AX860i or AX1200i for Dual R9 290X?

Jeremy1998

New member
I know that the R9 290X isn't even out yet, but let's just assume it uses about the same power as a titan.

So my plan is for an Intel 3930k, and two R9 290X cards. Of course, everything will be overclocked. Also, I'm gonna have watercooling, so include a D5 pump, and upwards of 20 fans. I'm also gonna have probably 2 ssd's and at least 6 hdd's.

I own a Corsair AX 860i, and also the AX1200i. My plan was for the 860i in this system (workstation), and to use the 1200i in a larger gaming system. But if the 860i just can't handle it, I guess I'll use the 1200i and figure something else out for the gaming rig.

Keep in mind I also don't want to push things right at 99% of their limits, so can all of that run COMFORTABLY on 860 watts?
 
I've got a great idea - wait till someone publishes the actual power draw of these cards.
 
I've got a great idea - wait till someone publishes the actual power draw of these cards.
I've got a great idea - read the thread.

"I know that the R9 290X isn't even out yet, but let's just assume it uses about the same power as a titan."
 
I've got a great idea too! Wait for some information and not ask us all to answer something that no one here knows.
Well "I know that the R9 290X isn't even out yet, but let's just assume it uses about the same power as a titan." implies to replace every time I said "R9 290X" with "Titan".

So assume I said:
"So my plan is for an Intel 3930k, and two TITAN cards. Of course, everything will be overclocked. Also, I'm gonna have watercooling, so include a D5 pump, and upwards of 20 fans. I'm also gonna have probably 2 ssd's and at least 6 hdd's."
 
While I agree with neverbackdown, to answer the question I would expect the 860i to be more than good enough, you can get away with a similar setup on a 760i if I remember right.

IF the cards draw stupid amounts though, this thread kinda ends up pointless but by your parameters, I still don't think you need anything over 1kW
 
Lose the sarcasm guys, it'll only end in an argument. Even if official specs haven't been released, you can say that politely, without angering others.
 
Right, so are you planning on running two R9 290X in a workstation? If so what are you running in the gaming system that requires 1200W?
 
Right, so are you planning on running two R9 290X in a workstation? If so what are you running in the gaming system that requires 1200W?
Yeah, because the new Adobe stuff all uses Radeon cards, and if these new R9 290X cards are as amazing as they say, it should be amazing.

As for the gaming rig, I'll probably have another 3930k and then either something like 3 Titans (playing at super high resolutions), or 3 of those R9 290X cards. But I'll figure all that out when the time comes.
 
3 cards in a gaming rig? What are you doing running 3 1440p screens or something at once? Regardless knowing that, I'd put the 1200W psu with the 3 card setup
 
3 cards in a gaming rig? What are you doing running 3 1440p screens or something at once? Regardless knowing that, I'd put the 1200W psu with the 3 card setup
Actually, yes, that's my plan for monitors. Of course I plan to have a 1200 watt in that system, and if somehow that can't handle, I'd use a 1200 for the cards, and a small psu for the CPU and fans and pumps and drives and all that.

But I'm just wondering if 860 is enough for the system I mentioned originally (3930k and dual R9 290X (assume 300W TDP)) will be enough to power all the stuff overclocked, plus the drives, plus the watercooling gear too. I guess I'll have to see what the specs of the card end up being, but an 860 might or might not handle it. I'll just have to see later.
 
Well, with 3 x 1440p monitors, you get surround for $1000 USD, where as with a 4k monitor you have a single monitor for at least $4000 USD.

Yeah I guess so, 3x 1440p's will be nice some of the time but a single 4k would be don all of the time. Surround for sure has its merits but it's not something I will consider again for a long time, at least until my circumstances change. An Ultrasharp 32 however I like the sound of... although the jury's out on the price.

On the PSU front you got me thinking, I just ran the OCCT PSU burn test with two 780's and a 4820k on an AX860. The fan didn't even spin up! I think your good whatever you do on that one providing the AMD cards don't turn out to be monumentally power hungry, seems unlikely.

JR
 
I think I may end up going with 2 780's instead, since more professional softwares support CUDA than OpenCL. So based on the previous post,
  • 2 GTX 780's (overclocked)
  • 3930K (overclocked)
  • 6 HDD's
  • 2 SSD's
  • D5 pump
  • ~20 fans
should be able to run off of an AX860i comfortably?
 
Power wise you'll be fine on that.

20 fans though? what case do you have?
I'm modding the hell out of my 800D. I'm putting a 480 rad in the bottom and a 420 in the top, and both of those rads will be in push-pull so I can keep it freaking silent, or ramp it up if I'm doing a LONG render.
 
I'm modding the hell out of my 800D. I'm putting a 480 rad in the bottom and a 420 in the top, and both of those rads will be in push-pull so I can keep it freaking silent, or ramp it up if I'm doing a LONG render.

With that rad space, you'll never need to ramp the fans up with watercooling.

Run them straight of molex at 5v/7v and your temps will always be fine.

Also, I'd stick with 2x 420 rads rather than the 480, as 120mm fans are better than the 140s as far as rads go.
 
With that rad space, you'll never need to ramp the fans up with watercooling.

Run them straight of molex at 5v/7v and your temps will always be fine.

Also, I'd stick with 2x 420 rads rather than the 480, as 120mm fans are better than the 140s as far as rads go.
Wait, stick with 2 x 420? Those would use 140mm fans, but you said 120mm fans are better. So type-o somewhere?
 
Lol, yeah, it's early over here!

2x 480s, or maybe a 360 if there's an issue fitting a 480 in the bottom.

Radiator fans need high static pressure to work, which is generated by higher pitched fan blades and faster spinning fans, and 140mms just don't offer that as they'd end up being far too loud if they had to spin at those kind of speeds.
 
Lol, yeah, it's early over here!

2x 480s, or maybe a 360 if there's an issue fitting a 480 in the bottom.

Radiator fans need high static pressure to work, which is generated by higher pitched fan blades and faster spinning fans, and 140mms just don't offer that as they'd end up being far too loud if they had to spin at those kind of speeds.
Oh, a 480 fits in the bottom fine. I made it >:)
But on a serious note, yeah, this 800D has been chopped up quite a bit. But I may only put a 360 in the roof, since I plan to have the top panel laser cut so I can have my front I/O there. I dunno, I'll have to see how it ends up.
 
Oh, a 480 fits in the bottom fine. I made it >:)
But on a serious note, yeah, this 800D has been chopped up quite a bit. But I may only put a 360 in the roof, since I plan to have the top panel laser cut so I can have my front I/O there. I dunno, I'll have to see how it ends up.


Planning on painting it again then are you?


Try and remember there are people here that actually understand how things work and the effects when you do.

Your blatant inexperience is quite comical, dont try to to be something you are not dude because there are plenty of people here that can see through it.

Like the 480 in the bottom, you say you made it fit, you either bodged it or relocated the PSU. you dont do that then "just use a 360 in the roof"

Start posting some pictures and a proper build log because Im starting to hear dreams and wishes more than actions. That really doesnt go down well here, facts are all we wanna hear when you say "I have done"
 
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