300W to 450W: 20 Power Supplies on the Test Bench
by Christoph Katzer on December 31, 2008 6:00 AM EST- Posted in
- Cases/Cooling/PSUs
HEC HEC-350TE-2WX 350W
HEC (or COMPUCASE) has been making power supplies and other products for quite a while now. We have to admit that we never liked anything from the company to date because we have seen mostly passive PFC topologies when active PFC was being utilized by the competition for some time. You can say HEC is conservative with everything they do, as the designs and limited number of retail products suggests. In fact, we always wanted to get retail models from HEC and we were promised them in the past, but they never arrived in our labs. This is why we also acquired this unit from friends rather than HEC itself. It comes in grey and sports two 12V rails with 14A each and a combined power of 276W. It is cooled by a 120mm fan.
Looking inside of this unit shows a similar heatsink design to what we saw in the FSP units. This time they look somewhat massive and at least have the slightest touch of fins. The lack of a large coil suggests active PFC, which makes this unit the first one we have seen from HEC without passive PFC. All the capacitors are made by Teapo and the fan comes from Young Lin Tech.
With HEC we have the same problem as we have seen with the OEM model of FSP. The cables are so short that we can't actually see them being usable in anything other than small Micro ATX chassis. The length of the 24-pin and 4-pin connectors of just 30cm is too short for anything else.
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Christoph Katzer - Wednesday, December 31, 2008 - link
We cannot run after every brand there is and if those companies don't come to us... there are surely many more missing but we can only test products from companies that are actually interested in us testing their stuff. We had an Akasa unit before though...boboko - Sunday, January 4, 2009 - link
>"We cannot run after every brand there is and if those companies don't come to us..."I guess that is the problem with almost all review sites. And the worst thing is not that you skip the smaller guys, but that what you are reviewing is not off the shelf, it's sent to you buy a company that wants a good review. So even if they have rotten quality control, and half their stuff is DOA, you know the one they send you has been triple checked and fine tuned. Not your fault, but to me the reliability is MUCH more important than a few extra watts or a few less decibels, and there's just no way to get good data on that.
Griswold - Wednesday, January 7, 2009 - link
If you read the reviews here, you'd know that this assumption is false in general. AT has had junk on their bench on more than one occassion - if every supplier would do what you claim, all reviews would take place in happy bunny land where everything is dandy and no negative notion is possible. But thats not the case.Surely there will be those who go the extra mile to make their product look better than it is off the shelf, but you just cant hide every trace of incompetence and bad quality.
Much like we cant expect a review site buy every piece of hardware to test it and hope they can re-sell it without a loss.
marc1000 - Thursday, January 1, 2009 - link
wow, I know it was said before, but you guys really do listen to us. that's the reason I come here everyday to know the news! keep up the good job at 2009! regards!C'DaleRider - Wednesday, December 31, 2008 - link
I'm just curious why the "old" version of the Antec Earthwatts 430 was dug out and retested since Seasonic is no longer the OEM for it but now has Delta as the OEM supplier and has been for many months now.Seems it'd be only fitting that the "new" version would be tested instead of a version no longer being made or sold, except as NOS (new old stock).
Christoph Katzer - Wednesday, December 31, 2008 - link
If only "someone" could send it to us :] I will make sure to get new revision on time, you're totally right.sprockkets - Wednesday, December 31, 2008 - link
What were those bad things happening to the SII Seasonic PS?JarredWalton - Wednesday, December 31, 2008 - link
I believe Christoph is just saying that he's received an increase number of email messages from people saying that their Seasonic PSUs have failed. It's anecdotal at best, and it could just be a case of more people buying their PSUs and thus a small fraction that fails can still result in more complaints than before.Christoph Katzer - Wednesday, December 31, 2008 - link
Yes ;)There was a revision in the beginning that had problems with certain motherboards somehow, something to do with the "power good" signal. They've upgraded the series long time ago though.
Lonyo - Wednesday, December 31, 2008 - link
I'd just ordered some new parts, including a CX400 about 30 minutes before I saw this article come up.Nice to see that my choice seems fairly solid.
I'm sure this article will be relevant for other people as well.