18
A
A
X
X
4
4
5
5
/
/
A
A
X
X
4
4
5
5
-
-
V
V
O
O
n
n
l
l
i
i
n
n
e
e
M
M
a
a
n
n
u
u
a
a
l
l
A
A
b
b
o
o
u
u
t
t
“
“
O
O
p
p
t
t
i
i
o
o
n
n
a
a
l
l
”
”
a
a
n
n
d
d
“
“
U
U
p
p
g
g
r
r
a
a
d
d
e
e
O
O
p
p
t
t
i
i
o
o
n
n
a
a
l
l
”
”
…
…
When you read this online manual and start to assemble your computer system, you may find some of functions are called “Optional”, and
some are called “Upgrade Optional”. Though all AOpen motherboards include many amazing and powerful features, in some situations,
these powerful features are not used to every user. Hence, we changed some key features as “Optional” for you to choose. Some optional
functions that can be upgraded by users, we call them “Upgrade Optional”. As for those optional functions that can’t be upgraded by
ourselves, we call them “Optional”. If needed, you can contact our local distributors or resellers for purchasing “Upgrade Optional”
components, and again you can visit AOpen official web site:
for more detail information.
