Intel KD875PBZLKPAK10 Product Specification - Page 21

System Memory - installation

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Product Description 1.6 System Memory 1.6.1 Memory Features The Desktop Board D875PBZ 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 49 for information on the total amount of addressable memory. • Minimum total system memory: 64 MB • ECC and non-ECC DIMMs supported • Serial Presence Detect • DDR400 and DDR333 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... The processor's system bus frequency must be... DDR400 800 MHz DDR333 800 or 533 MHz (Note) 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 • When ECC DIMMs are used, the Power-On Self Test (POST) will take longer to complete. • 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 Refer to Section 1.4, page 17 21

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Product Description
21
1.6 System Memory
1.6.1
Memory Features
The Desktop Board D875PBZ 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 49 for information on
the total amount of addressable memory.
•
Minimum total system memory:
64 MB
•
ECC and non-ECC DIMMs supported
•
Serial Presence Detect
•
DDR400 and DDR333 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…
The processor's system bus frequency must be…
DDR400
800 MHz
DDR333
800 or 533 MHz (Note)
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
•
When ECC DIMMs are used, the Power-On Self Test (POST) will take longer to complete.
•
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
Refer to
Obtaining DDR SDRAM specifications
Section 1.4, page 17