http://www.hardwaresecrets.com/article/668/8

wanna see huntkey v-power 550W go KABOOM when loading it with 550W of power? Really shocking. Apparently the perfect wattage output is 60% (330W) of stated 550W load, reaching the efficiency of 80%+. When a load of 80% (440W), the efficiency drops to 70%+. When a 100% load (550W) is applied, it exploded.

"If you follow closely our power supply reviews you know that two models we reviewed from Huntkey Green Star series – 400 W, sold in the US as Dynex 400 W, and 450 W – exploded during our tests. So we decided to get a more “powerful” model, V-Power 550 W, to see if it has the same fate as its sisters. Is V-Power 550 W a good power supply or it is as flawed as the members from the Green Star family? Check it out.

The funny thing is that the manufacturer's website lists both rails at 18 A but the sticker clearly lists one rail at 16 A and the other at 18 A. But, like we already explained, this unit uses exactly the same rectifiers as used on Green Star 400 W and Green Star 450 W from the same manufacturer.

What exploded were the two switching transistors. When the power supply explodes it means that the primary side is under dimensioned. When the secondary side is under dimensioned the power supply dies silently, because when a rectifier burns the short-circuit protection enters immediately in action shutting down the power supply.

So Huntkey should have used more powerful transistors and added a heatsink to the rectifying bridge, plus using rectifiers with higher current limits for the +12 V output."


Marketing gimmick. 550W my ass.

If u have high end cpu, spend a few hundred bucks more on PC&C or Corsair/OCZ or other brands that uses the same OEM with the brands mentioned.



This post has been edited by pekies: Dec 12 2008, 12:23 AM

Huntkey 550W should work fine with most system with 1 powerful GC up to 9800GTX+/4870 as for a typical system of 2HDD, C2D of TDP 65W, 4 sticks of rams, 1 DVDRAM, and a few bling blings in ur casing, the power draw is about 400W or less, which as shown to achieve an efficiency of 80%+.

Big problem (as in explosion) will arise when u do a crossfire/SLi setup with this 550W PSU. A dual GPU setup easily drains 500W of power which, if the video is true, will explode.

Conclusion is if u're using a single GPU setup, huntkey 550W should do just fine with 80+ efficiency. If u assume huntkey 550W to be "Pure Power" and do a 4850 CF/8800GT SLi (a pure power 550W should do the job), prepare to see fireworks.

edited

sorry wrong post

This post has been edited by pekies: Mar 5 2009, 10:41 PM