Intel D925XBC Product Guide - Page 16

Intel Desktop Board D925XCV/D925XBC Product Guide Main Memory NOTE To be fully compliant with all applicable Intel® SDRAM memory specifications, 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. The desktop board supports dual or single channel memory configurations defined in Table 4. Table 4. Memory Configurations Memory Speed DDR2 533 Processor Pentium 4 processor DDR2 400 Pentium 4 processor FSB frequency (MHz) 800 533 800 533 Memory Speed Outcome (MHz) 533 533 400 333 • Four 240-pin Double Data Rate 2 (DDR2) 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  1.8 V memory  Memory configuration listed below: • Up to 2.0 GB utilizing 256 Mb technology • Up to 4.0 GB utilizing 512 Mb or 1 Gb technology NOTE System resources (such as PCI and PCI Express) 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 16