System Memory Configuration - EPOX EP-5P945-J3 User Manual

2-3 System Memory Configuration

The mainboard accommodates four 240-pin DDR2 DIMM sockets.
• Supports up to 4GB of 400/533/667MHz DDR2 SDRAM.
• Supports unbuffered DIMM configurations defined in JEDEC DDR2 DIMM specification.
Dual Channel interface:
• Dual channel memory access offers increased system performance.
• 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 1>. 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
Memory configurations supported:
I D M M 1 # S S D / S
I D M M 2 # S
I D M M 3 #
I D M M 4 #
* SS: Single-Sided DIMM, DS: Double-Sided DIMM
Memory Installation :
To install, align the notch on the DIMM module with the connector.
Press straight down as shown in the figure until the white clips close and the module fits
tightly into the DIMM socket.
DDR2-A1 DIMM 1
DDR2-A2 DIMM 2
DDR2-B2 DIMM 4
1 I D M M
( 4 6 b - ) t i
S S D /
S D / S
S S D / S S S D /
S S D / S
Notch
2 I D M M s 2 I D M M s
1 ( 8 2 b - ) t i ( 4 6 b - ) t i
S S S D /
S S D / S S S D / S
S S S D / S
S S D / S S S D /
Introduction
Dual Channel 1
<Figure 1>
Dual Channel 2
3 I D M M s 4 D I M
1 ( 8 2 b - ) t i 1 ( 8 2 b -
S S S D / S S S D / S S S D /
S S D / S S S D / S S S D /
S S D / S S S D /
S S S D / S S S D /
M s
) t i
S
S
S
S
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