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3-3 System Memory Configuration
The mainboard accommodates four 240-pin DDR2 DIMM sockets.
• Supports up to 4GB of 400/533/667MHz DDR2 SDRAM (2GB and 400/
533MHz for i945PL chipset support only).
• Supports dual channel memory interface.
• Supports non-ECC memory and non-Registered DIMMs 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 6> 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 7>. 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.
DDR2-A2 DIMM 2
DDR2-B2 DIMM 4
Dual Channel 2
Channel A
Channel B
Dual Channel 1
DDR2-A1 DIMM 1
<Figure 7>
<Figure 6>
(Optional)
(Optional)