54
M
M
X
X
3
3
6
6
C
C
E
E
O
O
n
n
l
l
i
i
n
n
e
e
M
M
a
a
n
n
u
u
a
a
l
l
L
L
a
a
y
y
o
o
u
u
t
t
(
(
F
F
r
r
e
e
q
q
u
u
e
e
n
n
c
c
y
y
I
I
s
s
o
o
l
l
a
a
t
t
i
i
o
o
n
n
W
W
a
a
l
l
l
l
)
)
For high frequency operation, especially overclocking, layout is
the most important factor to make sure both chipset and CPU
are working in stable condition. The layout of this motherboard
implements AOpen’s unique design called “ Frequency Isolation
Wall”. Separating each critical portion of motherboard into
regions, where each region operates in a same or similar
frequency range, we can avoid cross talk and frequency
interference between each region’s operations and condition.
The trace length and route must be calculated carefully. For
example, the clock trace must be equal to length (not
necessarily as short as possible) so that clock skew will be
controlled within few a pico second (1/10
12
Sec)
Note: This diagram is only for example; it
may not look exactly the same with the
motherboard you purchased.
