Corsair AX850 noise?

[Rajveer]

Does anyone know how quiet the Corsair AX850 PSUs are? I'm looking to replace my Seasonic S12 Energy Plus 650W for a new build, and can't wait for the X-850.

I'd like the system to be pretty quiet. I'll be reusing my P182 but changing all the case fans for Scythe Slipstream 1200rpm and a Scythe S-Flex for top exhaust (all speed controlled), with Akasa Apaches in push-pull for the heatsink.

[netmask254]

Does anyone know how quiet the Corsair AX850 PSUs are? I'm looking to replace my Seasonic S12 Energy Plus 650W for a new build, and can't wait for the X-850.

I'd like the system to be pretty quiet. I'll be reusing my P182 but changing all the case fans for Scythe Slipstream 1200rpm and a Scythe S-Flex for top exhaust (all speed controlled), with Akasa Apaches in push-pull for the heatsink.

I suggest you hold until at least one review (mention noise) is published.

Though it's 80PLUS gold and very high quality PSU, I heard some rumors on another forum that the fan speed is very high for AX1200 (start from 1000rpm) and it needs to be confirmed by review.

[Rajveer]

One thing to note is the AX1200 is based on a different design than that of the AX850 and AX750, and as such has a 140mm Yate Loon fan whereas the ones in the AX850 and AX750 are from Sanyo Denki. This graph looks interesting (and isn't on Corsair's website for the AX1200 model):



I wonder if it's actually 16dB? I've heard their HX model is very quiet so I'd expect it to be similar, if not quieter.

[quest_for_silence]

I've heard their HX model is very quiet so I'd expect it to be similar, if not quieter.

I don't know about the little HX650, but the HX-750/850 are far way noisier than something like the Antec SG-850 or the Seasonic M12D-850, or even the XFX XPS-850 Black Edition.

So I hope that AX series is quieter than the HX one, or it won't worth for silencers.

Regards,
Luca

[cryptic66]

I just got my Corsair AX850 Power Supply today. Its dead quiet. Fan will only turn on if its needed.

Better an any Antec Power Supply I have ever owned.

[Joe Public]

The AX750/850 are based on the Seasonic X design, so obviously we'll see performance equal to those units. AX uses the same Sanyo Denki fan as the Seasonics.

[faugusztin]

Just to add to the Joe Public's statement - here is RedBeard's post where he says that :
http://www.jonnyguru.com/forums/showpos ... stcount=13

The AX750 and AX850 are newer Seasonic-based designs. The AX1200 is a custom design from neither CWT or Seasonic. Reviews should be forthcoming, but the AX1200 is a rock solid product in our internal tests. We have been designing this product since the HX1000 launched - and now it's ready to go.

PS: AX1200 = Flextronics.

[Joe Public]

Yeah, the AX1200 is a different beast alltogether. It's actually kind of an interesting design, even though it can't be classified as the silent crowds PSU. (Well, PSUs that size seldom are ;P )

[faugusztin]

I was thinking about AX750 - but considering it's more expensive than the Seasonic X 750 (151,92€ vs 160,46 €) and Seasonic X 650 is even cheaper (131,05 €), it became pointless to me. But it's good to know they got everything from Seasonic X, including the fanless mode.

[Joe Public]

Yeah, it's possible the Corsairs will come down in price when they've been on the market for a while. But if you need a PSU now, get the X-650, that's the best deal.

[Compddd]

I nabbed a Seasonic X-750 off Amazon for $139.99 with free prime shipping