400W to 600W PSU's reviews

[Behemot]

After some time, I've looked to 500W PSU's section in one of the best on-line shop here in Czech Republic and almost couldn't believe my eyes; at least 15 new models there. The old ones I thought were relatively good (like Seasonic SS-500ET-F3, which I still use and have recaped after half a year of using; beside capacitors it was good one with not so bad semiconductors) have new revisions, usually 80+ Bronze but are so cheap that they are almost in category "better not buy" now.

I am surprised here is almost nothing about such important components PSU's are. Latest reviews I found by quick search are usually more than 2 years old. I think the reason is that not many people out there really understand this problematic. If there are some, it's not worth to test the PSU's for them. So ff you've seen some good articles about those new Power Supplies below (by good I mean they opened it, checked capacitors, semiconductors etc, measured noise using oscilloscope and effectivity with not so cheap wattmeter), please feel free to post it here. Better the 500W ones but I think most of lines have 400W to 600W models with just a tiny differencies.

In the end of searching, I'd like to make a short list of which PSU's are the cheapest ones which won't blow up your computer, than which are like "mainstream" and on top the best for some thinkable amount of money. For example some Thermaltake, OCZ and others can be just Enermax or Seasonic with better cooling and lower price, what is I would like to discover as well.

So which PSU's I would personally like to know more about (latest revisions on market if possible):
Seasonic SS-500ET-F3 500W Bronze OEM
Seasonic S12II-500 500W Bronze
Seasonic S12-550 550W ENERGY+
OCZ StealthXStream 500W
OCZ Fatal1ty 550W
OCZ ModXStream 500W
OCZ Z Series Silver 550W
Fortron FSP500-60EPN 500W 85PLUS Bronze
Fortron Blue Storm Pro 500W
Fortron Black Power 550W
Fortron Everest 80+ 500W
Fortron FSP550-80GLC(PFC) 550W
Thermaltake PurePower RX W0142RE 500W
Thermaltake TR2 Power W0101RE 550W
Thermaltake TR2 QFan W0194RE 500W
Thermaltake ToughPower QFan W0151R 500W
Thermaltake Dualpower 520W W0107 (this one maybe not necessarily, too pricey)
Nexus RX-5300 530W
Nexus NX-8050 500W
Cooler Master Real Power 520W
Chieftec APS-500S 500W
Chieftec GPS-500AB-A 500W (550AB-A 550W)
Chieftec APS-550C 550W
Silentmaxx EcoSilent 550W

I've also seen some LC Power pricier than Seasonic's OEM. Do they no longer burn your balls out (together with whole house)?
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Actuall 500 W PSU list (from the worst to the best):

4. Artic Cooling Fusion 550R 550W
3. Corsair Power Supply VX550 550W
2. Enermax ECO80+ 500W (recap recommended)
1. Enermax PRO82+ 525W
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Reviews found: (by noise I mean voltage noise or ripple, not acoustic noise)
http://www.anandtech.com/casecooling...oc.aspx?i=3516 the efficiency measurement is a bit strange I'd say; the worst PSU's has the best efficiency?; also the ripple is too smal, they probably use only passive load, thus making the noise of most PSU's in this test very bad under real conditions
Arctic Cooling Fusion 550R - great efficiency; bad caps, making high 100% load 12V noise, probably together with low quality semiconductors (for that price, it can't use some good )
Akasa Green Power AK-PT050FG, BFG LS-550 - similar design, great efficiency; BFG has far more worse noise (Teapo are that bad or it has worse semiconductors as well); BFG is noisy, too
Cooler Master RS-500-AMBA-D3 - great efficiency; again similar design, slightly better ripple, terrible capacitance on input (only 90 uF, don't want to see it after 100ms outage), I won't buy it till I have caps for changing on input; hot
Corsair CMPSU-520HX - great efficiency; Seasonic PCB, Hitachi cap on input, probably bad semiconductors makes the noise peaks which not-so-high capacity input Nippon Chemi-cons just can't flatten
Enermax Liberty Eco ELT500AWT-ECO - looks like using excellent semiconductors, but combined with bad caps; I would personally recap, but even without that it's good PSU, just a bit hotter one (on the other hand, it's more silent though)
OCZ ModXStream Pro OCZ500MXSP - bad caps, small heatsinks, great ripple - probably excellent quality semiconductors (not generating much heat), but is more noisy
Sunbeam Tuniq Potency POT550 - same design, looks like using much worse semiconductors; not so silent
Seasonic M12II SS-500GM, Seasonic S12II SS-500GB - good caps, but the noise makes me feel Seasonic uses bad semiconductors in lowend to mainstream PSU's it makes; both are not much silent
Tagan SuperRock TG500-U33II - similar to Akasa Green Power AK-PT050FG and BFG LS-550, noise could be better; hot
Tagan PipeRock BZ500 - bad caps, hot
http://www.hardwaresecrets.com/article/882/
Zalman ZM500-RS - bad caps resulting in terrible ripple at 100% load; 80.8-85.6 % efficiency (115 V), breaks specifications during overloading
http://www.hardwaresecrets.com/article/798
StealthXStream 500 W - good semiconductors, bad caps, but still excellent 12V noise; 79.4-83.4 % efficiency (115 V), 500W maximal output (nothing more)
http://www.hardwaresecrets.com/article/779/
BFG LS-550 (550 W) - bad output caps, good semiconductors, good noise; 80.3-85.7 % efficiency (115 V), 625W total maximum output
http://www.hardwaresecrets.com/article/548/
http://www.hardwaresecrets.com/article/732
BFG LS-450 (450 W) - downgraded version of LS-550, same pluses, same minuses; 84.4-89.8 % efficiency (115 V) is just excellent, 539 W total maximum output; recommended; just hope capacitors wouldn't up too soon (recap recommended)
http://www.hardwaresecrets.com/article/548
SilverStone Strider ST50F (500 W) - bad caps, good semiconductors, good ripple, 80.6-86.5 % efficiency (115 V), 599 W total maximum output
http://www.hardwaresecrets.com/article/673/
Zalman ZM460B-APS (460 W) - identical to SilverStone Strider ST50F bad caps, good semiconductors, very good ripple, 80.5-85.6 % efficiency (115 V), 531 W total maximum output
http://www.hardwaresecrets.com/article/782/
ASUS P-50GA (500 W) - bad output caps, slightly worse semiconductors (and with lower wattage gap) mainly for 3,3V and 5V rails; just 75.5-81 % efficiency (115 V), 687 W total maximum output
http://www.hardwaresecrets.com/article/728
Cooler Master eXtreme Power Plus (500 W) RS-500-PCAR-A3 - bad caps, not so good semiconductors, both resulting in so high noise it doesn't pass specs in higher load; 73.7-81.3 % efficiency (115 V); never ever buy this one
http://www.hardwaresecrets.com/article/688
Enermax Liberty ECO (500 W) ELT500AWT-ECO - bad output caps, good semiconductors, nice concept; 80.5-84.7 % efficiency (115 V), 572 W total maximum output, recommended
http://www.hardwaresecrets.com/article/731
Akasa Paxpower (500 W) AK-P050FG7 - bad caps, good semiconductors, good noise; 76.2-81 % efficiency (115 V), 624 W total maximum output
http://www.hardwaresecrets.com/article/730/
Thermaltake Litepower (450 W) W0293RU - FSP PCB, bad caps, overspec'd semiconductors, good ripple; 82.5-85.3 % efficiency (115 V), 543 W maximum total output
http://www.hardwaresecrets.com/article/713/
Arctic Cooling Fusion 550RF (500 W) - Seasonic PCB, thin wires, bad output caps, good noise; 83.2-89.8 % efficiency (115 V), 545 W maximum total output; recommended after recap and wires change
http://www.hardwaresecrets.com/article/727/
Seventeam ST-550P-AM (550 W) - good caps, good semiconductors (with some little inductances on electrodes ), nice ripple; 79.8-83 % efficiency (115 V), 671 W maximum total output; recommended
http://www.hardwaresecrets.com/article/657/
Seventeam ST-550P-AG (550 W) - older than ST-550P-AM, some bad output caps, good semiconductors (somewhat less inductances), worse ripple; 76.6-82.9 % efficiency (115 V), 630 W maximum total output
http://www.hardwaresecrets.com/article/540/
Corsair VX450W (450 W) - Seasonic PCB, high quality capacitors, good noise levels, 84.3-88.1 % efficiency (115 V), 572 W maximum total output; recommended
http://www.hardwaresecrets.com/article/526/
Antec EarthWatts 500 (500 W) - same Seasonic PCB as Corsair VX450W and Arctic Cooling Fusion 550RF, bad output caps, 90mm fan; excellent ripple (but how long with OST caps?), 79.8-84.8 % efficiency (115 V), 577 W total maximum output
http://www.hardwaresecrets.com/article/668/
Huntkey Green Star 550 W (LW-6550SG) - very bad, underestimated components, bad caps; never ever buy this one