Skip to main content

Intel(R) TCC Mode Affected Settings

Table 1. Intel(R) TCC Mode Affected Settings
ItemOptionsDescription
Enable Monitor MWAIT

ASCII string

Allows Monitor and MWAIT instructions.

CPU P-state Control

ASCII string

You can select to controls CPU P-states (performance states).

[None]: Disables all P-states and processors work either at rated frequency or in Turbo Mode (if Turbo Mode is enabled).

[Legacy]: CPU P-states will be presented to the OS. The OS power management (OSPM) controls which P-state is selected.

[Autonomous]: The P-states are fully controlled by system hardware. No P-state support is required in the OS or VM.

[Cooperative] is a combination of [Legacy] and [Autonomous]. The P-states are still controlled by hardware but the OS can provide hints to the hardware for P-state limits, indicating the desired setting.

When a preset mode is selected, the low-level settings are not changeable and will be grayed out. To change the settings, choose System Settings > Operating Modes > Choose Operating Mode > Custom Mode.

Hardware P-states

ASCII string

[Disable]: Hardware chooses a P-state based on OS Request (Legacy P-States)\n

[Native Mode]: Hardware chooses a P-state based on OS guidance\n

[Out of Band Mode]: Hardware autonomously chooses a P-state (no OS guidance)

SpeedStep (Pstates)

ASCII string

Enable/Disable EIST (P-States)

Hyper-Threading [ALL]

ASCII string

Enables Hyper Threading (Software Method to Enable/Disable Logical Processor threads.

Page Policy

ASCII string

Select Page Policy

DRAM RAPL

ASCII string

Enable\Disable DRAM Rapl

DRAM RAPL Extended Range

ASCII string

Select DRAM RAPL Extended Range

CKE Throttling

ASCII string

Configures CKE Throttling

APD

ASCII string

APD On/Off

PPD

ASCII string

PPD On/Off

PCI-E ASPM Support (Global)

ASCII string

This option can disable ASPM support in all PCIe root ports.

PCI-E ASPM Support

ASCII string

This option can disable ASPM support in PCIe root ports.

 
Rlink ASPM Enable

ASCII string

Enable L1 ASPM for Rlink

Legacy IO Low Latency

ASCII string

Set to enable low latency of legacy IO.

 
PCI Express Root Port 1 - 12N/A

PCI Express Root Port 1 - 12

ASPM

ASCII string

PCI Express Active State Power Management settings.

L1 Substates

ASCII string

PCI Express L1 Substates settings.

PTM

ASCII string

Enable/Disable Precision Time Measurement

Multi Virtual Channel

ASCII string

Enable/Disable Multi Virtual Channel