BoBzeBuilder wrote:What's your budget and how much power do you need exactly?
If that BFG PSU is working fine, I don't see much sense in replacing it, unless lower noise is worth the $$$ to you.
This is one of the best PSUs around, very quiet and efficient, but expensive.
http://www.newegg.com/Product/Product.a ... 6817151088
This is also a solid choice
http://www.newegg.com/Product/Product.a ... 6817139012
620HX vs 650HX, the latter has 30watts more power and is slightly more efficient, 85% vs 80%.
eric93se wrote:Or if you like to tinker and are competent enough to not electrocute yourself you could replace the fan in your current PSU.
maybe the 120mm Scythe Gentle Typhoon D1225C12B4AP-14 Case Fan (45.9 CFM/21 dBA)
JJCDAD wrote:The 620HX has 3 +12v rails whereas the 650HX has a single +12v rail. That is why the 620 is more expensive.
I don't think that spec will affect how the psu sounds, but definitely will make a difference in performance in certain applications.
We have a lot of psu experts around here. I'm sure they'll chime in with further details.
sluggo wrote:That said, the 620HX is an excellent supply. I've been using one for as long as they've been on the market (3+ years?) and have never had a concern with it's operation. It's very quiet, although the more efficient 650HX could be quieter still. Just depends on how Corsair dialed in the fan speeds.
MaxTheLimit wrote:I seem to recall hearing the 620HX was based off of a Seasonic PSU design. Is the 650HX in the same boat?
StuG wrote:650HX is quieter than the 620HX. Promise you, I went from one to the other. Also you'll see slightly higher efficiencies with the 650HX due to some upgraded internal guts.
MrJP wrote:If you wanted to save some money, you'd actually be fine with the HX520 if that's still available (it seems to be disappearing...).
Airmantharp wrote:If it is just the connectors then this is not really an issue with adapters. However, if you really put 2 cards that draw 300W each then the 600W max output from the 3 rails of the 620HX can be worrisome (don't think cards draw the full 300W yet though).1. The 650HX can support two full 300W (8pin and 6pin each) GPU's, but the 620HX can only support one, as it has only one 6+2pin and one 6pin connector.
Airmantharp wrote:Jonny gave the 850HX pretty high marks. The TX series is also built by CWT on another platform and they seem to be pretty decent performers as well. I doubt the Seasonic made units are that much more expensive. Seasonic itself started off as an OEM and they still have a pretty significant OEM business today. Sure it may be more expensive than CWT (we never really know), but it should not be by much, or Corsair would not have entered the PSU market with them to begin with.2. The 620HX, made by Seasonic, is probably more expensive at Corsair's cost simply because it's made by Seasonic. Now, Seasonic is a brand I automatically put trust in, but CWT, supposing that they made the 650HX, has been a company that has had to earn trust, which they have. But I'm willing to bet CWT is a cheaper supplier for them than CWT.
themattman wrote:MrJP wrote:I highly recommend Corsair PSU's since I can't hear mine and I got what I paid for, quality.