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Chapter 2
Board Installation
The Trinity KT-A uses a 64-bit data path from memory to CPU and can accommodate
up to 1.5GB of SDRAM. The 168-pin DIMMs (Dual In-line Memory Modules) must
!
be of the 3.3V, unbuffered variety. The position of the notch in the SDRAM key
position will tell you whether or not a DIMM is unbuffered (see the Figure 2-5
important!
below). All installed memory will be automatically detected, so there is no need to set
any jumpers.
Some details of memory installation:
• The mainboard supports 32MB, 64MB, 128MB, and 256MB unbuffered SDRAM.
• ECC, registered memory is NOT supported.
The table below shows some of the possible memory configurations. Not all
possible configurations are listed.
D
I
M
M
3
2
M
6
4
M
6
4
M
6
4
M
1
2
8
1
2
8
5
1
2
5
1
2
Warning! DO NOT use registered DIMMs! (Check with your memory dealer
warning
for more information). See www.tyan.com for the latest memory compatibility
information.
Unbuffered
RFU
Buffered
B
a
n
k
1
D
I
M
M
B
x
1
3
2
M
0
3
2
M
B
x
1
3
2
M
0
3
2
M
6
4
M
B
x
1
0
6
4
M
B
x
1
1
2
8
M
0
1
2
8
M
M
B
x
1
1
2
8
M
0
1
2
8
M
M
B
x
1
2
5
6
M
0
2
5
6
M
M
B
x
1
5
1
2
M
M
B
x
1
5
1
2
M
168-pin DIMM
Figure 2-5
B
a
n
k
2
D
I
M
M
B
B
x
1
0
B
x
1
3
2
M
B
B
x
1
0
x
1
6
4
M
B
B
B
x
1
0
6
4
M
B
B
x
1
B
x
1
B
x
1
6
4
M
B
B
x
1
0
B
x
1
1
2
8
M
0
B
x
1
B
x
1
2
5
6
M
B
x
1
0
B
x
1
5
1
2
M
20
EEPROM
a
n
k
3
T
o
t
a
6
4
M
B
x
1
6
4
M
9
6
M
x
1
9
6
M
2
8
1
M
x
1
2
8
1
M
1
9
2
M
x
1
1
9
2
M
2
5
6
M
B
x
1
2
5
6
M
3
8
4
M
B
x
1
5
1
2
M
1
0
2
4
M
B
x
1
1
5
3
6
M
http://www.tyan.com
l
B
B
B
B
B
B
B
B
B
B
B
B
B
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