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20
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
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.
Warning! DO NOT use registered DIMMs! (Check with your memory dealer
for more information).
See www.tyan.com for the latest memory compatibility
information.
1
k
n
a
B
M
M
I
D
2
k
n
a
B
M
M
I
D
3
k
n
a
B
M
M
I
D
l
a
t
o
T
1
x
B
M
2
3
1
x
B
M
2
3
0
B
M
4
6
0
1
x
B
M
2
3
1
x
B
M
2
3
4
6
B
M
1
x
B
M
4
6
1
x
B
M
2
3
0
B
M
6
9
0
B
M
2
3
1
x
1
x
B
M
4
6
6
9
B
M
4
6
1
x
B
M
1
x
B
M
4
6
0
1
8
2
B
M
0
4
6
1
x
B
M
1
x
B
M
4
6
1
8
2
B
M
1
x
B
M
4
6
1
x
B
M
8
2
1
B
M
2
9
1
0
1
x
B
M
8
2
1
1
x
B
M
4
6
B
M
2
9
1
1
x
B
M
8
2
1
1
x
B
M
8
2
1
0
B
M
6
5
2
0
1
x
B
M
8
2
1
1
x
B
M
8
2
1
B
M
6
5
2
1
x
B
M
8
2
1
1
x
B
M
6
5
2
0
B
M
4
8
3
0
1
x
B
M
6
5
2
1
x
B
M
6
5
2
B
M
2
1
5
1
x
B
M
2
1
5
1
x
B
M
2
1
5
0
B
M
4
2
0
1
1
x
B
M
2
1
5
1
x
B
M
2
1
5
1
x
B
M
2
1
5
B
M
6
3
5
1
warning
168-pin DIMM
RFU
Buffered
Unbuffered
Figure 2-5
EEPROM
!
important!
