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Intel Desktop Board DG45ID Product Guide
14
NOTE
System resources and hardware (such as PCI Express) require physical memory
address locations that can reduce available addressable system memory. This could
result in a reduction of as much as 1 GB or more of physical addressable memory
being available to the operating system and applications, depending on the system
configuration and operating system.
Go to the following locations for more information about:
• SDRAM specifications, http://intel.com/technology/memory/
• Installing memory, page 36 in Chapter 2
• Tested memory, http:
//cmtlabs.com/mbsearch.asp
Intel
®
G45 Express Chipset
The Intel G45 Express Chipset consists of the following devices:
• Intel G45 Express Chipset Graphics and Memory Controller Hub (GMCH) with Direct
Media Interface (DMI)
• Intel 82801JR I/O Controller Hub (ICH10R) with DMI
The GMCH component provides interfaces to the processor, memory, PCI Express, and
the DMI interconnect. The component also provides integrated graphics capabilities
supporting 3D, 2D, and display capabilities. The ICH10R is a centralized controller for
the board’s I/O paths.
For more information on the Intel G45 Express Chipset go to
http://developer.intel.com/products/chipsets/
Intel G45 Graphics Subsystem
The Intel G45 Express Chipset contains two separate, mutually exclusive graphics
options. Either the integrated Intel Graphics Media Accelerator X4500HD
(GMA X4500HD) graphics controller is used or a PCI Express x16 add-in card can be
used.
The GMA X4500 graphics controller supports dual independent displays via the HDMI
and DVI-I connectors on the Desktop Board back panel. When a PCI Express x16, x8,
or x4 add-in card is installed on the Desktop Board, the Intel GMA X4500 graphics
controller is disabled.