(09-01-2018, 05:54 PM)Firesped Wrote: What are the leads marked PWR, GND, REC, GND for next to the headphone/mic port?
the REC should be "RES" and sorry on the typo. "PWR" is Power On Switch and "REC" is Reset Switch.
The four pins is the mirror to the reset and power on switches and allows developers, especially casing that has its own power and reset buttons to derive out these two signals. Original plan to put a connector there but worry about block with PCIe card. you may ask where put the connector on this place that knowing may block PCIe card, the answer is layout engineer already runs out of idea on the suitable place.