26
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
A
”
”
A
O
O
p
p
e
e
n
n
“
“
W
W
a
a
t
t
c
c
h
h
D
D
o
o
g
g
T
T
i
i
m
m
e
e
r
r
With this motherboard, AOpen provides a very special, useful feature for overclockers. When you power-on the system, the
BIOS will check last system
status. If it succeeded, the BIOS will enable “Watch Dog Timer” function immediately, and set
the CPU
frequency by user’s setting that stored in the BIOS. If system failed in BIOS POST, the “Watch Dog Timer” will
reset the system to reboot in five seconds. Then, BIOS will detect the CPU’s default frequency and POST again. With this
special feature, you can easily overclock your system to get higher system performance, and without removing the cover of
ystem housing to set the jumper to clear CMOS data when your system hanged.
s
BIOS
Clock Generator
CPU
AOpen
Watch Dog
Timer
CPU ID Signal
Enable/Disable Signal
in POST
Re
wn about
5 seconds if fails
Countdo
set Signal
from BIOS
