Installation
3VCA/6VBA2
Page
7
System Memory Configuration
Memory Layout
The 3VCA/6VBA2 supports (3) PC133 168-pin DIMMs (Dual In-line
Memory Module). The DIMMs can be either EDO (Enhanced Data Out) or
SDRAM (Synchronized DRAM).
•
DIMM SDRAM may be 83MHz (12ns), 100MHz (10ns) or
125MHz (8ns) bus speed.
•
If you use both 50ns and 60ns memory you must configure
your BIOS to read 60ns.
•
When using Synchronous DRAM we recommend using the
4 clock variety over the 2 clock.
Figure 2 and Table 1 show several possible memory configurations using both
SIMM and DIMM.
* SDRAM only supports 8, 16, 32, 64, 128, 256MB DIMM modules.
* We recommend to use PC100 Memory Module for bus speed between 66MHz
and 100MHz and PC133 Memory for bus speed over 100MHz.
* Using non-compliant memory with higher bus speed (over clocking) may
severely compromise the integrity of the system.
DIMM 1
DIMM 2
B a n k 0 /1
B a n k 2 /3
DIMM 3
B a n k 4 /5
-Sy nc h ro n o us
-E D O
y
r
o
m
e
M
l
a
t
o
T
1
M
M
I
D
)
1
/
0
k
n
a
B
(
2
M
M
I
D
)
3
/
2
k
n
a
B
(
3
M
M
I
D
)
5
/
4
k
n
a
B
(
B
M
6
5
2
=
m
u
m
i
x
a
M
*
M
A
R
D
S
/
O
D
E
,
B
M
4
6
,
B
M
2
3
,
B
M
6
1
,
B
M
8
1
X
B
M
6
5
2
,
B
M
8
2
1
e
n
o
N
e
n
o
N
B
M
2
1
5
=
m
u
m
i
x
a
M
*
M
A
R
D
S
/
O
D
E
,
B
M
4
6
,
B
M
2
3
,
B
M
6
1
,
B
M
8
1
X
B
M
6
5
2
,
B
M
8
2
1
*
M
A
R
D
S
/
O
D
E
,
B
M
4
6
,
B
M
2
3
,
B
M
6
1
,
B
M
8
1
X
B
M
6
5
2
,
B
M
8
2
1
e
n
o
N
B
M
8
6
7
=
m
u
m
i
x
a
M
*
M
A
R
D
S
/
O
D
E
,
B
M
4
6
,
B
M
2
3
,
B
M
6
1
,
B
M
8
1
X
B
M
6
5
2
,
B
M
8
2
1
*
M
A
R
D
S
/
O
D
E
,
B
M
4
6
,
B
M
2
3
,
B
M
6
1
,
B
M
8
1
X
B
M
6
5
2
,
B
M
8
2
1
*
M
A
R
D
S
/
O
D
E
,
B
M
4
6
,
B
M
2
3
,
B
M
6
1
,
B
M
8
1
X
B
M
6
5
2
,
B
M
8
2
1
Figure 2
Table 1
