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M
X
4
6
-
5
3
3
V
/
M
M
X
4
6
-
5
3
3
V
/
M
R
R
I
I
M
M
M
M
(
(
R
R
a
a
m
m
b
b
u
u
s
s
I
I
n
n
l
l
184-pin memory module that supports
devices.
S
D
R
A
M
(
S
y
n
c
h
r
o
n
S
D
R
A
M
(
S
y
n
c
h
r
o
n
SDRAM is one of the DRAM technologies that allow DRAM to use the same clock as the CPU host bus
and do not have clock signal). It is similar as
3.3V. AOpen is the first company to support dual-SDRAM DIMMs onboard (AP5V), from Q1 1996
2
2
S
h
a
d
o
w
E
P
R
O
M
S
h
a
d
o
w
E
P
R
O
M
A memory space in Flash-ROM to simulate E
battery-less design
S
I
M
M
(
S
i
n
g
l
e
I
n
L
i
n
S
I
M
M
(
S
i
n
g
l
e
I
n
L
i
n
SIMM socket is only 72-pin, and is only single side. The golden finger signals on each side of PCB are identical. That is why it was called
Single In Line. SIMM is made by FPM or
X
4
6
-
5
3
3
M
a
x
X
4
6
-
5
3
3
M
a
x
i
i
n
n
e
e
M
M
e
e
m
m
o
o
r
r
y
y
M
M
o
o
d
d
u
u
l
l
RDRAM
memory technology. A RIMM memory module may contain up to maximum of 16 RDRAM
o
u
s
D
R
A
M
)
o
u
s
D
R
A
M
)
PBSRAM
to use burst mode transfer. SDRAM comes in 64-bit 168-pin
2
PROM operation, AOpen motherboard uses Shadow E
e
M
e
m
o
r
y
M
o
d
u
l
e
e
M
e
m
o
r
y
M
o
d
u
l
e
EDO
DRAM and supports 32-bit data. SIMM had been phased out on current motherboard design.
e
e
)
)
)
)
97
O
n
l
i
n
e
M
a
n
u
a
l
O
n
l
i
n
e
M
a
n
u
a
l
(EDO
and FPM are asynchronous
DIMM
and operates at
2
PROM for jumper-less and
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