The Intel® NUC Board 5i7RYB works with 12 or 19V DC. The internal (Auxiliary Power Connector) supports the same voltage. More information in the Technical specifications sheet of the NUC.
24V DC is not supported by the board.
Thank you Mike!
From your link:
Power Supply Connector
The board has the following power supply connector:
• External Power Supply-the board can be powered through a 12-19 V DC connector on the back panel.
The back panel DC connector is compatible with a 5.5 mm/OD (outer diameter) and 2.5 mm/ID (inner diameter) plug, where the inner contact is +12-19 (±10%) VDC and the shell is GND. The maximum current rating is 10A.
It look like I can go as high as 19.5V to 20V on the power supply? I am asking because I need to work with the supplies I have available to me.
Thanks so much for your time and help.
I wouldn't recommend using a supply with a rating above 19V. The +/-10% is to allow for variance in the circuitry (based upon current draw, etc. and etc.). If you use a 20V supply that happens to have a variance itself of, say, +10%, you could end up doing damage...
Only the paranoid survive...
The power supply I have is a 20V linear but can be trimmed to 19.5V Load and line regulation is +/-0.005% or at the nominal would be 19.49 - 19.51 VDC. The ripple is 0.25 mV.
This is within the 19VDC the +/- 10% specification of the NUC PCB, No?
I don't want to be cavalier in my answer. It seems reasonable, but you are still taking a chance - albeit educated - and doing so at your own expense...
We have used NUC5i3RYH for a while with 25v connected to it's external 'plug'. However we have never pushed the system to maximum load / power consumption, so I think we never stressed the regulators.
Sure would be interesting to know how much power could actually be pushed through the NUC on a continuous basis just before the thing "smokes". Then, follow up with a test to see just how much power would be required to burn-out the board (like a "max power limit test").