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AOpen AX4B-533 Online Manual page 26

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AOpen provides a special and useful feature on this motherboard for overclockers. When you power-on the system, BIOS will
check last system
POST
status. If it succeeds, the BIOS will enable "Watch Dog Timer" function immediately, and set the CPU
FSB
frequency according to user's settings stored in BIOS. If system fails in BIOS POST, then "Watch Dog Timer" will reset the
system to reboot in five seconds. 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.
AOpen
Watch Dog
Timer
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Enable/Disable Signal
from BIOS
Countdown about
5 seconds if fails
in POST
BIOS
Reset Signal
Clock Generator
CPU
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CPU ID Signal
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