Kontron COMe-bIP2 Instrukcja Użytkownika Strona 42
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COMe-bIP2 / Features and Interfaces
4.11 C-States
New generation platforms include power saving features like SuperLFM, EIST (P-States) or C-States in O/S idle mode.
Activated C-States are able to dramatically decrease power consumption in idle mode by reducing the Core Voltage or
switching of parts of the CPU Core, the Core Clocks or the CPU Cache.
Following C-States are defined:
C-State Description Function
C0 Operating CPU fully turned on
C1 Halt State Stops CPU main internal clocks via software
C1E Enhanced Halt Similar to C1, additionally reduces CPU voltage
C2 Stop Grant Stops CPU internal and external clocks via hardware
C2E Extended Stop Grant Similar to C2, additionally reduces CPU voltage
C3 Deep Sleep Stops all CPU internal and external clocks
C3E Extended Stop Grant Similar to C3, additionally reduces CPU voltage
C4 Deeper Sleep Reduces CPU voltage
C4E Enhanced Deeper Sleep Reduces CPU voltage even more and turns off the memory cache
C6 Deep Power Down Reduces the CPU internal voltage to any value, including 0V
C7 Deep Power Down Similar to C6, additionally LLC (LastLevelCache) is switched off
C-States are usually enabled by default for low power consumption, but active C-States my influence performance
sensitive applications or real-time systems.
» Active C6-State may influence data transfer on external Serial Ports
» Active C7-State may cause lower CPU and Graphics performance
It's recommended to disable C-States / Enhanced C-States in BIOS Setup if any problems occur.
42
- COMe-bIP2 1
- » Table of Contents « 3
- 1 User Information 6
- 1.5 Warranty 7
- 1.6 Technical Support 7
- 2 Introduction 8
- 2.5 COM Express® Benefits 9
- 3 Product Specification 10
- 3.2 Functional Specification 11
- PCH comparison 14
- Graphics Core 15
- Connectivity 16
- Misc Interfaces and Features 17
- Kontron Features 17
- Additional features 17
- Power Features 17
- 3.3 Block Diagram 18
- 3.4 Accessories 19
- 3.5 Electrical Specification 20
- 3.5.5 ATX Mode 21
- 3.5.6 Single Supply Mode 21
- 3.6 Power Control 22
- 3.7.2 Humidity 23
- WEEE Directive 24
- Conformal Coating 24
- Shock & Vibration 25
- 3.9 MTBF 26
- 3.10 Mechanical Specification 27
- 3.11 Module Dimensions 28
- 3.13 Onboard Fan Connector 30
- 4 Features and Interfaces 31
- 4.4 SPI boot 33
- Using an external SPI flash 34
- 4.5 M.A.R.S 35
- 4.6 Fast I2C 36
- Configuration 37
- Time-out events 38
- WDT Signal 38
- 4.10 Speedstep Technology 41
- 4.11 C-States 42
- 4.12 Hyper Threading 43
- 4.14 VID-x 45
- 4.17 Display Configuration 49
- DDI Design Consideration 52
- DVI-I Design Topology 52
- 3 independent Display Support 52
- Requirements 53
- Setup a Multi-monitor system 53
- 4.19 Intel® vPro™ technology 54
- 5 System Resources 56
- 5.2 Memory Area 57
- 5.3 I/O Address Map 57
- 5.5 I2C Bus 58
- 5.6 JILI I2C Bus 58
- 5.7 SDVO I2C Bus 58
- 6 Connectors 60
- 7 Pinout List 61
- 7.2 Connector X1A Row A 62
- COMe-bIP2 / Pinout List 63
- 7.3 Connector X1A Row B 64
- 7.4 Connector X1B Row C 66
- 7.5 Connector X1B Row D 68
- 8 BIOS Operation 70
- 8.3 Setup Guide 72
- 8.4 POST Codes 72
- Item Specific Help Window 73
- General Help Window 73
- 8.5 BIOS Setup 74
- Platform Information 75
- 8.5.2 Advanced 76
- PCI Subsystem Settings 77
- ACPI Settings 78
- Trusted Computing 79
- CPU Configuration 80
- CPU Information 81
- Miscellaneous 82
- Onboard I2C Bus Configuration 83
- Watchdog 84
- Smart Battery Configuration 85
- Battery Information 86
- Generic LPC Decode Ranges 87
- Thermal Configuration 88
- Passive Cooling 89
- Intel Fast Flash Standby 90
- PCH-FW Configuration 91
- Firmware Update Configuration 93
- Super IO Configuration 95
- Serial Port 1 Configuration 96
- Serial Port 2 Configuration 97
- Parallel Port Configuration 98
- H/W Monitor 99
- COMe-bIP2 / BIOS Operation 100
- Console Redirection Settings 102
- Intel ICC 103
- Clock Spread Spectrum 104
- CPU PPM Configuration 105
- 8.5.3 Chipset 106
- PCH-IO Configuration 107
- LAN Configuration 108
- SATA Configuration 109
- HDA Configuration 111
- USB Configuration 112
- PCI Express Configuration 113
- SystemAgent Configuration 115
- Graphics Configuration 116
- LCD Control 117
- - DVI-I' 118
- Memory Configuration 120
- Custom Memory Profile Control 121
- GT - Power Management Control 122
- 8.5.4 Boot 123
- Boot Option Priority 124
- 8.5.5 Security 125
- Set HDD Password 126
- 8.5.6 Save & Exit 127
- Corporate Offices 128
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