How bad can a USD 20 power supply with fake wattage be? Let's check it out.
Here is a snippet:
"The Coolmax V-500 costs only USD 22 at Newegg.com and, therefore, we were very skeptical that it could deliver its labeled wattage, 500 W. Wattage, as we always explain, isn't everything. Let's see the other downsides of using a cheap power supply."