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Overkill or better safe than sorry?

post #1 of 6
Thread Starter 
So I am going to be ordering the final parts for my water cooling setup soon and I am curious if my setup will be enough or not.

Have an FX 8320 at 4.2 GHz, but I plan to push it further. I will be Cooling that with an XSPC Raystorm.

I have 2 Radeon 7950s I will be cooling with swiftech komodo 7900 series GPU blocks.

For my radiator I have a XSPC RX360. What I am really wondering Is will this be enough? Would say an additional RS120 be a good idea to have? Or the RX120. I want the rig to run as quiet as possible, so that makes me think the additional rad would help with that.

Any help is appreciated.
post #2 of 6
Yes get extra radiator that's a lot of wattage to be cooling with one 360.
I have ~650w being cooled with 5x120mm and it's just barely enough. You will have around 650w as well.
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post #3 of 6
I think the single 360 will be manageable, but I personally would add a 120 or 240 to it as well. Might as well do it now whole you're building it.
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post #4 of 6
Thread Starter 
As I dont want to have to mod my case to heavily a 240 is out. An addition 140 on the bottom would be an option, but its that or a 120 on the rear.

Thanks for the help guys, I was leaning towards getting the additional but wanted some extra feedback.

Any feedback on the parts being used? Ive heard lots of good things about the raystorm and the RX360, but I haven't seen much on the komodo blocks.

Will be using monsoon fittings and primochill advanced LRT tubing. I am at a total loss on coolant though. But I'm almost 100% sure I want it to be UV yellow. But god does mayhems aurora look soooooo cool.
post #5 of 6
Well... It all depends on what kind of noise generation you can tolerate, does it need to be quiet?

A single 3.120mm radiator will usually have around 230watts of heat dissipation with normal RPM (1200RPM - 1800 RPM) fans, and a 10 degree delta temperature. (A delta temp is the difference in temp between the liquid inside the rad, and the ambient air that's cooling it)

Now that being said I've seen someone cool a 700watt heatload with a 3.120mm radiator, he just had ridiculously powerful fans on it. (3200RPM if I remember correctly)

As far as I can see online the FX-8320 is just a FX-8350 with a factory downclock, as it appears they both have 1.2 billion transistors with 8 of AMDs pseudo-cores, and an identical architecture, so for all intensive purposes I will assume it will overclock similarly to an FX-8350.

AMD recently released it's FX-9590 which is literally just an FX-8350 with a factory stable overclock. It is factory clocked in at 5GHz, and has a TPD of about 235 watts, so that's what we'll assume your CPU will have at that clock rate.

Now the Radeon HD 7950s have a heatload of 195watts when they have absolutely no overclock. I'm going to round that up to 200watts.

You now have around a 650 watt heatload to cool with your loop.

Now to the fun part: As the delta temperature increases, so does the amount of heat a radiator will dissipate. As the airflow through the radiator increases, so does the amount of heat it dissipates. So if you want use some quietish fans, you could drop your chance to overclock that high, and run your system as it sits. You won't by any means have a performance setup, but it will do the job. You could also add some really powerful fans, like the delta 252 fans, or the Panaflow fans, but then it's loud.

You have already stated modding your case for more radspace isn't an option, so the only practical solution you're left with is to have an externally mounted radiator. This would allow you to use quiet fans, and have performance cooling capabilities.

The Phobya G-Changer Extreme Nova, The Phobya SuperNova, or the WaterCool MO-RA3 are your best bet here. They are big, have a lot of surface area, and the company sells mounting hardware to secure it to the backside of your computer case.


What you have now will not be sufficient for Crossfire 7950s and an overclocked 8320 though, that's for sure.
Edited by ZytheEKS - 8/11/13 at 1:38am
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post #6 of 6
Thread Starter 
Well I have decided I will be completely cutting out the lower HDD cage. At least the the part that is closest to the visible side. Will be putting a 240mm radiator there. To save space I will be using a RS240 on to bottom, and an RS120 on the rear along with the RX360 on the top. I will either have to cut more holes in my side panel, which I am not afraid of doing, I have done it before with a mod to install a fan grill. But that is about as far as I am willing to go as far as modding the case goes.

I am still somewhat unsure on coolant selection though. What are some good coolants/additives to add to De-ionized/Distilled water that either have a UV range of coolants or UV range of additives.
Edited by Stuntfly02 - 8/11/13 at 11:27pm
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