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Adjusting Boot Speed

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Intel Desktop Board DQ965WC Technical Product Specification 3.8.3 Booting Without Attached Devices For use in embedded applications, the BIOS has been designed so that after passing the POST, the operating system loader is invoked even if the following devices are not present: • Video adapter • Keyboard • Mouse 3.8.4 Changing the Default Boot Device During POST Pressing the key during POST causes a boot device menu to be displayed. This menu displays the list of available boot devices (as set in the BIOS setup program's Boot Device Priority Submenu). Table 38 lists the boot device menu options. Table 38. Boot Device Menu Options Boot Device Menu Function Keys or Description Selects a default boot device Exits the menu, saves changes, and boots from the selected device Exits the menu without saving changes 3.9 Adjusting Boot Speed These factors affect system boot speed: • Selecting and configuring peripherals properly • Optimized BIOS boot parameters 3.9.1 Peripheral Selection and Configuration The following techniques help improve system boot speed: • Choose a hard drive with parameters such as "power-up to data ready" less than eight seconds, that minimize hard drive startup delays. • Select a CD-ROM drive with a fast initialization rate. This rate can influence POST execution time. • Eliminate unnecessary add-in adapter features, such as logo displays, screen repaints, or mode changes in POST. These features may add time to the boot process. • Try different monitors. Some monitors initialize and communicate with the BIOS more quickly, which enables the system to boot more quickly. 76

Section	Page
Intel® Desktop Board DQ965WC 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	18
1.5 Intel® Virtualization Technology (Intel® VT)	23
1.6 Intel® vPro™ Technology Support	24
1.7 Intel® Q965 Express Chipset	25
1.7.1 Intel Q965 Graphics Subsystem	25
1.7.2 USB	28
1.7.3 Serial ATA Interfaces	28
1.7.4 Real-Time Clock, CMOS SRAM, and Battery	29
1.8 Audio Subsystem	30
1.8.1 Audio Subsystem Software	30
1.8.2 Audio Connectors and Headers	31
1.9 LAN Subsystem	32
1.9.1 Intel® 82566DM Gigabit Ethernet Controller	32
1.9.2 LAN Subsystem Software	32
1.9.3 RJ-45 LAN Connector with Integrated LEDs	33
1.9.4 Intel® Active Management Technology (Intel® AMT) with System Defense Feature	33
1.9.5 Alert Standard Format (ASF) 2.0 Support	34
1.10 Hardware Management Subsystem	35
1.10.1 Hardware Monitoring and Fan Control	35
1.10.2 Fan Monitoring	35
1.10.3 Chassis Intrusion and Detection	35
1.10.4 Thermal Monitoring	36
1.11 Power Management	37
1.11.1 ACPI	37
1.11.2 Hardware Support	39
1.12 Trusted Platform Module (TPM)	44
2 Technical Reference	45
2.1 Memory Map	45
2.1.1 Addressable Memory	45
2.2 DMA Channels	47
2.3 Fixed I/O Map	48
2.4 PCI Configuration Space Map	49
2.5 Interrupts	50
2.6 PCI Interrupt Routing Map	51
2.7 Connectors and Headers	52
2.7.1 Back Panel Connectors	53
2.7.2 Component-side Connectors and Headers	54
2.8 Jumper Block	61
2.9 Mechanical Considerations	62
2.9.1 Form Factor	62
2.9.2 I/O Shield	63
2.10 Electrical Considerations	64
2.10.1 DC Loading	64
2.10.2 Fan Header Current Capability	64
2.10.3 Add-in Board Considerations	64
2.10.4 Power Supply Considerations	65
2.11 Thermal Considerations	66
2.12 Reliability	68
2.13 Environmental	69
3 Overview of BIOS Features	71
3.1 Introduction	71
3.2 BIOS Flash Memory Organization	72
3.3 Resource Configuration	72
3.3.1 PCI Autoconfiguration	72
3.4 System Management BIOS (SMBIOS)	73
3.5 Legacy USB Support	73
3.6 BIOS Updates	74
3.6.1 Language Support	74
3.6.2 Custom Splash Screen	74
3.7 BIOS Recovery	75
3.8 Boot Options	75
3.8.1 CD-ROM Boot	75
3.8.2 Network Boot	75
3.8.3 Booting Without Attached Devices	76
3.8.4 Changing the Default Boot Device During POST	76
3.9 Adjusting Boot Speed	76
3.9.1 Peripheral Selection and Configuration	76
3.9.2 BIOS Boot Optimizations	77
3.10 BIOS Security Features	78
4 Error Messages and Beep Codes	79
4.1 Speaker	79
4.2 BIOS Beep Codes	79
4.3 BIOS Error Messages	79
4.4 Port 80h POST Codes	80
5 Regulatory Compliance and Battery Disposal Information	85
5.1 Regulatory Compliance	85
5.1.1 Safety Regulations	85
5.1.2 European Union Declaration of Conformity Statement	86
5.1.3 Product Ecology Statements	88
5.1.4 EMC Regulations	91
5.1.5 Product Certification Markings (Board Level)	92