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Desktop Board Features
15
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 system memory as defined below:
• Dual channel and up to four 184-pin Double Data Rate (DDR) SDRAM Dual Inline Memory
Module (DIMMs) connectors with gold-plated contacts.
• Supported memory configurations are:
Memory Speed
Processor
Front Side Bus
Frequency
Memory Speed
Outcome
DDR400 Pentium 4 processor 800 MHz 400 MHz
Pentium 4 processor 800 MHz 320 MHz
Pentium 4 processor 533 MHz 333 MHz
DDR333
Pentium 4 processor or
Celeron processor
400 MHz 266 MHz
Pentium 4 processor 533 MHz or 400 MHz 266 MHz DDR266
Celeron processor 400 MHz 266 MHz
• Support for:
Unbuffered, non-registered DIMMs
Serial Presence Detect (SPD) memory only
Support for Suspend to RAM (STR), S3 ACPI state
Non-ECC DDR (ECC memory will run in non-ECC mode)
2.5 V memory
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 section in this manual 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 32 in Chapter 2