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Intel I925XE User Manual

Page 21

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Installation

Page 3-5

3-3 System Memory Configuration

The mainboard accommodates four 240-pin DDR2 DIMM sockets.

• Supports up to 4.0GB of 400/533MHz DDR2 SDRAM.

• Supports

dual channel memory interface.

• Supports non-ECC memory and non-Registered DIMMs only.

• Supports 256Mb/512Mb/1Gb DDR2 technologies in x8 and x16 devices only.

• SPD (Serial Presence Detect) scheme for DIMM detection support.

• Supports configurations defined in the JEDEC DDR2 DIMM specification only.

Dual Channel interface:

• Dual channel memory access offers increased system performance.

shows the logical memory layout for channel A and channel B.

• For dual channel to operate, both channel must be populated with same

amount of memory, preferably of the same type.

• The four DIMM sockets are divided into two colors to help you identify the

channel pairs

. Each dual channel pair has the same color, e.g.
DIMM1 and DIMM3. To obtain best performance, simply mount DIMM
sockets of the same color.

DDR-A2 DIMM 2

DDR-B2 DIMM 4

Dual Channel 2

Channel A

Channel B

Dual Channel 1

DDR-A1 DIMM 1