VISION
UDOO VISION User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by M.B. Copyright © 2021 SECO S.p.A
58
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
Enabled / Disabled
Enable or Disable TM1 Thermal management modes.
Active Processor Cores
1 / 2 / 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
Max Battery
Auto
Only available when P-states are enabled
Allows to select which performance state must be set by UEFI BIOS before starting OS loading.
Turbo Mode
Enabled / Disabled
Only available when P-states are enabled
Enable processor Turbo Mode
C-States
Enabled / Disabled
Enable processor idle power saving states (C-States).
Enhanced C-States
Enabled / Disabled
Enable P-state transition to occur in combination with C-states.
Max C-States
C1 / C6 / C7
Only available when C-states are enabled
Allows selection of the maximum C-State that must be supported by the OS.