Só um pequeno aparte, enviei uma TX650 V2 para RMA e recebi uma RM650! Apesar da RM ser full modular e mais cara, será que em termos de fiabilidade fiquei na realidade com uma fonte melhor? (Seasonic vs CWT)
Obrigado!+ Responder
Esperemos que esta, depois de assentar a poeira das reviews, não sofra o mesmo destino.
There's no cost issue here - we have an approved vendor list. Anything that's on
the list can be used. The vendor list is highly scrutinized and severely limited
at the AX-level product. To get on the approved vendor list for AX the field
failure rates and other performance specs have to be exceptionally tight, which
is why we offer a 7 year warranty on those parts.
If Engineering has
approved 4 separate vendors for the AXi secondary caps, then whatever's in stock
and available can be built with those parts. You could buy one tomorrow and you
might get Rubycon, Taicon, Nippon-Chemicon, or whatever else was on our approved
vendor list.
Taicon is partially owned by Nichicon and the factory making
these caps makes them to the Japanese standards with the Japanese methodology.
The field failure rate is very, very low. Flex uses these caps on a lot of
server products that have even more stringent lifespan and performance
requirements than we do.
But then again, this is the internet, so I
expect a percentage of people will use this to wag their finger at us despite
having limited or no knowledge whatsoever of the lifespan or performance
requirements.
Just like people complained that we used "too fast" a fan
in one of our PSUs even though the fan maxed out at 60% duty cycle or something.
You
That
is great, but they are in no way Japanese capacitors as has been
advertised:
http://www.corsair.com/us/blog/ax-se...nical-overview
and
that is where your problem is going to be. Taiwan and mainland China
offices/factories/workers are not Japanese.
are 100% correct, and this is being addressed. Jon wrote that blog almost
immediately after he joined, and his unit (and most units) did have 100%
Japanese capacitors.
To be honest, until today, I'd assumed the AX series
was 100% Japanese caps too.
If somebody bought one based on that blog and
was upset by the capacitor choice, I'll make it right somehow. Whether it be a
replacement or whatever, we'll figure it out.
The last thing I want to do
is mislead anybody. I may be stupid sometimes, but I'm not trying to be
dishonest.
(http://www.jonnyguru.com/modules.php?name=NDArticles&op=Story2&ndar_id=8)With the cover off, we can see the primary side (input) on the left and secondary (output) side on the right. It is the secondary side where we'll be spending our time, as replacing the big primary filter cap will more than likely do absolutely nothing for performance. These rarely fail, and if they do you have bigger problems than dead caps.
(http://www.badcaps.net/forum/showthread.php?p=288058)Yeah, great marketing equipping...
I really 'love' those big fat japanese primary cap and than pretty cheap secondary caps. Like Su'scon or, in this case, Capxon or Samxon.
That doesn't make any sense!
From a technical point of view as the load on the primary cap is a joke. It almost never fails (and when it does it's mostly due to too high voltage)...
@CAT, big issues with capacitors tends to be the secondary not the primary, although a poor primary capacitor often puts higher work load on the secondary capacitors so poor primary will exacerbate issues with poor secondary capacitors.
Same goes for 85c vs 105c rateing on the primary, the primary never tends to get hot enough for it to be an issue but the secondary capacitors are more prone to heat issues, esp as they are often closer to the heat producing MOFETs and/or transistors
(http://forums.hexus.net/psus/270377-should-you-only-buy-corsair-power-supplys-2.html)The primary cap on an APFC power supply is essentially filtering from a boost circuit, just at very high voltage, something like 300v. Provided it's not too high as to prevent correct function of the following stages, slightly high ripple shouldn't impact the output, and slow degradation is likely to go unnoticed longer than the secondary caps whose performance directly affects output quality.
it's probably like the ones on the modular interface and are relatively low
stress