Q7-974
Q7-974 User Manual - Rev. First Edition: 0.1 - Last Edition: 2.3 - Author: S.B. - Reviewed by G.G. Copyright © 2017 SECO S.r.l.
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4.5.1
Advanced CPU control submenu
Menu Item
Options
Description
Use XD Capability
Enabled / Disabled
Enable or disable processor XD (Execute Disable) capability, it allows to enable or disable the hardware
feature needed for data execution prevention
Limit CPUID Max Value
Enabled / Disabled
Set this option to enabled for use with older O.S. that are not able to manage the CPUID value higher than
03h, which was typical for Intel
®
Pentium 4 with Hyper Threading Technology
Leave disabled for newer O.S. able to manage actual CPUID value.
Bi-Directional PROCHOT#
Enabled / Disabled
PROCHOT# is the signal used to start thermal throttling. This signal can be driven by any processor cores
’
to signal that the processor will begin thermal throttling. If bi-directional signaling is enabled, then external
components can also drive PROCHOT# signal in order to start throttling.
VTX-2
Enabled / Disabled
Enable or Disable Intel
®
Virtualization Technology, allowing hardware-assisted virtual machine management.
TM1 and TM2
Enabled / Disabled
Enable or Disable TM1 and TM2 Thermal management modes.
AESNI Feature
Enabled / Disabled
Enable or Disable AESNI (Advanced Encryption Standard New Instructions) set of instructions, which are
used to improve the speed of applications performing encryption and decryption using the Advanced
Encryption Standard (AES).
Active Processor Cores
1 / 2/ 3 / ALL
Number of cores to enable in each processor package. 1 means that multicore processing is disabled.
P-States (IST)
Enabled / Disabled
Enable or disable processor management of performance states (P-states)
Boot Performance Mode
Max Performance
Low Power
Only available when P-states are enabled
Allows to select which performance state must be set by BIOS before starting OS loading.
Turbo Mode
Auto / Enabled / Disabled
Only available when P-states are enabled
Enable processor Turbo Mode
Force CPU Speed
Disabled
List of speeds supported by the
SoC used
Only available when P-states are enabled
Force CPU speed After boot. When this feature is enabled, P-State APCI Table will be disabled.
The list of the speeds shown depends on the SoC mounted on the module
C-States
Enabled / Disabled
Enable processor idle power saving states (C-States).
Max C-States
C1 / C6 / C7
Allows selection of the maximum C-State that must be supported by the OS.
