This question might sound silly for a lot of people who work with #electronics every day… but the centre pin in these barrel plugs always is the positive contact, right?

Don't have the power supply for this OptiPlex 5050, I do have a fitting 65W USB-C PD adapter board though and want to use that instead. I'm just… decently scared of screwing up something since I can't test it with the original power adapter beforehand.
#diy #soldering