Hitachi Compute Blade 500 Series User Manual page 44

Processors sub menu
Select an item to display or set, and press Enter.
The following table shows description of menu items appeared in the left side
of the window.
Select an item to display or set, and press Enter. You can scroll the window
using the up arrow in red on the left top or the down arrow in red on the
bottom left if they are shown on the window.
Note: Keep the default value: Disable for C-States and C1 Enhanced Mode.
Do not change them.
Menu items
Turbo Mode
Processor
Performance States
C-States
Package ACPI C-
State Limit
C1 Enhanced Mode
Hyper-Threading
Execute Disable Bit
Intel Virtualization
Technology
Hardware Prefetcher
Adjacent Cache
Prefetch
DCU Streamer
Prefetcher
DCU IP Prefetcher
2-24
Table 2-21 Processors menu items
Selection
• Disable
• <<Enable>>
• Disable
• <<Enable>>
• <<Disable>>
• Enable
• ACPI C2
• <<ACPI C3>>
• <<Disable>>
• Enable
• Disable
• <<Enable>>
• Disable
• <<Enable>>
• Disable
• <<Enable>>
• Disable
• <<Enable>>
• Disable
• <<Enable>>
• Disable
• <<Enable>>
• Disable
UEFI setup menu
Hitachi Compute Blade 500 Series EFI User's Guide
1 Description
Sets a CPU Turbo Mode, which is
enabled after the reboot.
Shown only when supported by
installed CPUs.
Sets CPU EIST, which is enabled
after the reboot.
Sets a CPU power saving mode,
which is enabled after the reboot.
Sets a C-State upper limit in the
CPU idle mode.
Not displayed when C-States is
disabled.
Sets CPU Enhanced C1E State,
which is enabled after the reboot.
Sets CPU Hyper Threading.
Shown only when supported by
installed CPUs.
With "Disable", the response is
always "0" for XD feature flag.
Sets Vanderpool Technology, which
is Intel's new virtualization
technology.
Sets Hardware Prefetcher.
Sets Adjacent Cache Prefetch.
Sets DCU Streamer Prefetcher.
Sets DCU IP Prefetcher.