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Intel D848PMB Technical Product Specification - Page 79

System Management BIOS SMBIOS, 5 Legacy USB Support - network driver

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Overview of BIOS Features 3.4 System Management BIOS (SMBIOS) SMBIOS is a Desktop Management Interface (DMI) compliant method for managing computers in a managed network. The main component of SMBIOS is the Management Information Format (MIF) database, which contains information about the computing system and its components. Using SMBIOS, a system administrator can obtain the system types, capabilities, operational status, and installation dates for system components. The MIF database defines the data and provides the method for accessing this information. The BIOS enables applications such as third-party management software to use SMBIOS. The BIOS stores and reports the following SMBIOS information: • BIOS data, such as the BIOS revision level • Fixed-system data, such as peripherals, serial numbers, and asset tags • Resource data, such as memory size, cache size, and processor speed • Dynamic data, such as event detection and error logging Non-Plug and Play operating systems, such as Windows NT*, require an additional interface for obtaining the SMBIOS information. The BIOS supports an SMBIOS table interface for such operating systems. Using this support, an SMBIOS service-level application running on a non-Plug and Play operating system can obtain the SMBIOS information. For information about The Desktop Boards' compliance level with SMBIOS Refer to Section 1.4, page 17 3.5 Legacy USB Support Legacy USB support enables USB devices such as keyboards, mice, and hubs to be used even when the operating system's USB drivers are not yet available. Legacy USB support is used to access the BIOS Setup program, and to install an operating system that supports USB. By default, Legacy USB support is set to Enabled. Legacy USB support operates as follows: 1. When you apply power to the computer, legacy support is disabled. 2. POST begins. 3. Legacy USB support is enabled by the BIOS allowing you to use a USB keyboard to enter and configure the BIOS Setup program and the maintenance menu. 4. POST completes. 5. The operating system loads. While the operating system is loading, USB keyboards and mice are recognized and may be used to configure the operating system. (Keyboards and mice are not recognized during this period if Legacy USB support was set to Disabled in the BIOS Setup program.) 6. After the operating system loads the USB drivers, all legacy and non-legacy USB devices are recognized by the operating system, and Legacy USB support from the BIOS is no longer used. 79

Section	Page
Intel® Desktop Board D848PMB Technical Product Specification	1
Revision History / Disclaimer	2
Preface	3
Intended Audience	3
What This Document Contains	3
Typographical Conventions	3
Notes, Cautions, and Warnings	3
Other Common Notation	4
Contents	5
1 Product Description	11
1.1 Overview	12
1.1.1 Feature Summary	12
1.1.2 Manufacturing Options	13
1.1.3 Board Layout	14
1.1.4 Block Diagram	15
1.2 Online Support	16
1.3 Operating System Support	16
1.4 Design Specifications	17
1.5 Processor	20
1.6 System Memory	21
1.7 Intel® 848P Chipset	23
1.7.1 Universal 0.8 V / 1.5 V AGP 3.0 Connector	23
1.7.2 USB	24
1.7.3 IDE Support	24
1.7.4 Real-Time Clock, CMOS SRAM, and Battery	26
1.8 I/O Controller	26
1.8.1 Serial Port	27
1.8.2 Parallel Port	27
1.8.3 Diskette Drive Controller	27
1.8.4 Keyboard and Mouse Interface	27
1.9 Audio Subsystem	28
1.9.1 Audio Subsystem Software	28
1.9.2 Audio Connectors	28
1.9.3 Realtek ALC202A-based Audio Subsystem (Optional)	29
1.9.4 Intel® Flex 6 Audio Subsystem (Optional)	29
1.10 LAN Subsystem	31
1.10.1 10/100 Mbits/sec LAN Subsystem (Optional)	31
1.10.2 Gigabit LAN Subsystem (Optional)	32
1.10.3 Alert Standard Format (ASF) Support	33
1.10.4 LAN Subsystem Software	33
1.11 Hardware Management Subsystem	33
1.11.1 Hardware Monitoring and Fan Control ASIC	33
1.11.2 Thermal Monitoring	34
1.11.3 Fan Monitoring	35
1.11.4 Chassis Intrusion and Detection	35
1.12 Power Management	35
1.12.1 ACPI	35
1.12.2 Hardware Support	38
2 Technical Reference	43
2.1 Introduction	43
2.2 Memory Map	44
2.3 DMA Channels	44
2.4 Fixed I/O Map	45
2.5 PCI Configuration Space Map	46
2.6 Interrupts	47
2.7 PCI Interrupt Routing Map	48
2.8 Connectors	50
2.8.1 Back Panel Connectors	51
2.8.2 Internal I/O Connectors	52
2.8.3 External I/O Connectors	60
2.9 Jumper Blocks	64
2.9.1 Front Panel Audio Connector/Jumper Block	64
2.9.2 BIOS Setup Configuration Jumper Block	65
2.10 Mechanical Considerations	66
2.10.1 I/O Shield	67
2.11 Electrical Considerations	68
2.11.1 DC Loading	68
2.11.2 Add-in Board Considerations	68
2.11.3 Fan Connector Current Capability	68
2.11.4 Power Supply Considerations	69
2.12 Thermal Considerations	69
2.13 Reliability	72
2.14 Environmental	72
2.15 Regulatory Compliance	73
2.15.1 Safety Regulations	73
2.15.2 EMC Regulations	73
2.15.3 European Union Declaration of Conformity Statement	74
2.15.4 Product Ecology Statements	75
2.15.5 Product Certification Markings (Board Level)	75
3 Overview of BIOS Features	77
3.1 Introduction	77
3.2 BIOS Flash Memory Organization	77
3.3 Resource Configuration	78
3.3.1 PCI Autoconfiguration	78
3.3.2 PCI IDE Support	78
3.4 System Management BIOS (SMBIOS)	79
3.5 Legacy USB Support	79
3.6 BIOS Updates	80
3.6.1 Language Support	80
3.6.2 Custom Splash Screen	81
3.7 Recovering BIOS Data	81
3.8 Boot Options	82
3.8.1 CD-ROM Boot	82
3.8.2 Network Boot	82
3.8.3 Booting Without Attached Devices	82
3.8.4 Changing the Default Boot Device During POST	82
3.9 Fast Booting Systems with Intel® Rapid BIOS Boot	83
3.9.1 Peripheral Selection and Configuration	83
3.9.2 Intel Rapid BIOS Boot	83
3.10 BIOS Security Features	84
4 BIOS Setup Program	85
4.1 Introduction	85
4.2 Maintenance Menu	86
4.3 Main Menu	87
4.3.1 Additional System Information Submenu	88
4.4 Advanced Menu	89
4.4.1 PCI Configuration Submenu	90
4.4.2 Boot Configuration Submenu	91
4.4.3 Peripheral Configuration Submenu	92
4.4.4 Drive Configuration Submenu	94
4.4.5 Floppy Configuration Submenu	98
4.4.6 Event Log Configuration Submenu	99
4.4.7 Video Configuration Submenu	100
4.4.8 USB Configuration Submenu	101
4.4.9 Chipset Configuration Submenu	102
4.4.10 Fan Control Configuration Submenu	104
4.4.11 Hardware Monitoring	105
4.5 Security Menu	106
4.6 Power Menu	107
4.6.1 ACPI Submenu	107
4.7 Boot Menu	108
4.7.1 Boot Device Priority Submenu	109
4.7.2 Hard Disk Drives Submenu	110
4.7.3 Removable Devices Submenu	110
4.7.4 ATAPI CD-ROM Drives Submenu	111
4.8 Exit Menu	111
5 Error Messages and Beep Codes	113
5.1 BIOS Error Messages	113
5.2 Port 80h POST Codes	115
5.3 Bus Initialization Checkpoints	119
5.4 Speaker	120

Match case Limit results 1 per page

Overview of BIOS Features

3.4 System Management BIOS (SMBIOS)

SMBIOS is a Desktop Management Interface (DMI) compliant method for managing computers in

a managed network.

The main component of SMBIOS is the Management Information Format (MIF) database, which

contains information about the computing system and its components.

Using SMBIOS, a system

administrator can obtain the system types, capabilities, operational status, and installation dates for

system components.

The MIF database defines the data and provides the method for accessing this

information.

The BIOS enables applications such as third-party management software to use

SMBIOS.

The BIOS stores and reports the following SMBIOS information:

•

BIOS data, such as the BIOS revision level

•

Fixed-system data, such as peripherals, serial numbers, and asset tags

•

Resource data, such as memory size, cache size, and processor speed

•

Dynamic data, such as event detection and error logging

Non-Plug and Play operating systems, such as Windows NT*, require an additional interface for

obtaining the SMBIOS information.

The BIOS supports an SMBIOS table interface for such

operating systems.

Using this support, an SMBIOS service-level application running on a

non-Plug and Play operating system can obtain the SMBIOS information.

For information about

Refer to

The Desktop Boards

’

compliance level with SMBIOS

Section 1.4, page 17

3.5 Legacy USB Support

Legacy USB support enables USB devices such as keyboards, mice, and hubs to be used even

when the operating system

’

s USB drivers are not yet available.

Legacy USB support is used to

access the BIOS Setup program, and to install an operating system that supports USB.

By default,

Legacy USB support is set to Enabled.

Legacy USB support operates as follows:

When you apply power to the computer, legacy support is disabled.

2. POST begins.

Legacy USB support is enabled by the BIOS allowing you to use a USB keyboard to enter and

configure the BIOS Setup program and the maintenance menu.

4. POST completes.

The operating system loads.

While the operating system is loading, USB keyboards and mice

are recognized and may be used to configure the operating system.

(Keyboards and mice are

not recognized during this period if Legacy USB support was set to Disabled in the BIOS

Setup program.)

After the operating system loads the USB drivers, all legacy and non-legacy USB devices are

recognized by the operating system, and Legacy USB support from the BIOS is no longer

used.