Intel BX80646I74770K manual DRAM Power Management and Initialization, No power-down CKE disable

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4.3.2DRAM Power Management and Initialization

Power Management—Processor

•Reduced possible overshoot/undershoot signal quality issues seen by the processor I/O buffer receivers caused by reflections from potentially un- terminated transmission lines.

When a given rank is not populated, the corresponding chip select and CKE signals are not driven.

At reset, all rows must be assumed to be populated, until it can be determined that the rows are not populated. This is due to the fact that when CKE is tri-stated with an SO-DIMM present, the SO-DIMM is not ensured to maintain data integrity.

CKE tristate should be enabled by BIOS where appropriate, since at reset all rows must be assumed to be populated.

4.3.2DRAM Power Management and Initialization

The processor implements extensive support for power management on the SDRAM interface. There are four SDRAM operations associated with the Clock Enable (CKE) signals, which the SDRAM controller supports. The processor drives four CKE pins to perform these operations.

The CKE is one of the power-save means. When CKE is off, the internal DDR clock is disabled and the DDR power is reduced. The power-saving differs according to the selected mode and the DDR type used. For more information, refer to the IDD table in the DDR specification.

The processor supports three different types of power-down modes in package C0. The different power-down modes can be enabled through configuring "PM_PDWN_config_0_0_0_MCHBAR". The type of CKE power-down can be configured through PDWN_mode (bits 15:12) and the idle timer can be configured through PDWN_idle_counter (bits 11:0). The different power-down modes supported are:

•No power-down (CKE disable)

•Active power-down (APD): This mode is entered if there are open pages when de-asserting CKE. In this mode the open pages are retained. Power-saving in this mode is the lowest. Power consumption of DDR is defined by IDD3P. Exiting this mode is defined by tXP – small number of cycles. For this mode, DRAM DLL must be on.

•PPD/DLL-off:In this mode the data-in DLLs on DDR are off. Power-saving in this mode is the best among all power modes. Power consumption is defined by IDD2P1. Exiting this mode is defined by tXP, but also tXPDLL (10–20 according to DDR type) cycles until first data transfer is allowed. For this mode, DRAM DLL must be off.

The CKE is determined per rank, whenever it is inactive. Each rank has an idle- counter. The idle-counter starts counting as soon as the rank has no accesses, and if it expires, the rank may enter power-down while no new transactions to the rank arrives to queues. The idle-counter begins counting at the last incoming transaction arrival.

It is important to understand that since the power-down decision is per rank, the IMC can find many opportunities to power down ranks, even while running memory intensive applications; the savings are significant (may be few Watts, according to the DDR specification). This is significant when each channel is populated with more ranks.

Desktop 4th Generation Intel® Core™ Processor Family, Desktop Intel® Pentium® Processor Family, and Desktop Intel® Celeron® Processor Family

December 2013

Datasheet – Volume 1 of 2

Order No.: 328897-004

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Contents December Datasheet - Volume 1 ofDatasheet - Volume 1 of 2 4.0 Power Management ContentsRevision History 1.0 IntroductionProcessor-Contents 6.0 Signal Description5.0 Thermal Management 8.0 Package Mechanical Specifications 7.0 Electrical Specifications9.0 Processor Ball and Signal Information 7.8.1 Platform Environment Control Interface PECI DC CharacteristicsFigures Tables-Processor TablesProcessor-Tables Revision History-Processor Revision HistoryProcessor-Introduction 1.0 Introduction1.1 Supported Technologies Figure 1. Platform Block DiagramProcessor Platform Controller Hub PCH1.2 Interfaces 1.3 Power Management SupportProcessor Core System1.5 Package Support 1.4 Thermal Management Support1.6 Terminology Terminologywith Virtual Machine Monitor software, enables multiple, robust independent software Term Related Documents 1.7 Related DocumentsDocument Number / Locationhttp specificationsproducts/processor manuals/index.htm2.1 System Memory Interface 2.0 Interfaces2.1.1 System Memory Technology Supported Supported UDIMM Module ConfigurationsProcessor DIMM Support by Product 2.1.2 System Memory Timing Support Supported SO-DIMM Module Configurations AIO OnlyDDR3 / DDR3L System Memory Timing Support Single-Channel Mode 2.1.3 System Memory Organization ModesDual-Channel Mode - Intel Flex Memory Technology Mode Figure 2. Intel Flex Memory Technology OperationsJust-in-Time Command Scheduling 2.1.3.2 Intel Fast Memory Access Intel FMA Technology EnhancementsCommand Overlap 2.1.3.1 System Memory Frequency2.2 PCI Express* Interface Table 7. PCI Express* Supported Configurations in Desktop Products2.2.1 PCI Express* Support 2.1.3.3 Data Scrambling2.2.2 PCI Express* Architecture 2.2.3 PCI Express* Configuration MechanismPCI Express* Port PCI Express* Related Register Structures in the ProcessorPCI Express* Lanes Connection Figure 4. PCI Express* Typical Operation 16 Lanes Mapping 2.3 Direct Media Interface DMI1 X 4 Controller 1 X 8 ControllerDMI Link Down DMI Error Flow2.5 Processor Graphics Controller GT 2.4 Processor Graphics2.5.1 3D and Video Engines for Graphics Processing Figure 5. Processor Graphics Controller Unit Block Diagram3D Pipeline 3D Engine Execution UnitsGeometry Shader GS Stage Vertex Shader VS StageClip Stage Strips and Fans SF Stage2.5.2 Multi Graphics Controllers Multi-Monitor Support 2.6 Digital Display Interface DDILogical 128-Bit Fixed BLT and 256 Fill Engine Figure 6. Processor Display Architecture Sink Device Source DeviceDisplayPort Figure 7. DisplayPort* OverviewHDMI Sink HDMI SourceFigure 8. HDMI* Overview HDMI Txembedded DisplayPort Multiple Display ConfigurationsIntegrated Audio Table 8. Processor Supported Audio Formats over HDMI*and DisplayPortHigh-bandwidth Digital Content Protection HDCP Valid Three Display Configurations through the Processor2.8 Platform Environmental Control Interface PECI 2.7 Intel Flexible Display Interface Intel FDI2.8.1 PECI Bus Architecture PECI Figure 9. PECI Host-Clients Connection ExampleHost / Originator PECI Client3.1 Intel Virtualization Technology Intel VT 3.0 TechnologiesIntel VT-x Objectives ing=VTIntel VT-x Features Intel VT-d Objectives Figure 10. Device to Domain Mapping Structures Intel VT-d Features3.2 Intel Trusted Execution Technology Intel TXT 3.3 Intel Hyper-Threading Technology Intel HT Technology 3.5 Intel Advanced Vector Extensions 2.0 Intel AVX2 3.4 Intel Turbo Boost TechnologyIntel Turbo Boost Technology 2.0 Frequency PCLMULQDQ Instruction 3.6 Intel Advanced Encryption Standard New Instructions Intel AES-NIIntel Secure Key 3.8 Intel 64 Architecture x2APIC 3.10 Execute Disable Bit 3.9 Power Aware Interrupt Routing PAIR3.11 Supervisor Mode Execution Protection SMEP Figure 11. Processor Power States 4.0 Power ManagementNote Power states availability may vary between the different SKUs S0 - Processor Fully powered on full on mode / connected standby modeSystem States 4.1 Advanced Configuration and Power Interface ACPI States SupportedProcessor Core / Package State Support Integrated Memory Controller States4.2.1 Enhanced Intel SpeedStep Technology Key Features 4.2 Processor Core Power ManagementDirect Media Interface DMI States G, S, and C Interface State CombinationsFigure 12. Idle Power Management Breakdown of the Processor Cores 4.2.2 Low-Power Idle StatesThread Core 0 StateCoordination of Thread Power States at the Core Level 4.2.3 Requesting Low-Power Idle StatesFigure 13. Thread and Core C-State Entry and Exit Core C0 State 4.2.4 Core C-State RulesCore C1/C1E State Core C3 StateCore C6 State 4.2.5 Package C-StatesCore C7 State C-State Auto-DemotionCoordination of Core Power States at the Package Level Package C0 State Figure 14. Package C-State Entry and ExitPackage C1/C1E State Package C3 State Package C2 StatePackage C6 State Package C7 StateDeepest Package C-State Available 4.2.6 Package C-States and Display Resolutions4.3.1 Disabling Unused System Memory Outputs 4.3 Integrated Memory Controller IMC Power ManagementNo power-down CKE disable 4.3.2 DRAM Power Management and Initialization4.3.2.1 Initialization Role of CKE 4.3.2.3 Dynamic Power-Down4.3.2.2 Conditional Self-Refresh 4.5 Direct Media Interface DMI Power Management 4.4 PCI Express* Power Management4.3.3 DRAM Running Average Power Limitation RAPL 4.3.4 DDR Electrical Power Gating EPG4.6.1 Intel Rapid Memory Power Management Intel RMPM 4.6 Graphics Power Management4.6.2 Graphics Render C-State 4.6.3 Intel Graphics Dynamic FrequencyThermal Management-Processor 5.0 Thermal Management5.1 Desktop Processor Thermal Profiles Desktop Processor Thermal SpecificationsProcessor-Thermal Management ProfileTCASE = 0.33 * Power + 5.1.1 Processor PCG 2013D Thermal ProfileTTV Power W Case5.1.2 Processor PCG 2013C Thermal Profile 5.1.3 Processor PCG 2013B Thermal Profile 5.1.4 Processor PCG 2013A Thermal Profile 5.3 Fan Speed Control Scheme with Digital Thermal Sensor DTS 5.2 Thermal MetrologyMeasure TCASE at the geometric center of the package 37.5 37.5ΨCA = TCASE-MAX - TAMBIENT-TARGET / TDP Figure 20. Digital Thermal Sensor DTS 1.1 Definition Points5.4 Fan Speed Control Scheme with Digital Thermal Sensor DTS Figure 21. Digital Thermal Sensor DTS Thermal Profile Definition 5.5 Processor TemperatureThermal Margin Slope Frequency Control 5.6 Adaptive Thermal MonitorImmediate Transition to Combined TM1 and TM2 Clock ModulationCritical Temperature Flag PROCHOT# Signal 5.8 Digital Thermal Sensor 5.7 THERMTRIP# Signal5.9 Intel Turbo Boost Technology Thermal Considerations 5.9.1 Intel Turbo Boost Technology Power Control and Reporting5.8.1 Digital Thermal Sensor Accuracy Taccuracy Intel Turbo Boost Technology 2.0 Package Power Control Settings 5.9.2 Package Power Control5.9.3 Turbo Time Parameter Figure 22. Package Power Control6.1 System Memory Interface Signals 6.0 Signal DescriptionSignal Description Buffer Types Memory Channel A SignalsSignal Description-Processor Memory Channel B SignalsMemory Reference and Compensation Signals 6.2 Memory Reference and Compensation SignalsDDR3/DDR3L Reference Voltage This signal is used as System Memory Impedance CompensationReset and Miscellaneous Signals 6.3 Reset and Miscellaneous SignalsCFG3 MSR Privacy Bit Feature CFG65 PCI Express* Bifurcation6.5 Display Interface Signals 6.4 PCI Express*-Based Interface SignalsPCI Express* Graphics Interface Signals Display Interface Signals6.8 Testability Signals 6.7 Phase Locked Loop PLL SignalsPhase Locked Loop PLL Signals Testability Signals6.10 Power Sequencing Signals 6.9 Error and Thermal Protection SignalsError and Thermal Protection Signals Power Sequencing Signals6.12 Sense Signals 6.11 Processor Power Signals6.13 Ground and Non-Critical to Function NCTF Signals Processor Power Signals7.2 Power and Ground Lands 7.0 Electrical Specifications7.1 Integrated Voltage Regulator 7.3 VCC Voltage Identification VIDElectrical Specifications-Processor Table 45. Voltage Regulator VR 12.5 Voltage Identificationcontinued Processor-Electrical Specificationscontinued continued Electrical Specifications-Processorcontinued continued 7.5 Signal Groups 7.4 Reserved or Unused SignalsSignal Groups DDR3 / DDR3L Reference Voltage Signals DDR3 / DDR3L Data SignalsPower / Ground / Other DDR3 / DDR3L Compensation7.7 DC Specifications 7.6 Test Access Port TAP ConnectionPCI Express* Graphics Digital Media Interface DMI7.8 Voltage and Current Specifications Electrical Specifications-Processor VCCIOOUT, VCOMPOUT, and VCCIOTERM DDR3 / DDR3L Signal Group DC SpecificationsDigital Display Interface Group DC Specifications CMOS Signal Group DC Specifications embedded DisplayPort* eDP* Group DC SpecificationsGTL Signal Group and Open Drain Signal Group DC Specifications PCI Express* DC Specifications 7.8.1 Platform Environment Control Interface PECI DC CharacteristicsFigure 23. Input Device Hysteresis 7.8.2 Input Device Hysteresis8.2 Package Loading Specifications 8.0 Package Mechanical SpecificationsFigure 24. Processor Package Assembly Sketch 8.1 Processor Component Keep-Out Zone8.5 Processor Mass Specification 8.4 Package Insertion SpecificationsProcessor Loading Specifications 8.3 Package Handling Guidelines8.8 Processor Land Coordinates 8.7 Processor MarkingsProcessor Materials Figure 25. Processor Top-Side MarkingsProcessor Storage Specifications 8.9 Processor Storage SpecificationsFigure 26. Processor Package Land Coordinates TIMEsustained storage RHsustained storageProcessor Ball List by Signal Name 9.0 Processor Ball and Signal InformationProcessor Ball and Signal Information-Processor Processor-Processor Ball and Signal Information Signal Name Signal NameSignal Name Ball #Signal Name Signal NameSignal Name Ball #Signal Name AU20 Signal Name Signal NameSignal Name Ball #Signal Name Signal NameSignal Name Ball #Signal Name Signal NameSignal Name Ball #Signal Name Signal NameSignal Name Ball #
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BX80633I74960X, BX80646I34130, BX80646I54430, BX80646I74770K, BX80646I74770 specifications

The Intel CM8063701159502, or BX80637I53470, is a powerful CPU designed for modern computing needs. This processor belongs to Intel's 4th generation of Core i5 processors, commonly known as "Haswell". It showcases Intel's commitment to enhancing performance, increasing energy efficiency, and delivering an enriching user experience.

One of the main features of the Intel Core i5-3470 is its quad-core architecture. This allows the processor to handle multiple threads simultaneously, making it adept at multitasking and running demanding applications efficiently. With a base clock speed of 3.2 GHz, it can boost up to 3.6 GHz using Intel’s Turbo Boost technology, providing additional power when needed for intensive tasks like gaming or video editing.

The Intel i5-3470 features Intel's HD Graphics 2500, which offers decent graphics performance for everyday tasks and casual gaming. This integrated graphics solution is capable of delivering high-definition visuals and supports DirectX 11, making it suitable for lightweight gaming experiences without the need for an additional dedicated graphics card.

Another standout characteristic of the BX80637I53470 is its support for Intel Smart Cache, which is an advanced caching technology. It provides a shared cache pool that enhances performance by reducing the time it takes to access frequently used data. This feature, coupled with Intel's instruction set architecture, allows for improved processing agility and efficiency across applications.

The processor is built on a 22nm manufacturing process, which results in reduced power consumption and heat generation compared to its predecessors. It has a thermal design power (TDP) of 77 watts, making it energy efficient while still delivering robust performance. Additionally, the Core i5-3470 supports DDR3 memory, with speeds up to 1600 MHz, enabling quick data retrieval and improved system responsiveness.

Security is another important aspect of the Intel i5-3470, featuring Intel Secure Key and Intel AES New Instructions (AES-NI), which protect sensitive data and enhance encryption performance.

In conclusion, the Intel CM8063701159502, or BX80637I53470, encapsulates modern computing technology with its powerful quad-core performance, integrated graphics, energy efficiency, and robust security features, making it a versatile choice for a wide range of computing tasks. Whether users are engaging in casual gaming, productivity tasks, or multimedia consumption, this processor demonstrates a solid balance of performance and efficiency, providing an excellent computing experience overall.
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