Intel BOXD865GLCL Product Specification - Page 36

Intel Desktop Board D865GBF/D865GLC Technical Product Specification

36

1.8.1.3

Dynamic Video Memory Technology (DVMT)

DVMT enables enhanced graphics and memory performance through Direct AGP, and highly

efficient memory utilization.

DVMT ensures the most efficient use of available system memory

for maximum 2-D/3-D graphics performance.

Up to 64 MB of system memory can be allocated to

DVMT on systems that have 256 MB or more of total system memory installed.

Up to 32 MB can

be allocated to DVMT on systems that have 128 MB but less than 256 MB of total installed system

memory.

Up to 8 MB can be allocated to DVMT when less than 128 MB of system memory is

installed.

DVMT returns system memory back to the operating system when the additional system

memory is no longer required by the graphics subsystem.

DVMT will always use a minimal fixed portion of system physical memory (as set in the BIOS

Setup program) for compatibility with legacy applications.

An example of this would be when

using VGA graphics under DOS.

Once loaded, the operating system and graphics drivers allocate

additional system memory to the graphics buffer as needed for performing graphics functions.

NOTE

The use of DVMT requires operating system driver support.

1.8.1.4

Zone Rendering Technology (ZRT)

The Intel Extreme Graphics 2 Controller supports Zone Rendering Technology (ZRT).

ZRT is a

process by which the screen is divided into several zones.

Each zone is completely cached and

rendered on chip before being written to the frame buffer.

The benefits of ZRT include the

following:

•

Increased memory efficiency via better localization of data

•

Increased on-chip processing speed due to decreased wait time for data

•

Increased effective pixel fill rates

•

Increased headroom for larger resolution and color depth

•

Reduced power as a result of decreased memory bandwidth

•

Reduction in depth and color bandwidth associated with conventional rendering

1.8.1.5

Rapid Pixel and Text Rendering (RPTR)

The Rapid Pixel and Text Rendering Engine (RPTR) architecture utilizes special pipelines that

allow 2D and 3D operations to overlap.

By providing 8X compression, the RPTR engine reduces

the memory bandwidth required to read texture memory, and reduces the amount of memory

required for texture storage.

A dedicated, non-blocking, multi-tier cache is provided for textures, colors, Z and vertex

rendering.

With single-pass, quad texture support, the drivers can submit up to four textures that

pass to the graphics engine concurrently.

The graphics core can switch between 2D and 3D

operations without having to complete all operations of the same mode, which minimizes the

overhead time required in switching between modes.

A 2D Block Level Transfer (BLT) in the RPTR engine is extended to 256-bit, which supports fast

blitter fill rate.

This enables the blitter sequence of the same addresses to access the cache and

offloads the memory bandwidth required to support blitter fill rate.

Then the cache is emptied

automatically when the sequence of operations are complete.

Section	Page
Intel® Desktop Board D865GBF/D865GLC 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 Board Differences	11
1.2 Overview	12
1.2.1 Feature Summary	12
1.2.2 Manufacturing Options	13
1.2.3 Board Layouts	14
1.2.4 Block Diagram	16
1.3 Online Support	17
1.4 Operating System Support	17
1.5 Design Specifications	18
1.6 Processor	21
1.7 System Memory	22
1.7.1 Memory Configurations	24
1.8 Intel® 865G Chipset	29
1.8.1 Intel 865G Graphics Subsystem	30
1.8.2 Universal 0.8 V / 1.5 V AGP 3.0 Connector	38
1.8.3 USB	39
1.8.4 IDE Support	39
1.8.5 Real-Time Clock, CMOS SRAM, and Battery	41
1.9 I/O Controller	41
1.9.1 Serial Port	42
1.9.2 Parallel Port	42
1.9.3 Diskette Drive Controller	42
1.9.4 Keyboard and Mouse Interface	42
1.10 Audio Subsystem	43
1.10.1 Audio Subsystem Software	43
1.10.2 Intel® Flex 6 Audio Subsystem	43
1.10.3 Audio Connectors	45
1.11 LAN Subsystem	46
1.11.1 10/100 Mbits/sec LAN Subsystem	46
1.11.2 Gigabit LAN Subsystem	47
1.11.3 LAN Subsystem Software	48
1.12 Hardware Management Subsystem	48
1.12.1 Hardware Monitoring and Fan Control ASIC	48
1.12.2 Thermal Monitoring	49
1.12.3 Fan Monitoring	50
1.12.4 Chassis Intrusion and Detection	50
1.13 Power Management	50
1.13.1 ACPI	50
1.13.2 Hardware Support	53
2 Technical Reference	59
2.1 Introduction	59
2.2 Memory Resources	59
2.2.1 Addressable Memory	59
2.2.2 Memory Map	61
2.3 DMA Channels	61
2.4 Fixed I/O Map	62
2.5 PCI Configuration Space Map	63
2.6 Interrupts	65
2.7 PCI Interrupt Routing Map	66
2.8 Connectors	68
2.8.1 Back Panel Connectors	69
2.8.2 Internal I/O Connectors	70
2.8.3 External I/O Connectors	79
2.9 Jumper Blocks	83
2.9.1 Front Panel Audio Connector/Jumper Block	83
2.9.2 BIOS Setup Configuration Jumper Block	84
2.10 Mechanical Considerations	85
2.10.1 D865GBF Form Factor	85
2.10.2 D865GLC Form Factor	86
2.10.3 I/O Shield	87
2.11 Electrical Considerations	88
2.11.1 DC Loading	88
2.11.2 Add-in Board Considerations	88
2.11.3 Fan Connector Current Capability	88
2.11.4 Power Supply Considerations	89
2.12 Thermal Considerations	89
2.13 Reliability	92
2.14 Environmental	92
2.15 Regulatory Compliance	93
2.15.1 Safety Regulations	93
2.15.2 EMC Regulations	93
2.15.3 European Union Declaration of Conformity Statement	94
2.15.4 Product Ecology Statements	95
2.15.5 Product Certification Markings (Board Level)	95
3 Overview of BIOS Features	97
3.1 Introduction	97
3.2 BIOS Flash Memory Organization	97
3.3 Resource Configuration	98
3.3.1 PCI Autoconfiguration	98
3.3.2 PCI IDE Support	98
3.4 System Management BIOS (SMBIOS)	99
3.5 Legacy USB Support	99
3.6 BIOS Updates	100
3.6.1 Language Support	100
3.6.2 Custom Splash Screen	101
3.7 Recovering BIOS Data	101
3.8 Boot Options	102
3.8.1 CD-ROM Boot	102
3.8.2 Network Boot	102
3.8.3 Booting Without Attached Devices	102
3.8.4 Changing the Default Boot Device During POST	102
3.9 Fast Booting Systems with Intel Rapid BIOS Boot	103
3.9.1 Peripheral Selection and Configuration	103
3.9.2 Intel® Rapid BIOS Boot	103
3.10 BIOS Security Features	104
4 BIOS Setup Program	105
4.1 Introduction	105
4.2 Maintenance Menu	106
4.3 Main Menu	107
4.4 Advanced Menu	108
4.4.1 PCI Configuration Submenu	109
4.4.2 Boot Configuration Submenu	111
4.4.3 Peripheral Configuration Submenu	112
4.4.4 Drive Configuration Submenu	114
4.4.5 Floppy Configuration Submenu	118
4.4.6 Event Log Configuration Submenu	119
4.4.7 Video Configuration Submenu	120
4.4.8 USB Configuration Submenu	121
4.4.9 Chipset Configuration Submenu	122
4.4.10 Fan Control Configuration Submenu	124
4.4.11 Hardware Monitoring	125
4.5 Security Menu	126
4.6 Power Menu	127
4.6.1 ACPI Submenu	127
4.7 Boot Menu	128
4.7.1 Boot Device Priority Submenu	129
4.7.2 Hard Disk Drives Submenu	130
4.7.3 Removable Devices Submenu	130
4.7.4 ATAPI CD-ROM Drives Submenu	131
4.8 Exit Menu	131
5 Error Messages and Beep Codes	133
5.1 BIOS Error Messages	133
5.2 Port 80h POST Codes	135
5.3 Bus Initialization Checkpoints	139
5.4 Speaker	140

Intel BOXD865GLCL Product Specification - Page 36

Dynamic Video Memory Technology DVMT, 8.1.4, Zone Rendering Technology ZRT, 8.1.5, Rapid

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