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Want to downgrade from ATX to mATX. Advice needed please.

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March 2, 2014 10:07:13 AM

I currently have a 770 4gb sli setup in a Define R4 case. I'm powered by a Seasonic 750w gold and have a 4770k under an h100i.

Pretty straight forward. Oh, and 16gb of Vengeance ram.

I am keen to stick all my gear in a 350d but am a bit worried about those twin frozr msi 770's getting a bit toasty.

I would like some opinions on the matter, preferably from experienced users.

Also before I forget, I would put a Maximus Gene z87 in the new rig.

Just for some more info, my current mobo is a msi gd65 gaming and has a single slot spacing between the cards and when not gaming or stressing the gpu's they run between 30 and 35 degrees Celsius. Under Valley benchmarking the top card sometimes hits 80 but I have a nice aggressive fan profile setup in afterburner as these cards in the fractal case run super quiet, even at 80% fan speed. There is never any throttling on the top card or the bottom one for that matter and they are both over locked by about 100mhz.

Would I be making a mistake going to the 350d?

More about : downgrade atx matx advice needed

March 2, 2014 10:10:31 AM

Unless you need a smaller case id stay where you are
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March 2, 2014 10:11:45 AM

I ran an SLI setup in an mATX case for a while. Two gtx560's (HOT cards), and I didn't have any problems.

You should be fine. The issue will be the cards being stacked right on top of each other. Blower style cards are REALLY ideal for this situation, but yours should be alright.

you will probably have to go back to stock GPU clocks, but that will not affect anything performance wise really.
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March 2, 2014 10:42:41 AM

Spectre694 said:
Unless you need a smaller case id stay where you are


I don't really need the space. I'm just a neat freak and love the 350d's aesthetic. I know I should probably stay where I am and save my money. But I will never be happy until I make sure that the 350d is a bad bad move :) 
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March 2, 2014 10:46:26 AM

I like the 350d alot. It is a very good case.

Here is a great SLI build in one:


You will be fine.
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March 2, 2014 10:49:00 AM

tiny voices said:
I ran an SLI setup in an mATX case for a while. Two gtx560's (HOT cards), and I didn't have any problems.

You should be fine. The issue will be the cards being stacked right on top of each other. Blower style cards are REALLY ideal for this situation, but yours should be alright.

you will probably have to go back to stock GPU clocks, but that will not affect anything performance wise really.


Thanks for the reply. We're your 560's blower style cards?
I also never really planned to sli initially. A friend who had the exact same card as mine bought at the same time too, wanted to upgrade to a better card so he sold me his 770 for a fair price. Very fair :) 

So here I am with this beast of a machine and I want to sere if I can squeeze it into a mATX system.
There are a few things about the r4 that are a bit annoying, like the ghetto h100i in the roof and that blue led!
I also considered moving to the air 540. But that's another story all together.

My reason for this coming up now is that I am building a gaming rig for a mate who is keen to get out of his haf xb and I can therefore swop a few parts around and pretty much go into the 350d at no cost to me.
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March 2, 2014 10:51:13 AM

I had one blower card and standard single center fan card.

The air 540 is ENORMOUS. Bigger than two 350d's next to each other. I personally do not like the case.

I really like the 350d. I say go for it. Don't forget that switching motherboard will require you to reinstall windows.
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March 2, 2014 10:52:10 AM

tiny voices said:
I like the 350d alot. It is a very good case.

Here is a great SLI build in one:


You will be fine.


Those cards are blower cards and there is a 1 slot gap. My cards are open (msi gtx770 gaming, twin frozr) and the Maximus gene 6 motherboard will have my cards touching.

Nice rig thought, but different to what i am envisaging in all the places that matter :) 
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March 2, 2014 10:53:26 AM

Your cards will be fine with no overclock. I promise. The case has good airflow and you shouldn't have any problems.
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March 2, 2014 10:56:24 AM

Here you go. same motherboard and non blower cards stacked right on top of each other.

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March 2, 2014 11:04:37 AM

tiny voices said:
Here you go. same motherboard and non blower cards stacked right on top of each other.



Ok ok. I'm starting to see the light. I have seen it done as well, but upon reading a bit further along those threads I usually find that issues come up. Heat issues ;) 

I am hoping that my saving grace will be my backplates and a good set of intake fans.

Would you do sp120's in the front for more direct air on the gpu's or af140's for volume and hopefully a positive air pressure overall?
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March 2, 2014 11:10:52 AM

Your backplates will help a ton. You should have no problems. I personally like the SP120s. They should work fine. Its not about blowing a ton of air, or even positive pressure, it is just about getting air moving through the case. A good exhaust is just as or more important than the intakes.
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March 2, 2014 11:14:59 AM

tiny voices said:
Your backplates will help a ton. You should have no problems. I personally like the SP120s. They should work fine. Its not about blowing a ton of air, or even positive pressure, it is just about getting air moving through the case. A good exhaust is just as or more important than the intakes.


Ok. Thanks for all the input. Definitely got me one step closer to taking the plunge. The h100i and the rear will be exhausting so I reckon af140's in the front should get more air into the case for those others to exhaust.
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March 2, 2014 11:18:33 AM

That sounds good to me!
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