User Guide

25
A
A
X
X
4
4
5
5
-
-
8
8
X
X
/
/
A
A
X
X
4
4
5
5
-
-
8
8
X
X
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
A
A
B
B
S
S
”
”
AOpen provides a special and useful feature on this motherboard for overclockers. When you
power-on the system, the BIOS will check last system POST
status. If it succeeded, the BIOS will
enable “Watch Dog Timer” function immediately, and set the CPU FSB
frequency according to user’s
settings stored in the BIOS. If system failed in BIOS POST, the “Watch Dog ABS” 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 a higher system performance without removing the system housing and save the hassle from setting the
jumper to clear CMOS data when system hangs.
BIOS
Clock Generator
CPU
AOpen
Watch Dog ABS
CPU ID Signal
Enable/Disable Signal from
BIOS
Reset Signal
Countdown about
5 seconds if fails
in POST