PSU for 3 x R280s

Cavallino · 31 Oct 2013 at 11:05

Hello folks,

I just want to say thanks to all (especially Doomedspeed) concerning helping me spec my new rig.

I may change the PSU and was wondering what your recommendations were for PSUs bearing in mind I currently have 2 X R280s and will be adding a third to the mix.

Many thanks.

ExRayTed · 31 Oct 2013 at 11:09

I love Antec units so this gets my vote

YOUR BASKET
1 x Antec High Current Pro 850W Modular '80 Plus Gold' Power Supply £161.99
Total : £173.39 (includes shipping : £9.50).

Cavallino · 31 Oct 2013 at 11:15

Thanks, what is the difference between your proposal and
http://www.overclockers.co.uk/showproduct.php?prodid=CA-198-AN&groupid=701&catid=123&subcat=2466

Thanks very much.

Doomedspeed · 31 Oct 2013 at 11:18

Cavallino said:
Thanks, what is the difference between your proposal and
http://www.overclockers.co.uk/showproduct.php?prodid=CA-198-AN&groupid=701&catid=123&subcat=2466
.

Technically a Silver Rating...

Think about it (it's clever, honest)..

ExRayTed · 31 Oct 2013 at 11:19

The rating..gold vs bronze and built with higher quality components. I've heard it's also quieter, although this is anecdotal.

Cavallino · 31 Oct 2013 at 11:23

Hmm and also out of stock.
Probably go with the Bronze one if you all think its decent enough? Or perhaps another brand?

ExRayTed · 31 Oct 2013 at 11:29

The bronze one is a fine unit. Stick with Antec

Cavallino · 31 Oct 2013 at 11:31

Done and done

Cavallino · 31 Oct 2013 at 15:59

Hope the PSU gets out tonight so I can put it into the rig tomorrow

Ace Modder · 1 Nov 2013 at 13:35

There are more differences

The Pro is made by Delta
The Gamer is made by Seasonic

Both are great, but Delta have the upper hand slightly in my opinion. Both are great units.

Also the Pro have been efficency.

So if your components needs 600w at that given time for example, the Pro unit may only been pulling 610w from the socket, but the Gamer may need 620w to produce the same output. (these numbers are just an example)

Cavallino · 10 Nov 2013 at 14:06

Thanks Ace Modder.

To be honest, I am going to RMA the 850W that I have but buy another one at the same time.

The main point for me is the noise. So should I take a chance on another 850W from Antec, or look at some other brand?

(question open to all please!)

Schizo · 10 Nov 2013 at 14:13

Try the corsair ax860i,i have got the ax 850 and cant fault the noise or production of the corsair psu's.

Doomedspeed · 10 Nov 2013 at 14:18

the AX860i is not a seasonic made unit, the AX860(non-I) is though.

Cavallino · 10 Nov 2013 at 14:24

seasonic being the better brand than corsair for PSUs?

stulid · 10 Nov 2013 at 14:26

850Watts is not enough for three of these cards.

Needs more like 1KW or greater.

Cavallino · 10 Nov 2013 at 14:28

Hmm AX860 suffers from coil whine apparently :|

Cavallino · 10 Nov 2013 at 14:28

stulid said:
850Watts is not enough for three of these cards.

Needs more like 1KW or greater.

Sorry needed to update you that I will NOT be going for 3 of these, only 2.

stulid · 10 Nov 2013 at 14:31

You see that PSU in post#2? that's what I use with a pair of R9 280X's on a socket2011 [email protected], I've seen 710watts being sucked from the wall (so that's the whole setup) during Crysis3.

RJC · 10 Nov 2013 at 14:32

stulid said:
You see that PSU in post#2? that's what I use with a pair of R9 280X's on a socket2011 [email protected], I've seen 710watts being sucked from the wall (so that's the whole setup) during Crysis3.

Looking at the review below they got 562w, 700w I'm surprised.

http://www.tweaktown.com/reviews/58...c-in-crossfire-video-card-review/index23.html

stulid · 10 Nov 2013 at 14:39

RJC said:
Looking at the review below they got 562w, 700w I'm surprised.

http://www.tweaktown.com/reviews/58...c-in-crossfire-video-card-review/index23.html

Well its what I've seen and Crysis3 draws more than Firestrike does as a whole.
I see they use 3Dmark06 which maybe not stressing as much as a more modern game does?

There are a few important notes to remember though; while our maximum power is taken in 3DMark06 at the same exact point, we have seen in particular tests the power being drawn as much as 10% more.
Read more at http://www.tweaktown.com/reviews/58...-card-review/index23.html#8WMAlMqVolkJbvzM.99

10% more will take you up to 618watts.