GIGABYTE GA-8IR2003 - Manual (Page 25)

Hardware Installation Process
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8) PWR_LED
PWR_LED is connect with the system power indicator to indicate whether the system is on/off.
It will blink when the system enters suspend mode. If you use dual color LED, power LED will turn
to another color.
Pin No. Definition
1 MPD+
2 MPD-
3 MPD-
1
9) 2X_DET
When an AGP 2X (3.3V) card is installed the AGP_LED will light up, indicating a non-supported
graphics card is inserted. Informing users that system might not boot up normally due to AGP 2X
(3.3V) is not supported by the chipset.