Desktop Board Features

NOTE

Regardless of the DIMM type used, the memory frequency will either be equal to or less than the processor system bus frequency. For example, if DDR2 667 memory is used with a 533 MHz system bus frequency processor, the memory will operate at 533 MHz. Table 3 lists the resulting operating memory frequencies based on the combination of DIMMs and processors.

Table 3. Memory Operating Frequencies

 

Processor system bus

Resulting memory

DIMM Type

frequency

frequency

 

 

 

DDR2 533

533

533

 

 

 

DDR2 533

800

533

 

 

 

DDR2 533

1066

533

 

 

 

DDR2 667

533

533

 

 

 

DDR2 667

800

667

 

 

 

DDR2 667

1066

667

 

 

 

DDR2 800

533

533

 

 

 

DDR2 800

800

800

 

 

 

DDR2 800

1066

800

 

 

 

Related Links

Go to the following links or pages for more information about:

The latest list of tested memory, http://support.intel.com/support/motherboards/desktop/

SDRAM specifications, http://www.intel.com/technology/memory/

Installing memory, page 34 in Chapter 2

Intel® 975X Express Chipset

The Intel 975X Express Chipset consists of the following devices:

Intel 82975X Memory Controller Hub (MCH) with Direct Media Interface

Intel 82801GH I/O Controller Hub (ICH7DH)

Related Link

Go to the following link for more information about the Intel 975X Express Chipset:

http://www.intel.com/products/desktop/chipsets

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Intel D975XBX2 manual Intel 975X Express Chipset, Memory Operating Frequencies, Related Link