User Guide
Datasheet, Volume 1 of 2 5
4.3.1 Disabling Unused System Memory Outputs ................................................ 73
4.3.2 DRAM Power Management and Initialization ............................................... 73
4.3.2.1 Initialization Role of CKE............................................................ 74
4.3.2.2 Conditional Self-Refresh ............................................................ 74
4.3.2.3 Dynamic Power-Down................................................................ 75
4.3.2.4 DRAM I/O Power Management .................................................... 75
4.3.3 DDR Electrical Power Gating (EPG) ........................................................... 75
4.3.4 Power Training....................................................................................... 76
4.4 PCI Express* Power Management ........................................................................ 76
4.5 Direct Media Interface (DMI) Power Management .................................................. 76
4.6 Processor Graphics Power Management ................................................................ 77
4.6.1 Memory Power Savings Technologies ........................................................ 77
4.6.1.1 Intel
®
Rapid Memory Power Management (Intel
®
RMPM) ............... 77
4.6.1.2 Intel
®
Smart 2D Display Technology (Intel
®
S2DDT)..................... 77
4.6.2 Display Power Savings Technologies ......................................................... 77
4.6.2.1 Intel
®
(Seamless & Static) Display Refresh Rate
Switching (DRRS) with eDP* Port................................................ 77
4.6.2.2 Intel
®
Automatic Display Brightness............................................ 77
4.6.2.3 Smooth Brightness.................................................................... 78
4.6.2.4 Intel
®
Display Power Saving Technology (Intel
®
DPST) 6.0 ............ 78
4.6.2.5 Panel Self-Refresh 2 (PSR 2) ...................................................... 78
4.6.2.6 Low-Power Single Pipe (LPSP) .................................................... 78
4.6.3 Processor Graphics Core Power Savings Technologies .................................. 79
4.6.3.1 Intel
®
Graphics Dynamic Frequency ............................................ 79
4.6.3.2 Intel
®
Graphics Render Standby Technology (Intel
®
GRST) ............ 79
4.6.3.3 Dynamic FPS (DFPS) ................................................................. 79
4.7 Voltage Optimization ......................................................................................... 79
5 Thermal Management .............................................................................................. 80
5.1 Processor Thermal Management .......................................................................... 80
5.1.1 Thermal Considerations........................................................................... 80
5.1.2 Intel
®
Turbo Boost Technology 2.0 Power Monitoring .................................. 81
5.1.3 Intel
®
Turbo Boost Technology 2.0 Power Control ....................................... 81
5.1.3.1 Package Power Control .............................................................. 81
5.1.3.2 Platform Power Control .............................................................. 82
5.1.3.3 Turbo Time Parameter (Tau) ...................................................... 83
5.1.4 Configurable TDP (cTDP) and Low-Power Mode........................................... 83
5.1.4.1 Configurable TDP ...................................................................... 83
5.1.4.2 Low-Power Mode ...................................................................... 84
5.1.5 Thermal Management Features ................................................................ 84
5.1.5.1 Adaptive Thermal Monitor .......................................................... 84
5.1.5.2 Digital Thermal Sensor .............................................................. 87
5.1.5.3 PROCHOT# Signal..................................................................... 87
5.1.5.4 Bi-Directional PROCHOT# .......................................................... 88
5.1.5.5 Voltage Regulator Protection using PROCHOT# ............................. 88
5.1.5.6 Thermal Solution Design and PROCHOT# Behavior ........................ 88
5.1.5.7 Low-Power States and PROCHOT# Behavior ................................. 89
5.1.5.8 THERMTRIP# Signal .................................................................. 89
5.1.5.9 Critical Temperature Detection ................................................... 89
5.1.5.10 On-Demand Mode ..................................................................... 89
5.1.5.11 MSR Based On-Demand Mode..................................................... 89
5.1.5.12 I/O Emulation-Based On-Demand Mode ....................................... 90
5.1.6 Intel
®
Memory Thermal Management........................................................ 90
5.1.7 Scenario Design Power (SDP)................................................................... 90
5.2 Thermal and Power Specifications........................................................................ 91
5.2.1 S-Processor Line Thermal and Power Specifications..................................... 92
5.2.1.1 Thermal Profile for PCG 2015D Processor ..................................... 95
5.2.1.2 Thermal Profile for PCG 2015C Processor ..................................... 96