Corsair AX Series 1000 W

[crmaris]

At $240, the Corsair AX1000 is certainly not cheap, but it is the best PSU we ever tested. Being built on a Seasonic platform, only top-notch components are used, making this one of the most recommended 1000 W PSUs you can get today, if your system needs much power.

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[jabbadap]

Well good to see them using Prime platform, SS at it's best. One lovely solid performing PSU. I really dislike those daisy chain pcie cables though and those caps... uhh prime was designed without them so while they do help with ripple they are not really needed.

Wonder if Corsair will update AXi line too, or does Flectronics even have titanium platform?

 

[Space Lynx]

I don't mind the caps helping with ripple. I regret buying my Corsair 850w titanium though, its fine and all, I haven't even opened it yet, but I wish I had went with Seasonic non-prime platinum or titanium, I didn't know that about the 18 gauge cable.

 

[dirtyferret]

Wonder if Corsair will update AXi line too, or does Flectronics even have titanium platform?

AX1500i and AX1600i

The Emperor of Efficiency: Corsair's AX1600i PSU Rules Alone (Review)

www.anandtech.com

 

[Mescalamba]

Hm, why it overvolts on pretty much everything? I mean, cool that those lines are pretty much completely flat, but if they can do that, why they cant make 12V producing exactly 12.00V?

 

[jabbadap]

AX1500i and AX1600i

The Emperor of Efficiency: Corsair's AX1600i PSU Rules Alone (Review)

www.anandtech.com

Oh, heck. I have even already read that review when it went live. Thanks for the link, though!

 

[TheMadDutchDude]

Hm, why it overvolts on pretty much everything? I mean, cool that those lines are pretty much completely flat, but if they can do that, why they cant make 12V producing exactly 12.00V?

ATX code calls for a maximum of +-5% on all voltages. They are perfectly within limits. It's a nonissue.

 

[Gungar]

Well good to see them using Prime platform, SS at it's best. One lovely solid performing PSU. I really dislike those daisy chain pcie cables though and those caps... uhh prime was designed without them so while they do help with ripple they are not really needed.

Wonder if Corsair will update AXi line too, or does Flectronics even have titanium platform?

The AXi1500 was the first titanium PSU...

 

[Abaidor]

I have the AXi1500 and the greatest thing about it is that the FAN never turns on since it never exceeds 50% load on my system. No fan= no noise, no dust! It's funny how clean it is after a year's use.
If this works like this it would be a great candidate for a 500W load system or even one that only peaks a little higher so the fan is only on during heavy loads.

 

[Vlada011]

This would be interesting PSU for me.
But I have my 1200 P2 and no way to change him in near feature.
Maybe for 3-4 years.

Only bad thing on this PSU is ribbon cables only 24 pin normal sleeved.
I hate when companies do that.

And he should be little smaller, just little, but never mind.

 

[Ferrum Master]

Looks really great.

The wires are a funny decision thou.

 

[dirtyferret]

I have the AXi1500 and the greatest thing about it is that the FAN never turns on since it never exceeds 50% load on my system. No fan= no noise, no dust! It's funny how clean it is after a year's use.
If this works like this it would be a great candidate for a 500W load system or even one that only peaks a little higher so the fan is only on during heavy loads.

50%?? You are probably never break 33% since the fans come on once you pass 450w.

 

[steen]

I don't mind the caps helping with ripple.

I don't like inline cable caps either. It's usually a result of not being able to fit enough secondary side filtering inside the unit. Another reason is skimping on quality or undersizing bulk caps. Not likely in this case as the holdup time is OK & they're Hitachi. It's probably due to their cable choices & that these platforms are being pushed into high efficiency where traditional analog PFC is reaching it's limits & inline caps help with testers. Next stop digital PFC & GaN HEMTs...

The bulk caps are provided by Hitachi and of sufficient capacity for a hold-up time of over 17 ms.

820uf & 470uf primaries are the same as SSR-1000TR, yet holdup 19ms vs 28ms? Even bridge/apfc/switch components match. Also, inrush is worse with the same NTC/relay suppression. Is the fan a standard sleeve? It doesn't seem double BB.

 

[Abaidor]

50%?? You are probably never break 33% since the fans come on once you pass 450w.

Well nice graph on the AX1500i....Maybe they do come on from time to time but at such low rpm I am not even noticing it. My CPU can draw 400W on its own (i9-7940X @ 4.8GHz All Cores) and the GPU is an overclocked 1080Ti (2100/13000). However, those never peak at the same time. I will check closely what happens while gaming @4K to see how the fan on the PSU behaves.

In any case, during 90% of my usage the PSU works passively.

 

[John Naylor]

Hm, why it overvolts on pretty much everything? I mean, cool that those lines are pretty much completely flat, but if they can do that, why they cant make 12V producing exactly 12.00V?

Yes I noticed that too ... yeah the ATX spec is fine ... well "fine" for aunt Tillie's box that she keeps her recipies on or for the legal secretary typing all day .... An i3, an $80 MoBo and IGP are "fine too". But when I wanna bang in a nail I use my $18 fiberglass hammer, the single mom next store has a $9 one from Walmart and my brother w roofer has a air nailer and air compressor that runs about $450

If building a gaming box on a budget, I look for < 2% and if serious about OCing look for < 1%. If ya PSU puts out stable power, lot less for the VRMs to do as they don't have to respond and adjust for widely varying voltages.... resulting in more stable OCs. On the other hand, the voltage here is perty constant even if it is high. But again, much more concerned about variations in voltage in response to changing loads than the actual value itself. For $250 the, should come with external pots whereby one could make this adjustment

 

[Metroid]

Just incredible, I hope we keep getting more of the likes of this product. This is clearly above everything else to date regarding mainstream, on the professional levels, even most titaniums and server psu's dont stand a chance. Really well done Corsair, let's hope this is not a just a golden psu bought by techpowerup, I know techpowerup uses only retail psu's for their reviews.

 

[Vlada011]

Look very interesting but I would not change him for mine EVGA 1200 P2.
Special because any other PSU platform is 100 euro more investment on cables and I have cables for G2/P2/T2 Series.
I hope EVGA will continue to offer newer models with same cables. But after long time first PSU look interesting to me from CORSAIR.
I liked their first AX Gold series same made by Seasonic.

In this situation when 850 and 1000W is same case size always is better to use 1K model because fan is much slower and work much less than on 750-850W models.
1KW is nice size for high end gaming PC with a lot of space to avoid heat of PSU. Off course if someone strictly use i9-9900K and GTX1080 or similar graphic cards maybe is better choice Seasonic 600 Titanium Fanless.

You can check my PSU if you see inside, 3.5 years of use and it's almost perfectly clean inside. No dust. Why?
Because simply fan not work at all.

IMG 1086 — Postimages

postimg.cc

 

[Space Lynx]

@dirtyferret @crmaris

Is 16 or 18 gauge cable better for PSU's? I know Seasonic Prime Ultra Titanium uses 16, and corsair here uses 18. I know it probably doesn't matter, but I am just curious which one is actually considered better?

 

[Vlada011]

14 gauge wire higher quality is better then 20 gauge cheaper wire.
It's time for new trend, every cable as power cord, wires in rubber sleeve and that's best for cable management.

 

[crmaris]

@dirtyferret @crmaris

Is 16 or 18 gauge cable better for PSU's? I know Seasonic Prime Ultra Titanium uses 16, and corsair here uses 18. I know it probably doesn't matter, but I am just curious which one is actually considered better?

For high capacity PSUs (1kw and higher) it is better to use 16AWG not only for lower voltage drops but also for safety issues, since the thicker the gauge the lower its operating temperature.

 

[Space Lynx]

For high capacity PSUs (1kw and higher) it is better to use 16AWG not only for lower voltage drops but also for safety issues, since the thicker the gauge the lower its operating temperature.

that is a benefit of Seagate versus Corsair then I guess, since their 850w and 1000w titanium models use 16 gauge over 18 gauge. I suppose Seasonic is still king then. since both score 10's on Johnny Guru, the cable give sthe Seagate the edge

 

[crmaris]

There is no perfect power supply so in no case I would provide a perfect score to either of them. Nonetheless, I run much more tests so it is only natural to have a far more detailed picture of each PSU.