Intel Desktop Board D945GCNL Technical Product Specification

1.4 System Memory

The board has two DIMM sockets and supports the following memory features:

• 1.8 V (only) DDR2 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.

• 2 GB maximum total system memory. Refer to Section

2.1.1 on page 37 for

information on the total amount of addressable memory.

• Minimum total system memory: 128 MB

• Non-ECC DIMMs

• Serial Presence Detect

• DDR2 667 or DDR2 533 MHz SDRAM DIMMs

 NOTES

• Remove the PCI Express x16 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.

Table 3 lists the supported DIMM configurations.

Table 3. Supported Memory Configurations

DIMM Capacity

Configuration

SDRAM Density

SDRAM Organization

Front-side/Back-side

Number of

SDRAM Devices

128 MB SS 256 Mbit 16 M x 16/empty 4

256 MB SS 256 Mbit 32 M x 8/empty 8

256 MB SS 512 Mbit 32 M x 16/empty 4

512 MB DS 256 Mbit 32 M x 8/32 M x 8 16

512 MB SS 512 Mbit 64 M x 8/empty 8

512 MB SS 1 Gbit 64 M x 16/empty 4

1024 MB DS 512 Mbit 64 M x 8/64 M x 8 16

1024 MB SS 1 Gbit 128 M x 8/empty 8

Note: In the second column, “DS” refers to double-sided memory modules (containing two rows of SDRAM)

and “SS” refers to single-sided memory modules (containing one row of SDRAM).

For information about… Refer to:

Tested Memory http://support.intel.com/support/motherboards/desktop/sb/CS-

025414.htm