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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.
Desktop boards D915PGN and D915PSY support dual or single channel memory configurations
defined in Table 5.
Table 5. Desktop Board D915PGN/D915PSY Memory Configurations
Memory Speed Processor FSB Frequency (MHz) Memory Speed Outcome (MHz)
800 400 DDR 400 Pentium 4 processor
533 400
800 333DDR 333 Pentium 4 processor
533 333
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 4.0 GB utilizing 512 Mb or 1 GB technology
• Up to 2.0 GB utilizing 256 Mb technology
Desktop boards D915PCY and D915PCM support dual or single channel memory configurations
defined in Table 6.
Table 6. Desktop Board D915PCY/D915PCM Memory Configurations
Memory Speed Processor FSB Frequency (MHz) Memory Speed Outcome (MHz)
800 533 DDR2 533 Pentium 4 processor
533 533
800 400 DDR2 400 Pentium 4 processor
533 400