Gigabyte GA-K8N51GMF User Manual page 23

12) POWER_LED
The PWR_LED connector is connected with the system power indicator to indicate whether the
system is on/off. It will blink when the system enters suspend mode.
13) CI (Chassis Intrusion, Case Open)
This 2-pin connector allows your system to detect if the chassis cover is removed. You can check
the "Case Opened" status in BIOS Setup.
Pin No.
1
2
1
3
Pin No.
1
1
2
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Definition
MPD+
MPD-
MPD-
Definition
Signal
GND
Hardware Installation