chiliGREEN D945GBO - Manual (Page 22)

Intel Desktop Board D945GBO Technical Product Specification
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• Video
⎯ Hardware motion compensation for MPEG2
⎯ Software DVD at 30 fps full screen
• Display
⎯ Integrated 24-bit 400 MHz RAMDAC
⎯ Up to 2048 x 1536 at 75 Hz refresh (QXGA)
⎯ DDC2B compliant interface
⎯ With Advanced Digital Display 2 or 2+ (ADD2/ADD2+) cards, support for TV-out / TV-in
and DVI digital display connections
⎯ Supports flat panels up to 2048 x 1536 at 60Hz or digital CRT/HDTV at 1920 x 1080 at 85
Hz (with ADD2/ADD2+)
⎯ Two multiplexed DVO port interfaces with 200 MHz pixel clocks using an ADD2/ADD2+
card
• Dynamic Video Memory Technology (DVMT) support up to 224 MB
• Intel
® Zoom Utility
For information about Refer to
DVMT Section 1.6.1.2, page 22
Obtaining graphics software and utilities Section 1.3, page 15
1.6.1.2 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 224 MB of system memory can be allocated to
DVMT on systems that have 512 MB or more of total system memory installed. Up to 128 MB can
be allocated to DVMT on systems that have 256 MB but less than 512 MB of total installed system
memory. Up to 64 MB can be allocated to DVMT when less than 256 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.
1.6.1.3 Advanced Digital Display (ADD2/ADD2+) Card Support
The GMCH routes two multiplexed DVO ports that are each capable of driving up to a 200 MHz
pixel clock to the PCI Express x16 connector. The DVO ports can be paired for a dual channel
configuration to support up to a 400 MHz pixel clock. When an ADD2/ADD2+ card is detected,
the Intel GMA950 graphics controller is enabled and the PCI Express x16 connector is configured
for DVO mode. DVO mode enables the DVO ports to be accessed by the ADD2/ADD2+ card. An