Its a bad power supply but it could have caused damage to other components. Quote from a diablotek review
"With the PHD650, Diablotek seemingly tried to polish a turd with a turd and as such we got the expected outcome, a pile of crap. Given the horrible build quality of the unit and poor component selection of the unit that is hardly a startling result. With a current price of ~$49.99, users would be better off taking their cash and setting it on fire rather than buying this unit. There is quite literally no price point or situation where the Diablotek PHD650 should be a consideration for users as it failed almost every test possible today. Retailers and e-tailers should be ashamed to be selling such a product."