Supermicro SuperServer 1029U-E Series User Manual page 63

Power LED
The Power LED connection is located on pins 15 and 16 of JF1.
NMI Button
The non-maskable interrupt button header is located on pins 19 and 20 of JF1.
Chapter 4: Motherboard Connections
Power LED
Pin Definitions (JF1)
Pin# Definition
15 3.3V
16 Power LED
NMI Button
Pin Definitions (JF1)
Pin# Definition
19 Control
20 Ground
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