Ax860 enough for 290 crossfire?

[BS Dave]

As title is my corsair ax 860 going to be enough to run 290 crossfire?
What about overclocking
I've got a 2700k at 4.6 as well.

If I was to swap out the 2700k for a 4770k would that make a difference?

(I know I'll need a new MOBO)

Thanks

Dave

 

[NoNameNoNumber]

Yes 860 will be fine

 

[LtMatt]

Yeah will be fine. 1000W would be better though should you wish to do some serious overclocking.

 

[whyscotty]

1000W would be better though should you wish to do some overclocking.

^^^
This

 

[Spook187]

I got told no on here running 2xR290's with AX860i psu it must be cutting it fine though.

 

[Rofflay]

Eh i have that PSU i thought it was a beast like all corsair 850 units? 2x R90X must really suck some serious juice i thought that psu could handle two of any gpu's out there with 290x or Titan Blacks included. When i bought it i thought 4770k 4600 and 290x in crossfire would be something it would handle no problems and have a little tiny bit to wiggle.



Google from Hardforum:

I'm running 2x 290x's in my system and I have identical specs. I have a Asus Maximus IV Extreme P27. I'm running a lot of fans in my system for the radiators and it's straining my AX1200. The 290x's spike to over 300w sometimes.

I would definitely look into getting another PSU.

Goodjob i dont need or want dual card configs you probably lose the platinum rating when pounding it to maximum capacity too. 90% i think it is? Withv the prices of leccy if you could trade it for something and only be out say £40-£50 you would make it back in the lifetime of the unit anyways i reckon.

 

[3t3P]

I got just shy of 900W benching when I had my cards OC'd with extra volts and CPU at 1.5v 5ghz.

In 'normal use' doesn't go that high

 

[Matson]

I can tell you from experience that it wont be enough.
I had the ax860 and when I got 2 x 290 cards in very intensive benchmarks or games it would just shut off.... was fine with one card but with 2 it wasn't enough so I guess it was on the limit. Changed it for a 1000w PSU and it works fine now.

 

[thewanted]

I can tell you from experience that it wont be enough.
I had the ax860 and when I got 2 x 290 cards in very intensive benchmarks or games it would just shut off.... was fine with one card but with 2 it wasn't enough so I guess it was on the limit. Changed it for a 1000w PSU and it works fine now.

I've been playing BF4 for months with my 4770K @ 4.4GHz + 2 x 290s on an AX860 with 2 HDDs and an SSD.

Were your cards overclocked? Mine aren't.

 

[Confused Stu]

I was able to run 2 x 290's and my 2600k at 4.6 on an XFX 750W PSU but it was running pretty close to it's limit in heavy graphics situations (800W from the wall during Sleeping Dogs benchmark). It was OK to run the cards at stock settings, but didn't give me any headroom to overclock them. I didn't like the idea of running my PSU so close to it's limit long term, and the Strider 1200W came up at a good price so I upgraded even though my cards are run at stock speeds.

Your 860 should be fine to run the cards at stock, unless you have a particularly juice guzzling system, but you'll definitely hit problems if you overclock and/or overvolt them.

 

[Spook187]

I was able to run 2 x 290's and my 2600k at 4.6 on an XFX 750W PSU but it was running pretty close to it's limit in heavy graphics situations (800W from the wall during Sleeping Dogs benchmark). It was OK to run the cards at stock settings, but didn't give me any headroom to overclock them. I didn't like the idea of running my PSU so close to it's limit long term, and the Strider 1200W came up at a good price so I upgraded even though my cards are run at stock speeds.

Your 860 should be fine to run the cards at stock, unless you have a particularly juice guzzling system, but you'll definitely hit problems if you overclock and/or overvolt them.

I would rather know before i splash out on a psu if i have enough juice, think i am stuffed to be honest if i add another 290.

i5 [email protected]
Gigabyte Radeon R9 290 OC WindForce
2x ssd
2xhdd
Asus Xonar Essence
16GB ram
16 corsair fans

 

[Matson]

I would definatly go higher just to make sure... plus then at least you will be able to overclock aswell.