Processor—Contents
4.2
Processor Core Power Management.........................................................................
50
4.2.1 Enhanced Intel® SpeedStep® Technology Key Features..................................
4.2.2 Low-Power Idle States...............................................................................
51
4.2.3 Requesting Low-Power Idle States...............................................................
52
4.2.4 Core C-State Rules....................................................................................
53
4.2.5 Package C-States......................................................................................
54
4.3
Integrated Memory Controller (IMC) Power Management............................................
58
4.3.1 Disabling Unused System Memory Outputs...................................................
4.3.2 DRAM Power Management and Initialization..................................................
4.3.2.1 Initialization Role of CKE................................................................
59
4.3.2.2 Conditional Self-Refresh.................................................................
60
4.3.2.3 Dynamic Power-Down....................................................................
4.3.2.4 DRAM I/O Power Management........................................................
4.3.3 DRAM Running Average Power Limitation (RAPL) .........................................
4.3.4 DDR Electrical Power Gating (EPG)..............................................................
61
4.4
PCI Express* Power Management............................................................................
4.5
Direct Media Interface (DMI) Power Management......................................................
4.6
Graphics Power Management..................................................................................
4.6.1 Intel® Rapid Memory Power Management (Intel® RMPM)................................
4.6.2 Graphics Render C-State............................................................................
4.6.3 Intel® Graphics Dynamic Frequency............................................................
5.0 Thermal Management.................................................................................................
63
5.1
Thermal Metrology................................................................................................
64
5.2
Fan Speed Control Scheme with Digital Thermal Sensor (DTS) 1.1..............................
5.3
Fan Speed Control Scheme with Digital Thermal Sensor (DTS) 2.0..............................
66
5.4
Intel® Xeon® Processor E3-1200 v3 Product Family Thermal Specifications...................
67
5.5
Processor Temperature..........................................................................................
69
5.6
Adaptive Thermal Monitor......................................................................................
5.7
THERMTRIP# Signal..............................................................................................
72
5.8
Digital Thermal Sensor..........................................................................................
73
5.8.1 Digital Thermal Sensor Accuracy (Taccuracy)................................................
5.9
Intel® Turbo Boost Technology Thermal Considerations..............................................
74
5.9.1 Intel® Turbo Boost Technology Power Control and Reporting..........................
5.9.2 Package Power Control..............................................................................
75
5.9.3 Turbo Time Parameter...............................................................................
6.0 Signal Description.......................................................................................................
77
6.1
System Memory Interface Signals...........................................................................
6.2
Memory Reference and Compensation.....................................................................
79
6.3
Reset and Miscellaneous Signals.............................................................................
80
6.4
PCI Express*-Based Interface Signals......................................................................
81
6.5
Display Interface Signals.......................................................................................
6.6
Direct Media Interface (DMI)..................................................................................
82
6.7
Phase Locked Loop (PLL) Signals.............................................................................
6.8
Testability Signals.................................................................................................
6.9
Error and Thermal Protection Signals.......................................................................
83
6.10 Power Sequencing...............................................................................................
84
6.11 Processor Power Signals.......................................................................................
6.12 Sense Pins.........................................................................................................
6.13 Ground and Non-Critical to Function (NCTF) Signals.................................................
85
Intel® Xeon® Processor E3-1200 v3 Product Family
Datasheet – Volume 1 of 2
June 2013
4
Order No.: 328907-001
