darthwolf

For powering on electronic components and circuits before you connect them to other stuff (and checking if they're faulty).

Thank you, I always try to make my projects as simple as possible to build.

The negative rails do not provide nearly the same amperage so you could end up overloading your PSU. Also, since there is only one -12v wire you wouldn't be able to combine it with others.I think I understand what you mean but I don't see a way you could do that with the PSU.

That one I often use when testing the LEDs.

Hey, thanks, though I feel that's it's more rugged than fancy :)

Hey, thanks, though I feel more that's it's rugged than fancy :)

Thank you!

Hey there! It is used for testing of electronics before you connect them with others or put them in enclosures. Lets say you make a LED USB powered light but you don't want to put it into your computer on the first run in case crossed wires or reversed the positive and negative. So if it malfunctions it's gonna damage the old cheap power supply instead of your 1000$ computer :)

That's correct. If you connect +12v and -12v rails you get 24v.

Cheers!

All black solid wires are ground, yes :)

+12V2 is second rail that supplies processors voltage regulator circuit on motherboard. while +12V1 supplies the graphics card, fans and motors of HDD and CD/DVD. They each have an overload sensor to protect the various circuits; a short on those will immediately shut down the PSU.

Actually it is variable in the means that you can combine +12v and -12v to get 24v, +5v and -12v to get 17v DC and +12v and +5v to get 7v :)

Several reasons, first of them being the device is on 24/7 while being enclosed in wood. As wood is a heat insulator and not heat conductor like aluminum I wanted to have a fan for air circulation. Second reason is that small fans need to spin much faster thus making noise while a big fan on lower RPM dispenses gets same circulation while also being almost completely quiet.Third reason being Pi 3 gets much warmer than it's predecessors under load; even up to 83 °C.

That's completely o.k. I still prefer to keep extra airflow on anything that is a wooden enclosure for electronics or as the old saying goes: better safe than sorry. :)

Thank you :)

Hope it works, nicely done :)