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2-13
Chapter 2: Installation
SGPIO
The T-SGPIO1 (Serial General Purpose Input/Output) header 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
T-SGPIO1 header to utilize SATA management functions on your system. See the table
below for pin definitions.
Power I2C
The JPI2C header is for power I2C, which may be used to monitor the status of the
power supply, fan and system temperature. See the table below for pin definitions.
2-7 Jumper Settings
Explanation of Jumpers
To modify the operation of the motherboard, 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 identified 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 motherboard
layout page for jumper locations.
Pin# Definition Pin# Definition
1NC 2NC
3 DataIn 4 DataOut
5 Load 6 Ground
7 Clock 8 NC
1
1. Note: NC indicates no connection.
Pin# Definition
1 Clock
2 Data
3 Power Fail
4 Ground
NOTE: On two-pin jumpers, "Closed" means the jumper is on and "Open"
means the jumper is off the pins.