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Intel BOXD915GEV Product Specification - Page 28

I/O Controller

UPC - 735858166102

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Intel Desktop Board D915GEV/D915GRF Technical Product Specification 1.8 I/O Controller The I/O controller provides the following features: • Two serial ports (Serial Port B is optional) • One parallel port with Extended Capabilities Port (ECP) and Enhanced Parallel Port (EPP) support • Serial IRQ interface compatible with serialized IRQ support for PCI Conventional bus systems • PS/2-style mouse and keyboard interfaces • Interface for one 1.44 MB or 2.88 MB diskette drive • Intelligent power management, including a programmable wake-up event interface • PCI Conventional bus power management support The BIOS Setup program provides configuration options for the I/O controller. 1.8.1 Serial Ports The Desktop Board can support up to two serial port connectors. Serial port A is located on the back panel. Serial port B (optional) is accessible using a connector on the component side of board. The serial ports support data transfers at speeds up to 115.2 kbits/sec with BIOS support. For information about Refer to The location of the serial port A connector Figure 16, page 60 The location of the serial port B connector Figure 17, page 62 The signal names of the serial port B connector Table 21, page 64 1.8.2 Parallel Port The 25-pin D-Sub parallel port connector is located on the back panel. Use the BIOS Setup program to set the parallel port mode. For information about Refer to The location of the parallel port connector Figure 16, page 60 1.8.3 Diskette Drive Controller The I/O controller supports one diskette drive. Use the BIOS Setup program to configure the diskette drive interface. For information about Refer to The location of the diskette drive connector Figure 17, page 62 1.8.4 Keyboard and Mouse Interface PS/2 keyboard and mouse connectors are located on the back panel. NOTE The keyboard is supported in the bottom PS/2 connector and the mouse is supported in the top PS/2 connector. Power to the computer should be turned off before a keyboard or mouse is connected or disconnected. 28

Section	Page
Intel® Desktop Boards D915GEV/D915GRF 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	11
1.1 PCI Bus Terminology Change	11
1.2 Overview	12
1.2.1 Feature Summary	12
1.2.2 Manufacturing Options	13
1.2.3 Board Layout	14
1.2.4 Block Diagram	16
1.3 Online Support	17
1.4 Processor	17
1.5 System Memory	18
1.5.1 Memory Configurations	19
1.5.1.1 Dual Channel (Interleaved) Mode Configurations	20
1.5.1.2 Single Channel (Asymmetric) Mode Configurations	22
1.6 Intel® 915G Chipset	23
1.6.1 Intel 915G Graphics Subsystem	23
1.6.1.1 Intel® GMA900 Graphics Controller	23
1.6.1.2 Dynamic Video Memory Technology (DVMT)	24
1.6.1.3 Advanced Digital Display 2 (ADD2) Card Support	24
1.6.1.4 Configuration Modes	25
1.6.2 USB	25
1.6.3 IDE Support	25
1.6.3.1 Parallel ATE IDE Interface	25
1.6.3.2 Serial ATA Interfaces	26
1.6.3.3 SCSI Hard Drive Activity LED Connector (Optional)	27
1.6.4 Real-Time Clock, CMOS SRAM, and Battery	27
1.7 PCI Express Connectors	27
1.8 I/O Controller	28
1.8.1 Serial Ports	28
1.8.2 Parallel Port	28
1.8.3 Diskette Drive Controller	28
1.8.4 Keyboard and Mouse Interface	28
1.9 Audio Subsystem	29
1.9.1 Audio Subsystem Software	29
1.9.2 Audio Connectors	29
1.9.3 Intel® High Definition Audio Subsystem	30
1.10 LAN Subsystem	31
1.10.1 10/100 Mbits/sec LAN Subsystem	31
1.10.1.1 Intel® 82562EZ Physical Layer Interface Device	31
1.10.1.2 RJ-45 LAN Connector with Integrated LEDs	31
1.10.2 Gigabit LAN Subsystem	32
1.10.2.1 Marvell Yukon 88E8050 PCI Express 1.0a Integrated MAC/PHY Gigabit Ethernet Controller	32
1.10.2.2 RJ-45 LAN Connector with Integrated LEDs	32
1.10.3 Alert Standard Format (ASF) Support	33
1.10.4 LAN Subsystem Software	34
1.11 Hardware Management Subsystem	34
1.11.1 Hardware Monitoring and Fan Control ASIC	34
1.11.2 Thermal Monitoring	35
1.11.3 Fan Monitoring	36
1.11.4 Chassis Intrusion and Detection	36
1.12 Power Management	36
1.12.1 ACPI	37
1.12.1.1 System States and Power States	38
1.12.1.2 Wake-up Devices and Events	39
1.12.2 Hardware Support	39
1.12.2.1 Power Connector	40
1.12.2.2 Fan Connectors	40
1.12.2.3 LAN Wake Capabilities	40
1.12.2.4 Instantly Available PC Technology	41
1.12.2.5 Resume on Ring	41
1.12.2.6 Wake from USB	41
1.12.2.7 Wake from PS/2 Devices	41
1.12.2.8 PME# Signal Wake-up Support	41
1.12.2.9 WAKE# Signal Wake-up Support	42
1.12.2.10 +5 V Standby Power Indicator LED	42
1.13 Trusted Platform Module	43
1.13.1 System Requirements	43
1.13.2 Warning of Potential Data Loss	43
1.13.3 Security Precautions	44
1.13.3.1 Password Procedures	44
1.13.3.2 Emergency Recovery File Back Up Procedures	45
1.13.3.3 Hard Drive Image Backup Procedures	45
1.13.3.4 Clear Text Backup (Optional)	45
1.13.4 Trusted Platform Module Ownership	45
1.13.5 Enabling the Trusted Platform Module	46
1.13.6 Assuming Trusted Platform Module Ownership	46
1.13.7 Recovery Procedures	47
1.13.7.1 Recovering from Hard Disk Failure	47
1.13.7.2 Recovering from Desktop Board or TPM Failure	47
1.13.8 Clearing Trusted Platform Module Ownership	48
1.13.9 Software Support	49
2 Technical Reference	51
2.1 Introduction	51
2.2 Memory Resources	51
2.2.1 Addressable Memory	51
2.2.2 Memory Map	53
2.3 DMA Channels	53
2.4 Fixed I/O Map	54
2.5 PCI Configuration Space Map	55
2.6 Interrupts	56
2.7 PCI Conventional Interrupt Routing Map	57
2.8 Connectors	59
2.8.1 Back Panel Connectors	60
2.8.2 Component-side Connectors	62
2.8.2.1 Chassis Fan Connectors	65
2.8.2.2 Power Supply Connectors	66
2.8.2.3 Add-in Card Connectors	67
2.8.2.4 Auxiliary Front Panel Power/Sleep LED Connector	68
2.8.2.5 Front Panel Connector	68
2.8.2.5.1 Hard Drive Activity LED Connector [Yellow]	69
2.8.2.5.2 Reset Switch Connector [Purple]	69
2.8.2.5.3 Power/Sleep LED Connector [Green]	69
2.8.2.5.4 Power Switch Connector [Red]	69
2.8.2.6 Front Panel USB Connectors	69
2.8.2.7 Front Panel IEEE 1394a Connectors (Optional)	70
2.9 Jumper Block	71
2.10 Mechanical Considerations	72
2.10.1 Form Factor	72
2.10.2 I/O Shield	73
2.11 Electrical Considerations	74
2.11.1 DC Loading	74
2.11.2 Add-in Board Considerations	74
2.11.3 Fan Connector Current Capability	74
2.11.4 Power Supply Considerations	75
2.12 Thermal Considerations	76
2.13 Reliability	78
2.14 Environmental	79
2.15 Regulatory Compliance	80
2.15.1 Safety Regulations	80
2.15.2 EMC Regulations	80
2.15.2.1 FCC Compliance Statement (USA)	81
2.15.2.2 Canadian Compliance Statement	81
2.15.3 European Union Declaration of Conformity Statement	81
2.15.4 Product Ecology Statements	82
2.15.4.1 Disposal Considerations	82
2.15.4.2 Recycling Considerations	82
2.15.5 Product Certification Markings (Board Level)	83
3 Overview of BIOS Features	85
3.1 Introduction	85
3.2 BIOS Flash Memory Organization	86
3.3 Resource Configuration	86
3.3.1 PCI Autoconfiguration	86
3.3.2 PCI IDE Support	86
3.4 System Management BIOS (SMBIOS)	87
3.5 Legacy USB Support	87
3.6 BIOS Updates	88
3.6.1 Language Support	88
3.6.2 Custom Splash Screen	88
3.7 Boot Options	89
3.7.1 CD-ROM Boot	89
3.7.2 Network Boot	89
3.7.3 Booting Without Attached Devices	89
3.7.4 Changing the Default Boot Device During POST	89
3.8 Fast Booting Systems with Intel® Rapid BIOS Boot	90
3.8.1 Peripheral Selection and Configuration	90
3.8.2 Intel Rapid BIOS Boot	90
3.9 BIOS Security Features	91
4 Error Messages and Beep Codes	93
4.1 BIOS Error Messages	93
4.2 Port 80h POST Codes	95
4.3 Bus Initialization Checkpoints	99
4.4 Speaker	100