Raspberry Pi Forums

There are two open solder pads on the Pi 3 B. They are behind the USB port and labeled "Run". What are they for???

Also, there are two open solder pads at the opposite end of the 40 pin connector, on the bottom of the board. What component is missing or not needed???
Thanks, Mike

JMikeH wrote:There are two open solder pads on the Pi 3 B. They are behind the USB port and labeled "Run". What are they for???

Also, there are two open solder pads at the opposite end of the 40 pin connector, on the bottom of the board. What component is missing or not needed???
Thanks, Mike

The RUN port is like a reset. Shorting the 2 pins will start the RPi from a shutdown state. Useful to easily restart the RPi from a shutdown/ halt state instead of having to disconnect and reconnect power. You can install a 2 pin header or wires to a momentary type switch.

Do not use the RUN reset on a running system unless the system has already crashed and is not responsive. It's the same as removing / restoring power and may corrupt the SD if done on a properly running system.

I don't know what other pads you are referring to but there are many test pads which are used for testing during production. They are labeled PP1, PP2 etc.

I think the other two pads you are referring to are for an external antenna for the wifi.

I think he's referring to pads that resemble to micro usb surfacemount connector. But it's 8 pin.