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Looking for a Good Multi-PSU Case

Posted: Wed Nov 21, 2012 6:57 pm
by d53642
I am new to TTR and I am liking what I see on this site, it has everything you could ask for on help and info for just about anything.

Anyways I want to upgrade my tower to a case that will hold 1-3 power supplies. I would like to run my 6870's on their own supply unit and the rest of the system on the other one.

I am looking for the experience of the members here on what they have tried or used to see which way I should go.

Right now I am running the Antec DF 30 and love this little case but its not made for what I what to do with it.

I have other options I am planning as for upgrading ram/mb etc over the next year but right now my focus is on the case.

Re: Looking for a Good Multi-PSU Case

Posted: Wed Nov 21, 2012 9:21 pm
by Airmantharp
d53642 wrote:
I am new to TTR and I am liking what I see on this site, it has everything you could ask for on help and info for just about anything.

Anyways I want to upgrade my tower to a case that will hold 1-3 power supplies. I would like to run my 6870's on their own supply unit and the rest of the system on the other one.

I am looking for the experience of the members here on what they have tried or used to see which way I should go.

Right now I am running the Antec DF 30 and love this little case but its not made for what I what to do with it.

I have other options I am planning as for upgrading ram/mb etc over the next year but right now my focus is on the case.


You could use a 200W unit to run the main system, and a 300W unit to run the GPUs- but why? You increase cost, complexity, and points of failure to gain...?

Re: Looking for a Good Multi-PSU Case

Posted: Wed Nov 21, 2012 9:39 pm
by bthylafh
I agree. You're better off to get a single quality PSU to drive everything.

Re: Looking for a Good Multi-PSU Case

Posted: Wed Nov 21, 2012 9:52 pm
by Chrispy_
Also, multiple power supplies is a very bad idea unless your motherboard, BIOS and components are designed to deal with them.

To massively oversimplify it, the motherboard talks to the power supply and is responsible for power management of many of the things plugged into it. If you start using multiple power supplies on a board designed to talk to only one, there will likely be problems.

Possibly even problems of the "OMG MY WHOLE HOUSE IS ON FIRE" variety.

Re: Looking for a Good Multi-PSU Case

Posted: Thu Nov 22, 2012 8:20 pm
by d53642
Thanks for the suggestions guys.

Might look into a better power supply that can handle 2-3 high end video cards at once.

Re: Looking for a Good Multi-PSU Case

Posted: Thu Nov 22, 2012 8:47 pm
by Ryu Connor
http://youtu.be/QmSBaizEqkk

http://www.hardocp.com/article/2011/08/ ... usiast_pc/

Doesn't help your case situation much. The linked video uses dual supplies is an open air case.

The guides and video demonstrate what you're after though.

Re: Looking for a Good Multi-PSU Case

Posted: Thu Nov 22, 2012 9:28 pm
by mdk77777
How many cards do you have?

A good 750 watt will run two cards and your system with ease.

$100 PLAT

http://www.newegg.com/Product/Product.a ... 6817182084

Even if you have 4 cards, there are plenty of reasonably priced 1000 watt units that will get the job done with ease.
Just no economy for twp PSU any more. (1000 watts used to be 3x a 550 watt...not true anymore) :wink:

Re: Looking for a Good Multi-PSU Case

Posted: Sat Jan 05, 2013 6:22 pm
by d53642
Just wanted to thank everyone for the advice.

I ended up buying the Corsair 1200W AX Gold.

http://www.corsair.com/en/professional-series-gold-ax1200-80-plus-gold-certified-fully-modular-power-supply.html

Re: Looking for a Good Multi-PSU Case

Posted: Mon Jan 07, 2013 4:22 pm
by DPete27
Just saw this post, but:
Have you ever used a power supply calculator to determine what size PSU you need or a Kill-a-Watt Meter to measure the actual power draw of your system? A good 650W - 750W PSU is plenty for almost any system with dual 6870's. You're probably looking at 420 - 450W power draw at the wall there.

Re: Looking for a Good Multi-PSU Case

Posted: Tue Jan 15, 2013 1:50 am
by d53642
Very nice site, after going through my system setup. Says I require 856 watts, so I am happy with the 1200 watt supply as I am not totally done upgrading yet.