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Instantly Available PC Technology, CAUTION

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Intel Desktop Board D848PMB Technical Product Specification 1.12.2.4 Instantly Available PC Technology CAUTION For Instantly Available PC technology, the +5 V standby line for the power supply must be capable of providing adequate +5 V standby current. Failure to provide adequate standby current when implementing Instantly Available PC technology can damage the power supply. Instantly Available PC technology enables the Desktop Board D848PMB to enter the ACPI S3 (Suspend-to-RAM) sleep-state. While in the S3 sleep-state, the computer will appear to be off (the power supply is off, and the front panel LED is amber if dual colored, or off if single colored.) When signaled by a wake-up device or event, the system quickly returns to its last known wake state. Table 10 on page 37 lists the devices and events that can wake the computer from the S3 state. The Desktop Board D848PMB supports the PCI Bus Power Management Interface Specification. For information on the version of this specification, see Section 1.4. Add-in boards that also support this specification can participate in power management and can be used to wake the computer. The use of Instantly Available PC technology requires operating system support and PCI 2.2 compliant add-in cards and drivers. 40

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

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Intel Desktop Board D848PMB Technical Product Specification

1.12.2.4

Instantly Available PC Technology

CAUTION

For Instantly Available PC technology, the +5 V standby line for the power supply must be

capable of providing adequate +5 V standby current.

Failure to provide adequate standby current

when implementing Instantly Available PC technology can damage the power supply.

Instantly Available PC technology enables the Desktop Board D848PMB to enter the ACPI S3

(Suspend-to-RAM) sleep-state.

While in the S3 sleep-state, the computer will appear to be off (the

power supply is off, and the front panel LED is amber if dual colored, or off if single colored.)

When signaled by a wake-up device or event, the system quickly returns to its last known wake

state.

Table 10 on page 37 lists the devices and events that can wake the computer from the

S3 state.

The Desktop Board D848PMB supports the

PCI Bus Power Management Interface Specification

For information on the version of this specification, see Section 1.4.

Add-in boards that also

support this specification can participate in power management and can be used to wake the

computer.

The use of Instantly Available PC technology requires operating system support and PCI 2.2

compliant add-in cards and drivers.