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H8QI6/i-F Serverboard User's Manual
2-14
2-8 Jumper Settings
Explanation of Jumpers
To modify the operation of the motherboard,
jumpers can be used to choose between
optional settings. Jumpers create shorts be-
tween two pins to change the function of the
connector. Pin 1 is identifi ed with a square
solder pad on the printed circuit board. See
the diagram at right for an example of jump-
ing pins 1 and 2. Refer to the motherboard
layout page for jumper locations.
Note: On two-pin jumpers, "Closed" means
the jumper is on and "Open" means the
jumper is off the pins.
Connector
Pins
Jumper
Setting
3 2 1
3 2 1
CMOS Clear
JBT1 is used to clear CMOS, which will also clear any passwords. Instead of pins,
this jumper consists of contact pads to prevent accidentally clearing the contents
of CMOS.
To Clear CMOS
First power down the system and unplug the power cord(s).1.
With the power disconnected, short the CMOS pads with a metal object such 2.
as a small screwdriver.
Remove the screwdriver (or shorting device).3.
Reconnect the power cord(s) and power on the system.4.
Note: Do not use the PW_ON connector to clear CMOS.
JBT1 contact pads