Intel Desktop Board DQ45CB Technical Product Specification
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1.6.1.4
Digital Visual Interface (DVI)
The DVI-I port supports both digital and analog DVI displays. The maximum
supported resolution is 2048 x 1536 at 75 Hz refresh (QXGA). The DVI port is
compliant with the DVI 1.0 specification.
The DVI-D port supports only digital DVI displays. The maximum supported resolution
is 2048 x 1536 at 75 Hz refresh (QXGA). The DVI-D port is compliant with the DVI
1.0 specification.
Depending on the type of add-in card installed in the PCI Express x16 connector, the
DVI ports will behave as described in Table 4.
Table 4. DVI Port Status Conditions
PCI Express x16 connector status
DVI Digital (DVI-D)
port status
DVI Analog (DVI-I)
port status
(Note)
No add-in card installed
Enabled
Enabled (DVI and VGA)
Non-video PCI Express x1 add-in card
installed
Enabled
Enabled (DVI and VGA)
PCI Express x4, x8, or 16 add-in card
installed
Disabled
Enabled (VGA only)
ADD2 or MEC card installed
Disabled
Enabled (DVI and VGA)
Note: DVI analog output can also be converted to VGA via a DVI-VGA converter.
NOTE
DVI analog output can also be converted to VGA via a DVI-VGA converter.
1.6.1.5
Advanced Digital Display (ADD2/MEC/ADD2+) Card
Support
The GMCH routes two multiplexed SDVO ports that are each capable of driving up to a
400 MHz pixel clock to the PCI Express x16 connector. When an ADD2/MEC/ADD2+
card is detected, the Intel GMA 4500 graphics controller is enabled and the PCI
Express x16 connector is configured for SDVO mode. SDVO mode enables the SDVO
ports to be accessed by the ADD2/MEC/ADD2+ card. An ADD2/MEC/ADD2+ card can
either be configured to support simultaneous display or can be configured to support
dual independent display as an extended desktop configuration with different color
depths and resolutions with DVI analog output only. ADD2/MEC/ADD2+ cards can be
designed to support the following configurations:
•
Low Voltage Differential Signaling (LVDS)
•
Single device operating in dual channel mode
•
HDTV output
•
HDMI support (when used with the HD Audio Link header)
