachi Compute Blade 500 Series EFI User's Guide
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