System Memory; Memory Features; Supported System Bus Frequency And Memory Speed Combinations - Intel BLKD865PERL Technical Product Specification

1.6 System Memory

1.6.1 Memory Features

The Desktop Board D865PERL has four DIMM sockets and supports the following memory
features:
•
2.5 V (only) 184-pin DDR SDRAM DIMMs with gold-plated contacts
•
Unbuffered, single-sided or double-sided DIMMs with the following restriction:
Double-sided DIMMS with x16 organization are not supported.
•
4 GB maximum total system memory. Refer to Section 2.2.1 on page 51 for information on
the total amount of addressable memory.
•
Minimum total system memory: 64 MB
•
Non-ECC DIMMs
•
Serial Presence Detect
•
DDR400, DDR333, and DDR266 SDRAM DIMMs
Table 4 lists the supported system bus frequency and memory speed combinations.
Table 4.

Supported System Bus Frequency and Memory Speed Combinations

To use this type of DIMM...
DDR400
DDR333
DDR266
Note: When using an 800 MHz system bus frequency processor, DDR333 memory is clocked at 320 MHz. This
minimizes system latencies to optimize system throughput.
✏
NOTES
•
Remove the AGP video card before installing or upgrading memory to avoid interference with
the memory retention mechanism.
•
To be fully compliant with all applicable DDR SDRAM memory specifications, the board
should be populated with DIMMs that support the Serial Presence Detect (SPD) data
structure. This allows the BIOS to read the SPD data and program the chipset to accurately
configure memory settings for optimum performance. If non-SPD memory is installed, the
BIOS will attempt to correctly configure the memory settings, but performance and reliability
may be impacted or the DIMMs may not function under the determined frequency.
For information about
Obtaining DDR SDRAM specifications
The processor's system bus frequency must be...
800 MHz
800 or 533 MHz (Note)
800, 533, or 400 MHz
Product Description
Refer to
Section 1.4, page 17
21