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A
X
4
R
P
l
u
s
A
X
4
R
P
l
u
s
P
C
-
1
0
0
D
I
M
M
P
C
-
1
0
0
D
I
M
M
SDRAM
DIMM that supports 100MHz CPU
P
C
-
1
3
3
D
I
M
M
P
C
-
1
3
3
D
I
M
M
SDRAM
DIMM that supports 133MHz CPU
P
C
-
1
6
0
0
,
P
C
-
2
1
0
0
P
C
-
1
6
0
0
,
P
C
-
2
1
0
0
Based on FSB frequency, the DDR DRAM has 200MHz, 266MHz and 333MHz three types of working frequency. Because DDR
DRAM data bus is 64-bit, it provides data transfer bandwidth up to 200x64/8=1600MB/s, 266x64/8=2100MB/s and
333x64/8=2700MB/s in these current three DDR DRAM.
PC-2100 DDR DRAM is working with 133MHz and PC-2700 with 166MHz FSB frequency.
P
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Bus for the internal connection of peripheral devices, high-speed data channel between the computer and expansion card.
FSB
bus clock.
FSB
bus clock.
o
r
P
C
-
2
7
0
0
D
D
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D
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R
A
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Therefore, the PC-1600 DDR DRAM is working with 100MHz,
)
B
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B
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109
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