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Mechanical Considerations

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Intel Desktop Board D848PMB Technical Product Specification 2.10 Mechanical Considerations The Desktop Board D848PMB is designed to fit into either a microATX or an ATX-form-factor chassis. Figure 18 illustrates the mechanical form factor for the Desktop Board D848PMB. Dimensions are given in inches [millimeters]. The outer dimensions are 9.60 inches by 8.50 inches [243.84 millimeters by 215.90 millimeters]. Location of the I/O connectors and mounting holes are in compliance with the ATX specification (see Section 1.4). ✏ NOTE When installing the Desktop Board in a microATX chassis, make sure that peripheral devices are installed at least 1.5 inches above the main power connector, the diskette drive connector, and the Parallel ATA IDE connector, and the DIMM sockets. 6.500 [165.10] 6.100 [154.94] 1.800 [45.72] 5.200 [132.08] 0.00 2.000 [50.8] 3.150 [80.01] 2.600 0.00 [66.04] 6.450 6.200 [163.83] [157.48] OM16428 Figure 18. Desktop Board D848PMB Dimensions 66

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