743844-015.pdf - 第78页

Figure 17. Package Power Control SOC/Pla tf orm P ow er Limiting Knobs Op tions Visual PL4 1 PL1/PsysPL1 1 PL2/PsysPL2 1 Å Po wer c ould sustain her e up to ~100s sec onds (Av erage po wer) Time Power PL3 1 /PsysPL3 1 Å …

• The processor may exceed the Processor Base Power (a.k.a TDP) for short

durations to utilize any available thermal capacitance within the thermal solution.

The duration and time of such operation can be limited by platform runtime

configurable registers within the processor.

• Graphics peak frequency operation is based on the assumption of only one of the

graphics domains (GT/GTx) being active. This definition is similar to the IA core

Turbo concept, where peak turbo frequency can be achieved when only one IA

core is active. Depending on the workload being applied and the distribution

across the graphics domains the user may not observe peak graphics frequency

for a given workload or benchmark.

• Thermal solutions and platform cooling that is designed to less than thermal

design guidance may experience thermal and performance issues.

NOTE

Intel

Turbo Boost Technology 2.0 availability may vary between the different SKUs.

Package Power Control

The package power control settings of PL1, PL2, PL3, PL4, and Tau allow the designer

to configure Intel

Turbo Boost Technology 2.0 to match the platform power delivery

and package thermal solution limitations.

• Power Limit 1 (PL1): A threshold for average power that will not exceed -

recommend to set to equal Processor Base Power (a.k.a TDP). PL1 should not be

set higher than thermal solution cooling limits.

• Power Limit 2 (PL2): A threshold that if exceeded, the PL2 rapid power limiting

algorithms will attempt to limit the spike above PL2.

• Power Limit 3 (PL3): A threshold that if exceeded, the PL3 rapid power limiting

algorithms will attempt to limit the duty cycle of spikes above PL3 by reactively

limiting frequency. This is an optional setting

• Power Limit 4 (PL4): A limit that will not be exceeded, the PL4 power limiting

algorithms will preemptively limit frequency to prevent spikes above PL4.

• Turbo Time Parameter (Tau): An averaging constant used for PL1 exponential

weighted moving average (EWMA) power calculation.

NOTES

1. Implementation of Intel

Turbo Boost Technology 2.0 only requires configuring

PL1, PL1, Tau and PL2.

2. The Turbo Implementation guide and BIOS Specification.

3. PL3 and PL4 are disabled by default.

4. The Intel Dynamic Tuning (DTT) is recommended for performance improvement in

mobile platforms. Dynamic Tuning is configured by system manufacturers

dynamically optimizing the processor power based on the current platform thermal

and power delivery conditions. Contact Intel Representatives for enabling details.

4.1.1.1

Thermal Management—Intel

Core

™

, Xeon

™

6300 And Xeon

™

E 2400 Processors

Generation Intel

Core

™

, Intel

Core

™

Generation, Intel

Core

™

Processor (Series 1) and (Series 2), Intel

Xeon

™

2400 Processor and Intel

Xeon

™

6300 Processor

May 2025 Datasheet, Volume 1 of 2

Doc. No.: 743844, Rev.: 015 77

Figure 17. Package Power Control

SOC/Platform Power Limiting Knobs Options Visual

PL4

PL1/PsysPL1

PL2/PsysPL2

Å Power could

sustain here up to

~100s seconds

(Average power)

Time

Power

PL3

/PsysPL3

Å Power could

sustain here

forever

Note1: Optional Feature, default is disabled

Power in this region can be configured

via PL1 Tau/PsysPL1 Tau

Power

could

peak

for up

10ms

Duty cycles of power peaks in

this region can be configurable

via PL3/PsysPL3

Platform Power Control

The processor introduces Psys (Platform Power) to enhance processor power

management. The Psys signal needs to be sourced from a compatible charger circuit

and routed to the IMVP9.1 (voltage regulator). This signal will provide the total

thermally relevant platform power consumption (processor and rest of platform) via

SVID to the processor.

When the Psys signal is properly implemented, the system designer can utilize the

package power control settings of PsysPL1, PsysPL1 Tau , PsysPL2, and PsysPL3 for

additional manageability to match the platform power delivery and platform thermal

solution limitations for Intel

Turbo Boost Technology 2.0. The operation of the

PsysPL1, PsysPL1 Tau , PsysPL2 and PsysPL3 are analogous to the processor power

limits described in Package Power Control on page 77.

• Platform Power Limit 1 (PsysPL1): A threshold for average platform power

that will not be exceeded - recommend to set to equal platform thermal capability.

• Platform Power Limit 2 (PsysPL2): A threshold that if exceeded, the PsysPL2

rapid power limiting algorithms will attempt to limit the spikes above PsysPL2.

• Platform Power Limit 3 (PsysPL3): A threshold that if exceeded, the PsysPL3

rapid power limiting algorithms will attempt to limit the duty cycle of spikes above

PsysPL3 by reactively limiting frequency.

• PsysPL1 Tau: An averaging constant used for PsysPL1 exponential weighted

moving average (EWMA) power calculation.

4.1.1.2

Intel

Core

™

, Xeon

™

6300 And Xeon

™

E 2400 Processors—Thermal Management

Generation Intel

Core

™

, Intel

Core

™

Generation, Intel

Core

™

Processor (Series 1) and (Series 2), Intel

Xeon

™

2400 Processor and Intel

Xeon

™

6300 Processor

Datasheet, Volume 1 of 2 May 2025

78 Doc. No.: 743844, Rev.: 015

• The Psys signal and associated power limits / Tau are optional for the system

designer and disabled by default.

• The Psys data will not include power consumption for charging.

• The Intel Dynamic Tuning (DTT) is recommended for performance improvement in

mobile platforms. Dynamic Tuning is configured by system manufacturers

dynamically optimizing the processor power based on the current platform thermal

and power delivery conditions. Contact Intel Representatives for enabling details.

Turbo Time Parameter (Tau)

Turbo Time Parameter (Tau) is a mathematical parameter (units of seconds) that

controls the Intel

Turbo Boost Technology 2.0 algorithm. During a maximum power

turbo event, the processor could sustain PL2 for a duration longer than the Turbo Time

Parameter. If the power value and/or Turbo Time Parameter is changed during

runtime, it may take some time based on the new Turbo Time Parameter level for the

algorithm to settle at the new control limits. The time varies depending on the

magnitude of the change, power limits and other factors. There is an individual Turbo

Time Parameter associated with Package Power Control and Platform Power Control.

Assured Power (cTDP)

Assured Power (cTDP) form a design option where the processor's behavior and

package Processor Base Power (a.k.a TDP) are dynamically adjusted to a desired

system performance and power envelope. Assured Power (cTDP) and Low-Power Mode

technologies offer opportunities to differentiate system design while running active

workloads on select processor SKUs through scalability, configuration and adaptability.

The scenarios or methods by which each technology is used are customizable but

typically involve changes to PL1 and associated frequencies for the scenario with a

resultant change in performance depending on system's usage. Either technology can

be triggered by (but are not limited to) changes in OS power policies or hardware

events such as docking a system, flipping a switch or pressing a button. Assured

Power (cTDP) is designed to be configured dynamically and do not require an

operating system reboot.

NOTE

Assured Power (cTDP) is not battery life improvement technologies.

Assured Power (cTDP)

NOTE

Assured Power (cTDP) availability may vary between the different SKUs.

With Assured Power (cTDP), the processor is capable of altering the maximum

sustained power with an alternate processor IA core base frequency. Assured Power

(cTDP) allows operation in situations where extra cooling is available or situations

where a cooler and quieter mode of operation is desired.

cTDP consists of three modes as shown in the following table.

4.1.1.3

4.1.2

4.1.2.1

Thermal Management—Intel

Core

™

, Xeon

™

6300 And Xeon

™

E 2400 Processors

Generation Intel

Core

™

, Intel

Core

™

Generation, Intel

Core

™

Processor (Series 1) and (Series 2), Intel

Xeon

™

2400 Processor and Intel

Xeon

™

6300 Processor

May 2025 Datasheet, Volume 1 of 2

Doc. No.: 743844, Rev.: 015 79