Gabe's opened his closet...

[Super Nade]

....and out comes tumbling the Huntkey Green Star 450 W Power...
http://www.hardwaresecrets.com/article/527/

This is probably the worst “branded” power supply we’ve seen in our life:
Well, at least it had the explosion going for it in the miscellaneous department. :D

Wolf, you need to do another "Blow this shit up" review. :)

[cypherpunks]

Wolf, you need to do another "Blow this shit up" review. :)

Seconded. I can't say how sick I am of review sites that never say anything negative. The job is to point out the differences, and if that means pointing out that the BFG 800's overcurrent protection is marginal (http://www.hardwaresecrets.com/article/525/7), so be it.

[jonnyGURU]

Yeah... not sure why the thermal protection didn't shut that thing down at 57°C, but oh well...

But if Hunykey is the worst he's seen... he needs to get out more! :D

[Oklahoma Wolf]

Wolf, you need to do another "Blow this shit up" review. :)

Maybe someday after I've caught up on the others I have lined up :D

[Spectre]

Seconded. I can't say how sick I am of review sites that never say anything negative. The job is to point out the differences, and if that means pointing out that the BFG 800's overcurrent protection is marginal (http://www.hardwaresecrets.com/article/525/7), so be it.

Lets think for a minute though. Gabe is pushing those beyond what they are rated for. Complaining about it is just pissing in the wind. For that matter if you want to go all tilting at windmills in some sort of Don Quixotesque trip you have to bitch about that fact then you have to bag all the Seasonic built units for same thing (see the Silencer review among others) to the same degree. Yeah troll something else :rolleyes:

[spursindonesia]

Yeah, with all due respect to Mr. Torres, how can you demand something that is not promised or declared in the first place ? If that 450w PSU can only provide a meager power @12v rail (combined), so be it, let the readers know, but going overboard by pushing the unit outside its spec, and making jufgement out of that, IMHO that's unprofessional.

You CAN push the limit on that particular unit, but FIRST prove it that it can do what the label claimed. After that, it's just a matter of knowing what the unit MIGHT be able to do -out of curiosity, not what it's SUPPOSED to be capable of.

[Spectre]

Yeah especially that Huntkey:

Analyzing our methodology after the unit exploded, we realized that we were pulling more power from the +12 V rails than the power supply supported. Even though we were inside the maximum currents supported by each individual rail, on this power supply the +12 V output has a maximum combined power of 286 W and we were pulling 384 W.

That isn't fair to blame the power supply. Especially considering you expect 32A @ 12v from an OLD low end power supply. That is simply not realistic by an stretch of the imagination and is not a "typical usage for systems available on the market today". And his data shows the unit doing more than its 12v rated capacity.

[Super Nade]

His point is that the OCP failed to kick in and shut the unit down when pushed beyond its rated capacity.

[Spectre]

His point is that the OCP failed to kick in and shut the unit down when pushed beyond its rated capacity.



Now beyond that it would require dinging all the Seasonic units that he has done the same thing to as well; as he pushed them past their capacity and their OCP didn't shut them down either. But instead with those units it is almost celebrated (why is that?). You can't have your cake and eat it too.


Additionally like said I there:

__________________________________________________ ____________
You can't support this claim with the data you presented:
But even if we respected the 286 W limit we would explode this power supply anyway, because what burned were the switching transistors, so the problem was the total load, not the individual loads on the secondary side (otherwise we would have burned components on the secondary side, not on the primary side).

You blew the unit up outside of its rated specification when it actually did do more than its rated 12v load in Test #4 when 12v1 was loaded to 13A and 12v2 was loaded to 12.5A for a total 12v load of 25.5A (306w) which is 20w above what it is rated for. Since the unit did do its 12v rated capacity did you get a second sample to see if the unit would do its full DC output capacity when loaded within specifications before pushing it beyond its specifications?
__________________________________________________ __________________

[Stefan555]

Gabe pulled 306W from the +12V rails in test four at a temperture of about 50°C. The unit is specified för 286W on +12V combined. Nothing to complain about.

All units in the LW-6XXXYY are specified with an out of spec noise, so its expected the noise is high in test 4.

AFAIK, the safety is normally in place on Huntkey PSU's, maybe an artifact.

As far as I see, its an honestly specified unit that held up quite well. Not the best unit, but not worse than average.

I noticed the UL number on the box is E175472 (Fore Point) and ATX1 ver 2.0, misprint?

[Spectre]

Sorry yeah test 4

[Stefan555]

Sorry yeah test 4

Didn't even see your post, I was typing mine when you posted:beer:

[D-Juice]

Another very popular low end "non-generic" PSU in Brasil. Most forum users from Brasil are avid to recommend this unit over Seventeams 420W BKV lol. I never understood why they jumped on such conclusions without no real tests....Sometimes reality bites you on the *** .

[jonnyGURU]

Gabe pulled 306W from the +12V rails in test four at a temperture of about 50°C. The unit is specified för 286W on +12V combined. Nothing to complain about.

I agree. Especially since this unit is rated at 25°C! So these tests didn't even take into account a de-rating curve.


AFAIK, the safety is normally in place on Huntkey PSU's, maybe an artifact.

Agree here too. It might be a cheap unit, but typically it WOULD shut down.


As far as I see, its an honestly specified unit that held up quite well. Not the best unit, but not worse than average.

Right. I have a Huntkey V-Power 550 in my daughter's machine. Only 250W from the wall, but quieter, runs cooler and more efficient than the Delta I took out of there.

[Super Nade]

Paul, what you said is essentially correct, but I think he is trying to point out the subtlety between a unit doing more than what it is rated to do (as a nice surprise) without blowing up and a unit that explodes. I suppose you can spin it either way, which is what would have happened if this unit shut down and did not blow up.

[Spectre]

Paul, what you said is essentially correct, but I think he is trying to point out the subtlety between a unit doing more than what it is rated to do (as a nice surprise) without blowing up and a unit that explodes. I suppose you can spin it either way, which is what would have happened if this unit shut down and did not blow up.

Yeah but when a unit explodes doing more than it is rated to do...how can you honestly bag on it for that? It did exactly what it said it would...and as Jon pointed out this unit actually did MORE than it said it would before it died. If we are going to bag on things for not doing more than they are supposed to do every Civic or Taurus is a piece of shit because they can't do 200+ mph like a Lambo can.

[HOOfan_1]

every Civic is a piece of shit because they can't do 200+ mph like a Lambo can.
Not even with fatty exhausts and cool air intakes and neon ground effects and wings on the back as big as a F-15's?

[Spectre]

Not even with fatty exhausts and cool air intakes and neon ground effects and wings on the back as big as a F-15's?

No that actually does make it a pice of shit. :D

[jonnyGURU]

Gabe pulled 306W from the +12V rails in test four at a temperture of about 50°C. The unit is specified för 286W on +12V combined. Nothing to complain about.

I actually talked to Gabe about this and am kind of siding with him at this point.

It's not the overload of the +12V that killed the PSU. When he did the autopsy he found that the primary switching transistor fried. So although the +12V capability seems to be under-stated, fact remains it can't sustain a 450W load regardless. He could have brought the +12V down and juiced up the +5V, it still would have blown up the same way.

[Spectre]

I actually talked to Gabe about this and am kind of siding with him at this point.

It's not the overload of the +12V that killed the PSU. When he did the autopsy he found that the primary switching transistor fried. So although the +12V capability seems to be under-stated, fact remains it can't sustain a 450W load regardless. He could have brought the +12V down and juiced up the +5V, it still would have blown up the same way.

But like I pointed out to him...what he wrote is that it would have blown at 286w on the 12v anyway...when in fact it would not have as he pushed more than 286w out of the 12v rail without it blowing.

[jonnyGURU]

Right. I agree there. The information comes across as contradicting. If he brought the +5V down, would it have still blown? Probably not.