Desktop Board Features
17
Main Memory
NOTE
To be fully compliant with all applicable Intel
®
SDRAM memory specifications, the 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.
The desktop board supports dual or single channel memory configurations defined in Table 5.
Table 5. Memory Configurations
Memory Speed Processor FSB frequency (MHz) Memory Speed Outcome (MHz)
DDR400 Pentium 4 processor 800 400
Pentium 4 processor 800 320
Pentium 4 processor 533 333
DDR333
Pentium 4 processor or
Celeron processor
400 266
Pentium 4 processor 533 or 400 266 DDR266
Celeron processor 400 266
• Up to four 184-pin Double Data Rate (DDR) SDRAM Dual Inline Memory Module (DIMMs)
connectors with gold-plated contacts.
• Support for:
Unbuffered, non-registered single or double-sided DIMMs
Serial Presence Detect (SPD) memory only
Non-ECC RAM
2.5 V memory
Memory configuration listed below:
• Up to 1.0 GB utilizing 128 Mb technology
• Up to 2.0 GB utilizing 256 Mb technology
• Up to 4.0 GB utilizing 512 Mb technology
NOTE
System resources (such as PCI and AGP) require physical memory address locations that reduce
available memory addresses above 3 GB. This may result in less than 4 GB of memory being
available to the operating system and applications.
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 34 in Chapter 2
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