Intel D925XHY D925XHY Technical Product Specification - Page 40

Intel Desktop Board D925XHY Technical Product Specification

40

•

The PCI Conventional bus PME# signal for PCI 2.2 compliant LAN designs

•

The onboard LAN subsystem

1.11.2.4

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 board 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 7 on page

38 lists the devices and events that can wake the computer from the S3 state.

The board supports the

PCI Bus Power Management Interface Specification

.

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, PCI Express add-in cards, and drivers.

1.11.2.5

Resume on Ring

The operation of Resume on Ring can be summarized as follows:

•

Resumes operation from ACPI S1 or S3 states

•

Detects incoming call similarly for external and internal modems

•

Requires modem interrupt be unmasked for correct operation

1.11.2.6

Wake from USB

USB bus activity wakes the computer from ACPI S1 or S3 states.

±

NOTE

Wake from USB requires the use of a USB peripheral that supports Wake from USB.

1.11.2.7

Wake from PS/2 Devices

PS/2 device activity wakes the computer from an ACPI S1 or S3 state.

1.11.2.8

PME# Signal Wake-up Support

When the PME# signal on the PCI Conventional bus is asserted, the computer wakes from an ACPI

S1, S3, S4, or S5 state (with Wake on PME enabled in BIOS).

1.11.2.9

WAKE# Signal Wake-up Support

When the WAKE# signal on the PCI Express bus is asserted, the computer wakes from an ACPI

S1, S3, S4, or S5 state.

Section	Page
Intel® Desktop Board D925XHY Technical Product Specification	1
Revision History / Disclaimer	2
Preface	3
Intended Audience	3
What This Document Contains	3
Typographical Conventions	3
Other Common Notation	4
Contents	5
1 Product Description	9
1.1 Overview	10
1.1.1 Feature Summary	10
1.1.2 Board Layout	12
1.1.3 Block Diagram	14
1.2 Online Support	15
1.3 Processor	15
1.4 System Memory	16
1.4.1 Memory Configurations	17
1.5 Intel® 925X Chipset	21
1.5.1 USB	21
1.5.2 IDE Support	21
1.5.3 Real-Time Clock, CMOS SRAM, and Battery	24
1.6 PCI Express* Connectors	28
1.7 Legacy I/O Controller	28
1.7.1 Serial Port	28
1.7.2 Parallel Port	29
1.7.3 Diskette Drive Controller	29
1.7.4 Keyboard and Mouse Interface	29
1.8 Audio Subsystem	30
1.8.1 Audio Subsystem Software	30
1.8.2 Audio Connectors	30
1.8.3 8-Channel (7.1) Audio Subsystem	30
1.9 LAN Subsystem	32
1.9.1 Marvell* Yukon* 88E8036 PCI Express 10/100 Ethernet Controller	32
1.9.2 RJ-45 LAN Connector with Integrated LEDs	32
1.9.3 LAN Subsystem Software	32
1.10 Hardware Management Subsystem	33
1.10.1 Hardware Monitoring and Fan Control ASIC	33
1.10.2 Thermal Monitoring	34
1.10.3 Fan Monitoring	35
1.10.4 Chassis Intrusion and Detection	35
1.11 Power Management	35
1.11.1 ACPI	36
1.11.2 Hardware Support	38
2 Technical Reference	43
2.1 Introduction	43
2.2 Memory Resources	43
2.2.1 Addressable Memory	43
2.2.2 Memory Map	45
2.3 DMA Channels	45
2.4 Fixed I/O Map	46
2.5 PCI Configuration Space Map	47
2.6 Interrupts	48
2.7 PCI Conventional Interrupt Routing Map	49
2.8 Connectors	50
2.8.1 Back Panel Connectors	50
2.8.2 Component-side Connectors	52
2.9 Jumper Block	61
2.10 Mechanical Considerations	62
2.10.1 Form Factor	62
2.10.2 I/O Shield	63
2.11 Electrical Considerations	64
2.11.1 DC Loading	64
2.11.2 Add-in Board Considerations	64
2.11.3 Fan Connector Current Capability	65
2.11.4 Power Supply Considerations	65
2.12 Thermal Considerations	66
2.13 Reliability	68
2.14 Environmental	69
2.15 Regulatory Compliance	70
2.15.1 Safety Regulations	70
2.15.2 European Union Declaration of Conformity Statement	70
2.15.3 Product Ecology Statements	72
2.15.4 EMC Regulations	74
2.15.5 Product Certification Markings (Board Level)	76
3 Overview of BIOS Features	77
3.1 Introduction	77
3.2 BIOS Flash Memory Organization	78
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	80
3.7 Boot Options	81
3.7.1 CD-ROM Boot	81
3.7.2 Network Boot	81
3.7.3 Booting Without Attached Devices	81
3.7.4 Changing the Default Boot Device During POST	81
3.8 Fast Booting Systems with Intel® Rapid BIOS Boot	82
3.8.1 Peripheral Selection and Configuration	82
3.8.2 Intel Rapid BIOS Boot	82
3.9 BIOS Security Features	83
4 Error Messages and Beep Codes	85
4.1 BIOS Error Messages	85
4.2 Port 80h POST Codes	87
4.3 Bus Initialization Checkpoints	91
4.4 Speaker	92

Intel D925XHY D925XHY Technical Product Specification - Page 40

PME# Signal Wake-up Support

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