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Intel D945PLNM D945PLNM Technical Product Specification - Page 40

WAKE# Signal Wake-up Support, 11.2.10, 5 V Standby Power Indicator LED, CAUTION

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Intel Desktop Board D945PLNM Technical Product Specification 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. 1.11.2.10 +5 V Standby Power Indicator LED The +5 V standby power indicator LED shows that power is still present even when the computer appears to be off. Figure 11 shows the location of the standby power indicator LED. CAUTION If AC power has been switched off and the standby power indicator is still lit, disconnect the power cord before installing or removing any devices connected to the board. Failure to do so could damage the board and any attached devices. CR3J1 OM18288 Figure 11. Location of the Standby Power Indicator LED 40

Section	Page
Intel® Desktop Board D945PLNM Technical Product Specification	1
Revision History / Disclaimer	2
Preface	3
Intended Audience	3
What This Document Contains	3
Typographical Conventions	3
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® 945PL Chipset	20
1.5.1 USB	20
1.5.2 IDE Support	21
1.5.3 Real-Time Clock, CMOS SRAM, and Battery	22
1.6 PCI Express* Connectors	27
1.7 Legacy I/O Controller	27
1.7.1 Serial Port	27
1.7.2 Parallel Port	28
1.7.3 Diskette Drive Controller	28
1.7.4 Keyboard and Mouse Interface	28
1.8 Audio Subsystem	29
1.8.1 Audio Subsystem Software	29
1.8.2 Audio Connectors	29
1.8.3 6-Channel (5.1) Audio Subsystem	30
1.9 LAN Subsystem	31
1.9.1 10/100 Mbits/sec LAN Subsystem	31
1.9.2 Alert Standard Format (ASF) Support	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 Chassis Intrusion and Detection	33
1.10.3 Fan Monitoring	33
1.10.4 Thermal Monitoring	34
1.11 Power Management	35
1.11.1 ACPI	35
1.11.2 Hardware Support	37
2 Technical Reference	41
2.1 Memory Map	41
2.2 Fixed I/O Map	42
2.3 DMA Channels	43
2.4 PCI Configuration Space Map	43
2.5 Interrupts	44
2.6 PCI Conventional* Interrupt Routing Map	45
2.7 Connectors	46
2.7.1 Back Panel Connectors	47
2.7.2 Component-side Connectors	48
2.8 Jumper Block	56
2.9 Mechanical Considerations	57
2.9.1 Form Factor	57
2.9.2 I/O Shield	58
2.10 Electrical Considerations	59
2.10.1 DC Loading	59
2.10.2 Add-in Board Considerations	59
2.10.3 Fan Connector Current Capability	60
2.10.4 Power Supply Considerations	60
2.11 Thermal Considerations	61
2.12 Reliability	63
2.13 Environmental	64
2.14 Regulatory Compliance	65
2.14.1 Safety Regulations	65
2.14.2 European Union Declaration of Conformity Statement	65
2.14.3 Product Ecology Statements	67
2.14.4 EMC Regulations	70
2.14.5 Product Certification Markings (Board Level)	72
3 Overview of BIOS Features	73
3.1 Introduction	73
3.2 BIOS Flash Memory Organization	74
3.3 Resource Configuration	74
3.3.1 PCI Autoconfiguration	74
3.3.2 PCI IDE Support	74
3.4 System Management BIOS (SMBIOS)	75
3.5 Legacy USB Support	75
3.6 BIOS Updates	76
3.6.1 Language Support	76
3.6.2 Custom Splash Screen	76
3.7 Boot Options	77
3.7.1 CD-ROM Boot	77
3.7.2 Network Boot	77
3.7.3 Booting Without Attached Devices	77
3.7.4 Changing the Default Boot Device During POST	77
3.8 Adjusting Boot Speed	78
3.8.1 Peripheral Selection and Configuration	78
3.8.2 BIOS Boot Optimizations	78
3.9 BIOS Security Features	79
4 Error Messages and Beep Codes	81
4.1 Speaker	81
4.2 BIOS Beep Codes	81
4.3 BIOS Error Messages	81