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Intel Desktop Board D845PEMY Product Guide
14
Main Memory
NOTE
To be fully compliant with all applicable Intel
®
SDRAM memory specification addendums, the
desktop board should be populated with DIMMs that support the Serial Presence Detect (SPD)
data structure. If your memory modules do not support SPD, you will see a notification to this
effect on the screen at power up. The BIOS will attempt to configure the memory controller for
normal operation.
NOTE
All memory components and DIMMs used with the desktop board must comply with the PC SDRAM
specifications. These include the PC SDRAM Specification (memory component specific) and the
PC Unbuffered DIMM Specification.
The desktop board supports single channel memory configurations defined in Table 4.
Table 4. Memory Support
Memory Speed Processor System Bus (MHz) Memory Speed Outcome (MHz)
Pentium 4 processor or
Celeron D processor
533 333 DDR 333
Pentium 4 processor or
Celeron processor
400 266
Pentium 4 processor or
Celeron D processor
533 266 DDR266
Pentium 4 processor or
Celeron processor
400 266
• Two 2.5 V 184-pin DDR DIMM sockets with gold-plated contacts
• Serial Presence Detect (SPD)
• Unbuffered, non-ECC RAM (registered memory is not supported)
• Support for 64 Mb, 128 Mb, 256 Mb, and 512 Mb memory technologies for the following
memory configurations:
— 64 MB to 256 MB utilizing 64 Mb technology
— Up to 512 MB utilizing 128 Mb technology
— Up to 1 GB utilizing 256 Mb technology
— Up to 2 GB utilizing 512 Mb technology
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/pcsdram/spec/
• Installing memory, page 29 in Chapter 2