The header typically features a standard 9-pin layout (9 pins within a 10-pin grid, missing one pin as an alignment key). Pin Number Signal Name Connected To Cable Wire Color Hard Drive Activity Light (+) Colored Wire Pin 2 FP_PWR_SLP + Power LED Status (+) Colored Wire Pin 3 Hard Drive Activity Light (-) White/Black Wire Pin 4 FP_PWR_SLP - Power LED Status (-) White/Black Wire Pin 5 Reset Switch Ground (-) White/Black Wire Pin 6 Power Switch Signal (+) Colored Wire Pin 7 Reset Switch Signal (+) Colored Wire Pin 8 Power Switch Ground (-) White/Black Wire Pin 9 No Pin (Empty) None 5. Audio and USB Internal Headers Front Panel Audio (F_AUDIO)
Connect the Power SW cable here. Polarity does not matter for the switch. Acer H81h3-am V1.0 Manual