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Intel® Desktop Board DQ77KB Technical Product Specification June 2012 Part Number: G54942-002 The Intel Desktop Board DQ77KB may contain design defects or errors known as errata that may cause the product to deviate from published specifications. Current characterized errata are documented in the Intel Desktop Board DQ77KB Specification Update.

Section	Page
Intel® Desktop Board DQ77KB Technical Product Specification	1
Revision History	2
Board Identification Information	3
Specification Changes or Clarifications	3
Errata	3
Preface	5
Contents	7
1 Product Description	13
1.1 Overview	13
1.1.1 Feature Summary	13
1.1.2 Board Layout (Top)	15
1.1.3 Board Layout (Bottom)	17
1.1.4 Block Diagram	18
1.2 Online Support	19
1.3 Processor	19
1.3.1 Graphics Subsystem	20
1.4 System Memory	21
1.4.1 Memory Configurations	22
1.5 Intel® Q77 Express Chipset	24
1.5.1 Direct Media Interface (DMI)	24
1.5.2 Display Interfaces	24
1.5.3 USB	29
1.5.4 SATA Interfaces	29
1.6 Real-Time Clock Subsystem	30
1.7 Legacy I/O Controller	30
1.8 Audio Subsystem	31
1.8.1 Audio Subsystem Software	31
1.8.2 Audio Connectors and Headers	32
1.9 LAN Subsystem	34
1.9.1 Intel® 82579LM Gigabit Ethernet Controller and Intel® 82574L Gigabit Ethernet Controller	34
1.9.2 LAN Subsystem Software	35
1.9.3 RJ-45 LAN Connectors with Integrated LEDs	35
1.10 Hardware Management Subsystem	36
1.10.1 Hardware Monitoring	36
1.10.2 Fan Monitoring	36
1.10.3 Chassis Intrusion and Detection	36
1.10.4 Thermal Monitoring	37
1.11 Intel® Security and Manageability Technologies	38
1.11.1 Intel® vPro™ Technology	38
1.11.2 Intel Small Business Technology	41
1.11.3 Intel® Management Engine (Intel® ME) Software and Drivers	42
1.12 Power Management	43
1.12.1 ACPI	43
1.12.2 Hardware Support	45
2 Technical Reference	49
2.1 Memory Resources	49
2.1.1 Addressable Memory	49
2.1.2 Memory Map	51
2.2 Connectors and Headers	51
2.2.1 Back Panel Connectors	52
2.2.2 Connectors and Headers (Top)	53
2.2.3 Connectors and Headers (Bottom)	55
2.3 I/O Shields	67
2.4 Jumper Block	69
2.5 Intel® Management Engine BIOS Extension (Intel® MEBX) Reset Header	70
2.6 Mechanical Considerations	72
2.6.1 Form Factor	72
2.7 Electrical Considerations	74
2.7.1 Power Supply Considerations	74
2.7.2 Fan Header Current Capability	76
2.7.3 PCI Express Add-in Card Considerations	76
2.8 Thermal Considerations	76
2.9 Reliability	79
2.10 Environmental	79
3 Overview of BIOS Features	81
3.1 Introduction	81
3.2 BIOS Flash Memory Organization	82
3.3 Resource Configuration	82
3.3.1 PCI Express Autoconfiguration	82
3.4 System Management BIOS (SMBIOS)	83
3.5 Legacy USB Support	83
3.6 BIOS Updates	84
3.6.1 Language Support	84
3.6.2 Custom Splash Screen	85
3.7 BIOS Recovery	85
3.8 Boot Options	86
3.8.1 Optical Drive Boot	86
3.8.2 Network Boot	86
3.8.3 Booting Without Attached Devices	86
3.8.4 Changing the Default Boot Device During POST	86
3.9 Adjusting Boot Speed	87
3.9.1 Peripheral Selection and Configuration	87
3.9.2 BIOS Boot Optimizations	87
3.10 BIOS Security Features	88
3.11 BIOS Performance Features	89
4 Error Messages and Beep Codes	91
4.1 Speaker	91
4.2 BIOS Beep Codes	91
4.3 Front-panel Power LED Blink Codes	92
4.4 BIOS Error Messages	92
4.5 Port 80h Power On Self Test (POST) Codes	93
5 Regulatory Compliance and Battery Disposal Information	99
5.1 Regulatory Compliance	99
5.1.1 Safety Standards	99
5.1.2 European Union Declaration of Conformity Statement	100
5.1.3 Product Ecology Statements	101
5.1.4 China RoHS	104
5.1.5 EMC Regulations	105
5.1.6 ENERGY STAR* 5.0, e-Standby, and ErP Compliance	107
5.1.7 Regulatory Compliance Marks (Board Level)	108

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Intel® Desktop Board

DQ77KB

Technical Product Specification

June 2012

Part Number:

G54942-002

The Intel Desktop Board DQ77KB may contain design defects or errors known as errata that may cause the product to deviate from published specifications.

Current characterized errata are documented in the Intel Desktop Board DQ77KB Specification Update.