65
A
A
X
X
4
4
L
L
/
/
A
A
X
X
4
4
L
L
-
-
N
N
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,
chipset and CPU working in stable condition. The
layout is the most important factor to make sure
implements AOpen’s
cy Isolation Wall”.
ion of motherboard into
es in a same or
avoid cross talk and
een each region’s
ce length and route
example, the clock
necessarily as short
will be controlled
12
Sec)
layout of this motherboard
unique design called “ Frequen
Separating each critical port
reg
similar freque
freq
opera
mu
For
trace must be equal length (not
as possible) so that clock skew
within few a pico second (1/10
le only, it may not be exactly the same as this motherboard.
Note: This diagram for examp
ions where each region operat
ncy range to
uency interference betw
tions and condition. The tra
st be calculated carefully.
