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Intel DN2800MT Technical Product Specification for Intel Desktop Board DN2800M - Page 50

Signal Tables for the Connectors and Headers

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Intel Desktop Board DN2800MT Technical Product Specification 2.2.3.1 Signal Tables for the Connectors and Headers Table 15. Front Panel Audio Header for Intel HD Audio Pin Signal Name Description 1 PORT_1L Analog Port 1 - Left channel (Microphone) 2 GND Ground 3 PORT_1R Analog Port 1 - Right channel (Microphone) 4 PRESENCE# Active low signal that signals BIOS that an Intel HD Audio dongle is connected to the analog header. PRESENCE#=0 when an Intel HD Audio dongle is connected 5 PORT_2R Analog Port 2 - Right channel (Headphone) 6 SENSE1_RETURN Jack detection return for front panel (JACK1) 7 SENSE_SEND Jack detection sense line from the Intel HD Audio CODEC jack detection resistor network 8 KEY No pin 9 PORT_2L Analog Port 2 - Left channel (Headphone) 10 SENSE2_RETURN Jack detection return for front panel (JACK2) Table 16. Front Panel Audio Header for AC'97 Audio Pin Signal Name Description 1 MIC Front panel microphone input signal (biased when supporting stereo microphone) 2 AUD_GND Ground used by analog audio circuits 3 MIC_BIAS Microphone power / additional MIC input for stereo microphone support 4 PRESENCE# Active low signal that signals BIOS that an Intel HD Audio dongle is connected to the analog header. PRESENCE#=0 when an Intel HD Audio dongle is connected 5 FP_OUT_R Right channel audio signal to front panel (headphone drive capable) 6 AUD_GND Ground used by analog audio circuits 7 RESERVED Reserved 8 KEY No pin 9 FP_OUT_L Left channel audio signal to front panel (headphone drive capable) 10 AUD_GND Ground used by analog audio circuits 50

Section	Page
Intel® Desktop Board DN2800MT Technical Product Specification	1
Revision History	2
Disclaimer	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
1.4 System Memory	20
1.5 Intel® NM10 Express Chipset	22
1.6 Graphics Subsystem	22
1.6.1 Integrated Graphics	22
1.6.2 Flat Panel Display Interfaces	24
1.6.3 USB	27
1.7 SATA Interfaces	28
1.7.1 AHCI Mode	28
1.8 Real-Time Clock Subsystem	29
1.9 Legacy I/O Controller	29
1.9.1 Serial Ports	29
1.9.2 Parallel Port	29
1.10 Audio Subsystem	30
1.10.1 Audio Subsystem Software	31
1.10.2 Audio Subsystem Components	31
1.11 LAN Subsystem	33
1.11.1 Intel® 82574L Gigabit Ethernet Controller	33
1.11.2 LAN Subsystem Software	34
1.11.3 RJ-45 LAN Connector with Integrated LEDs	34
1.12 Hardware Management Subsystem	35
1.12.1 Hardware Monitoring	35
1.12.2 Fan Monitoring	35
1.12.3 Thermal Monitoring	36
1.13 Power Management	37
1.13.1 ACPI	37
1.13.2 Hardware Support	39
2 Technical Reference	43
2.1 Memory Resources	43
2.1.1 Addressable Memory	43
2.1.2 Memory Map	45
2.2 Connectors and Headers	45
2.2.1 Back Panel Connectors	46
2.2.2 Connectors and Headers (Top)	47
2.2.3 Connectors and Headers (Bottom)	49
2.3 I/O Shields	63
2.4 Jumper Block	64
2.5 Mechanical Considerations	66
2.5.1 Form Factor	66
2.5.2 Board 3D View	68
2.6 Electrical Considerations	69
2.6.1 Power Supply Considerations	69
2.6.2 Fan Header Current Capability	71
2.6.3 PCI Express* Add-in Card Considerations	71
2.7 Thermal Considerations	71
2.7.1 Chassis Design Guideline	73
2.8 Reliability	74
2.9 Environmental	75
3 Overview of BIOS Features	77
3.1 Introduction	77
3.2 BIOS Flash Memory Organization	78
3.3 System Management BIOS (SMBIOS)	79
3.4 Legacy USB Support	79
3.5 BIOS Updates	80
3.5.1 Language Support	80
3.5.2 Custom Splash Screen	81
3.6 BIOS Recovery	81
3.7 Boot Options	82
3.7.1 Optical Drive Boot	82
3.7.2 Network Boot	82
3.7.3 Booting Without Attached Devices	82
3.7.4 Changing the Default Boot Device During POST	82
3.8 Adjusting Boot Speed	83
3.8.1 Peripheral Selection and Configuration	83
3.9 Hard Disk Drive Password Security Feature	84
3.10 BIOS Security Features	85
4 Error Messages and Beep Codes	87
4.1 Speaker	87
4.2 BIOS Beep Codes	87
4.3 Front-panel Power LED Blink Codes	88
4.4 BIOS Error Messages	88
4.5 Port 80h POST Codes	89
5 Regulatory Compliance and Battery Disposal Information	95
5.1 Regulatory Compliance	95
5.1.1 Safety Standards	95
5.1.2 European Union Declaration of Conformity Statement	96
5.1.3 Product Ecology Statements	97
5.1.4 EMC Regulations	99
5.1.5 ENERGY STAR* 5.0, e-Standby, and ErP Compliance	102
5.1.6 Regulatory Compliance Marks (Board Level)	103