power supplies

So I bought one of these from aliexpress and while it is working, kinda, I'm having weird issues with it. 1. It is more stable when I power it up with a 24V power supply (360w), as compared to a 19V power brick (240w). 2. It clearly CANNOT give me 180w of 12V power, not even for a brief...

Hi. I'm relatively new to SFF building and PC building in general. I bought a 250w pico psu and it has been working well powering my i5 7400 and 2x8gb of ddr4 2133 ram. I was using a 12v 10a portable charger with a lot of adapters to plug into the pico psu (kinda a bad solution). I just bought a...