PSU tier list 2.0

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So I have a low end PSU here, and cannot find any information on it. It's a Rosewill model aps 450-ccp. It came with a case (I think it was perhaps $40 with the case + PSU, maybe even less). I've had this power supply for a long time, as it was the first one I owned when I built my first computer back in August 2014 (when I had absolutely no idea about anything with power supplies and figured buying one with a case would be easiest).

I'm quite curious as to actually the quality of it (obviously horrible). It ran a Pentium with no GPU 24/7 for about 5 months before I upgraded to an EVGA 500W (yeah not much of an upgrade, but like I said, I knew a lot less then). If I plug it in now and flip on the switch (with no PC components even connected to it), it makes a high pitch noise. Right now I only use it for grounding myself when working on my PC.

I don't see any information about it online.

I'm tempted to take it apart and analyze the internals. Here's the link of one on Ebay http://www.ebay.com/itm/Rosewill-APS-450CCP-450W-Power-Supply-Ships-in-24-hours-/161877651343
 
Been meaning to post this:

17-163-018-06.JPG


It was a Newegg promotional image.
 


That's why I decided not to open my cheap PSU. I was reading that apparently there's a lot of stuff that can shock you.
 
So it seems that it's not only the 1000W EVGA G2 that uses Capxon on the secondary, but also the 1300W. And these are electrolytic capacitors. Not polymers, guys (well, a good mixture of both). So, what are the excuses now? Look at all these red Capxons.
IonYZGp.jpg
 
Depends. Caps have more than 1 purpose. Caps used as part of a filter circuit don't take near the same amount of abuse as the primary or even secondary circuits, so even CapXon caps are well within tolerances of what's used.
 
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