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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.
<Figure 7> 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 <Figure 8>. 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.
Channel A
Channel B
<Figure 7>
DDR-A1 DIMM 1
DDR-A2 DIMM 2
DDR-B2 DIMM 4
<Figure 8>
Installation
Dual Channel 1
Dual Channel 2
Page 3-5
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