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Review: HEXUS PSU (Power Supply Unit) Roundup - Taoyuan 2005

by Ryszard Sommefeldt on 23 September 2005, 00:00

Tags: Aopen, Enermax (8093.TWO), Zalman (090120.KQ), Akasa, Thermaltake (3540.TWO), OCZ (NASDAQ:OCZ), Tagan, SilverstoneTek, FSP Group (TPE:3015), Hiper, ETASIS

Quick Link: HEXUS.net/qabkp

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Thirty Four Supplies. Erk.

We try not to do things by halves here at HEXUS, so instead of testing a handful of supplies we tested nearly three dozen instead. The range of units tested encompasses everything from the very low-end budget supplies with modest output and a modicum of connectors, right up to 600W+ server-class supplies with every connector conceivable, multiple independent 12V rails and a price tag to match. We were very careful to use retail power supplies for our testing, mindful of not falling into the trap of asking manufacturers for supplies only to have special units sent which stand up more than a retail unit would. That said, that couldn't be avoided for a few units, the majority of which were engineering samples of new products about to hit market and therefore not for general sale by matter of course. Yet.

I've been very careful to mark supplies that aren't full retail units we've bought as such, so you can tell them apart. The best way to convey the information from 34 PSU SKUs is in a huge table.

ModelStated Output Power
Allied AL-250ATX250WQuick Link
FSP Group FSP250-50NWV(PF)250WQuick Link
Etasis EFN-300285WQuick Link
Aopen A0300-12AHNF300WQuick Link
Zalman ZM300B-APS300WQuick Link
FSP Group FSP300-60GNF300WQuick Link
Silverstone ST30NF300WQuick Link
Qtechnology QT-03350G350WQuick Link
Hiper Power HPU-3S350-UK350WQuick Link
FSP Group FSP400-60GLN400WQuick Link
Zalman ZM400B-APS400WQuick Link
Akasa AK-P400FG BKEUV3400WQuick Link
Qtechnology QT-03460G460WQuick Link
Thermaltake Pure Power-460460WQuick Link
Akasa AK-P460FG BK460WQuick Link
Thermaltake Pure Power-480APD480WQuick Link
Tagan TG480-U01480WQuick Link
Tagan TG480-U01480WQuick Link
Hiper Type-R Series 480W480WQuick Link
SSM Technology EVP-5007-00500WQuick Link
FSP Group BlueStorm 500500WQuick Link
Thermaltake Pure Power TWV500500WQuick Link
OCZ OCZ-520 U12520WQuick Link
Enermax EG565AX-VE(G)535WQuick Link
FSP Group FSP550-60 PLN550WQuick Link
Akasa AK-P550FF BK550WQuick Link
Silentmaxx IC Tech 580W580WQuick Link
OCZ Powerstream 600600WQuick Link
Enermax EG701AX-VE600WQuick Link
Qtec 650W Triple Fan650WQuick Link
FSP Group FSP650-80GLN650WQuick Link
Akasa AK-P650FF BK650WQuick Link
Silverstone ST65ZF650WQuick Link
Aopen AO700-12ALN700WQuick Link

The list spans everything from small 250W units designed for older PCs, right up to physically large server-class supplies with EPS connectors rated to massive output power. There are some exceptions to our "we bought all the units and shipped them" rule, too. PSUs with names this colour are engineering samples of new PSU SKUs that AOpen, FSP and Akasa wanted us to look at while we were there, which we decided to throw into the mix. All the engineering samples are in the final throws of pre-production and will be on sale very soon, if they aren't already.

PSUs with names this colour were supplied by the vendor themselves. Tagan sent over a TG480-U01 to pair with the one we'd bought and brought ourselves and Silverstone hand-delivered three units on the last day of testing, driven over from their offices in Taipei, after hearing we didn't have any of their stuff on test. Lastly, an output power in this colour of which there's only a couple, is one where the manufacturer had admitted that it's a peak power and it's outwardly stated as such somewhere on the box, literature supplied or on the unit itself.

Given that the list of PSUs cover such a wide spectrum of units, in terms of output power, connectors, PSU spec and more, our test procedures and considerations were a little more involved than a plug-em-in-and-see-what-happens affair.

15920W of output power, supposedly!
Power supplies with a combined output power of nearly 16000W sit pretty after a week-long torture session