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S
UPERSERVER 6025B-TR+/6025B-8R+ User's Manual
SGPIO
The two headers labeled SGPIO1 and SGPIO2 are for SGPIO (Serial General
Purpose Input/Output). SGPIO provides a bus between the SATA controller and the
SATA drive backplane to provide SATA enclosure management functions. Connect
the appropriate cables from the backplane to the SGPIO1 and SGPIO2 headers to
utilize SATA management functions on your system.
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
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 jumping pins
1 and 2. Refer to the serverboard
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.
CMOS Clear
JBT1 is used to clear CMOS and 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.
Connector
Pins
Jumper
Setting
5-18
3
2
1
3
2
1
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