Intel DG33BU specifications System Memory, Supported Memory Configurations, DIMMs

Intel Desktop Board DG33BU Technical Product Specification

INTEGRATOR’S NOTE

Use only ATX12V-compliant power supplies.

For information about	Refer to
Power supply connectors	Section 2.2.2.4, page 46

1.5System Memory

The board has four 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.

•8 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: 512 MB

•Non-ECC DIMMs

•Serial Presence Detect

•DDR2 667 or DDR2 800 MHz SDRAM DIMMs

•DDR2 667 DIMMs with SPD timings of only 5-5-5 (tCL-tRCD-tRP)

•DDR2 800 DIMMs with SPD timings of only 5-5-5 or 6-6-6 (tCL-tRCD-tRP)

NOTE

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 enables 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

		Smallest usable	Largest usable	Maximum capacity
		DIMM (one x16	DIMM (one x8	with four identical
DIMM	SDRAM	Single-sided	Double-sided	x8 Double-sided
Type	Technology	DIMM)	DIMM)	DIMMs
DDR2 667	512 Mbit	256 MB	1 GB	4 GB
DDR2 667	1 Gbit	512 MB	2 GB	8 GB
DDR2 800	512 Mbit	256 MB	1 GB	4 GB
DDR2 800	1 Gbit	512 MB	2 GB	8 GB

For information about…	Refer to:
Tested Memory	http://support.intel.com/support/motherboards/desktop/sb/
	CS-025414.htm

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