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5-9
Jumper Settings
Explanation of Jumpers
To modify the operation of the
serverboard, jumpers can be used
to choose between optional settings.
Jumpers create shorts between two
pins to change the function of the con-
nector. Pin 1 is identified with a square
solder pad on the printed circuit board.
See the serverboard layout pages for
jumper locations.
Note: On a two-pin jumper, "Closed"
means the jumper is on both pins and
"Open" means the jumper is either on
only one pin or completely removed.
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,
1. First power down the system and unplug the power cord(s).
2. With the power disconnected, short the CMOS pads with a metal object such
as a small screwdriver.
3. Remove the screwdriver (or shorting device).
4. Reconnect the power cord(s) and power on the system.
Note: Do not use the PW_ON connector to clear CMOS.
GLAN Enable/Disable
JPL1 enable or disable the GLAN ports on
the X9DAX-iF/7F and the 10GLAN ports
on the X9DAX-iTF/7TF. See the table on
the right for jumper settings. The default
setting is Enabled.
Chapter 5: Advanced Serverboard Setup
Connector
Jumper Setting Definition
1-2
2-3
5-23
3
2
Pins
Jumper
3
2
Setting
GLAN/10GLAN Enable
Jumper Settings
Enabled (default)
Disabled
1
1
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