Intel GA-8IPXDR-E - Manual (Page 29)

Connector Introduction
2 9
JP_RST
JP_SPK-
JP_HD+
JP_HD-
JP_SPK+
JP_RST (Reset Button) Open: Normal Operation
Close: Reset hardware system
JP_HD (HDD Active LED) Pin 1: LED anode(+)
Pin 2: LED cathode(-)
JP_SPK (Speaker Connector) Pin 1: VCC(+)
Pin 2- Pin 3: NC
Pin 4: Data(-)
K) F_PANEL connector