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Corsair TX650 v2 or Antec HCG 620

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June 23, 2012 7:40:03 AM

Hi guys,

I nearly completed my next build and initially I chose a Corsair TX650 v2 PSU. However, after some reading I came across some user experiences that this PSU is rather loud so I looked further and decided on the Antec HCG 620 which I read is supposed to be very silent.
Can anyone confirm what I read about these Corsair and Antec PSU's? I am also open to other suggestions, within that price range, of course.

Thank you very much!
a b ) Power supply
June 23, 2012 8:09:26 AM

Both are very high quality units.
The HCG 620 is fairly silent, modular & performs well, whereas the Tx 650v2 is a little loud & not modular.
All in all, the HCG 620 is a great choice, its an excellent PSU & will serve you well.

http://www.newegg.com/Product/Product.aspx?Item=N82E168...
June 23, 2012 8:40:59 AM

Ok thank you I think I'm gonna go with the Antec :)  It's gonna be the non modular version though, since it's on sale at a local retailer. I suppose it's the same OEM as in the PSU you linked. And I'll need most of the cables anyway.
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a c 87 ) Power supply
June 23, 2012 12:44:58 PM

The 520W version had it's fan speed measured varying between 600 and 1800RPM.
http://www.xbitlabs.com/articles/cases/display/psu-400w...

Corsair stated that the noise varies between 25-42dBA. 25dBA would be an okay figure on load, but not on idle. So yes it seems like the Antec would be the better choice of the two if you want a quiet unit, if only because it is quieter in idle.

However this is even better:
Rosewill Capstone 650W 80Plus Gold $100 (15% off promo code)
http://pcpartpicker.com/part/rosewill-power-supply-caps...
It uses a Globe Fan RL4Z B1402512M, 0.30A, which has a maximum speed of 1200RPM, but idles/spends most of it's time around 700RPM.
Also has the advantages of higher efficiency and a pretty modern internal design, more so than the Seasonic S12II/M12II platform (HCG), possibly the SS-xxxAT (TX650 V2) platform as well.
a c 164 ) Power supply
June 23, 2012 12:59:05 PM

Thomas_89 said:
Ok thank you I think I'm gonna go with the Antec :)  It's gonna be the non modular version though, since it's on sale at a local retailer. I suppose it's the same OEM as in the PSU you linked. And I'll need most of the cables anyway.


actually the HCG and TX v2 are built off the same seasonic platform and I'v had two PSUs that use the same fan as the corsair and both where/are silent. With either PSU you won't be making a bad decision.
June 23, 2012 2:48:23 PM

ct1615 said:
actually the HCG and TX v2 are built off the same seasonic platform and I'v had two PSUs that use the same fan as the corsair and both where/are silent. With either PSU you won't be making a bad decision.

Good to hear, as far as I know SeaSonic (based) PSU's are among the most reliable units so that backs up my confidence to make a good purchase.
I will share my findings on its noise profile later.
a c 87 ) Power supply
June 23, 2012 2:57:47 PM

ct1615 said:
actually the HCG and TX v2 are built off the same seasonic platform

No they aren't. The HCG uses the Seasonic S12II Bronze platform, which is group regulated while the Corsair TXV2 series uses the SS-xxxAT platform, which has indy regulation/DC-DC converters for the minor rails.
a c 164 ) Power supply
June 23, 2012 3:21:30 PM

Silvune said:
No they aren't. The HCG uses the Seasonic S12II Bronze platform, which is group regulated while the Corsair TXV2 series uses the SS-xxxAT platform, which has indy regulation/DC-DC converters for the minor rails.


yes, you are correct. still both more then capable
a c 110 ) Power supply
June 23, 2012 11:10:58 PM

I personally have the HCG 620W, not the HCG 620M. It's a great PSU, silent too! Just make sure you have a good case for cable management.
!