The ugly truth? Most hardware-reviewing websites are ran by amateurs that think they should get as much hardware parts they can get their hands on – either to upgrade their personal computers or to sell them on eBay –, even if they don’t have a clue on how to review that particular part. They simply can’t say no to manufacturers offering products. Worse than that, there are some editors that think that only because a manufacturer sent them a product “for free†they should only say nice things about the product. This is obviously a veiled form of payola and not only unethical but illegal (at least in the United States). First, getting a product for reviewing is not “for freeâ€. The exposure the manufacturer will get on a particular website is worth thousands of dollars, since they are way more effective than traditional advertising – and reviews are posted free of change
And then Hardware Secret goes onto explain how a power supply unit should be tested.
Why 99% of Power Supply Reviews Are Wrong | Hardware Secrets