Octek HAWK 486, Manual

Page: 28 / 97

INSTALLING COMPONENTS
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3-6
CONTROL OF SYSTEM SPEED
System speed can be controlled by hardware switch and
keyboard. Connector P4 is connected to the turbo switch of the case.
When the system speed is fast, the turbo LED of the case should be
turned on.
To change the speed by keyboard, use '-' and '+' of the numeric
keypad. Press 'Ctrl', 'Alt' and '-' for slow speed and Press 'Ctrl', 'Alt' and
'+' for fast speed.
Whenever the system speed is set to slow by turbo switch, it
cannot be changed by keyboard, and vice versa.
RESET CMOS SETUP INFORMATION
Sometimes, the improper setting of system setup may make the
system malfunction. In this case, turn off the power and disconnect the
external battery. Then place a jumper on JP3 (2-3) for a while. The
internal CMOS status register will be cleared. Then remove the jumper
and turn on the power. The BIOS finds the CMOS status register is reset
and regards the setup information as invalid. So it will prompt you to
correct the information. In normal operation, JP3 place in (1-2).