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Adding TWO Rx120 Radiators, worth it?

post #1 of 10
Thread Starter 
Hey guys, i bought the Rasa 750 rx360 kit few weeks ago and so far i'm liking it.

I'm running an i7 920 @ 4ghz and two 6950(70) @ 950/1450 on the loop

As you can expect, my temps arent the greatest as i only have the RX360 as well as the STOCK fans cooling everything down.

I know Radiators arent nearly as restrictive as Cpu / Gpu blocks and especially the RX series so here is my question.

Given the pump can handle a little more from what i've seen, would it make a worth difference to add one or even two RX120 radiators to my system?

Rx120 simply because i don't want to mod my case and don't have the space for a rx240 anywhere ( i don't want outside mount).

I would also buy 5 gently typhoon 5400rpm because they are the same price anyways and would use a fan controller to quiet them down.


So would it make a large difference in adding TWO Rx120 into the loop to cool my three components down as well as replacing the stock fans with Gently typhoon running at about 2500ish rpm for most of the time?

Thanks in advance for helping a noob out!
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post #2 of 10
It would help, but I personally would see how big of a difference those fans would make (especially in push-pull) rather than buying new radiators.
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post #3 of 10
I think you would be fine adding 1 RX120 and replacing the fans with medium or high speed yates from sidewinder (or GT-15s if you want to spend the extra $). I ran an i7 920 @ 4 GHz along with 2 5870s on a RX360 + RX120 and load temps never went above 40C on my 2nd 5870.
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post #4 of 10
I would personally buy an rx240 and mount if off of the back of your case with the mounting brackets that came with your rasa kit.

Adding 2 rads instead of 1 will add more restriction but I bet the pump will still do the job but not all that well. You would be much better off going the route I suggested.
post #5 of 10
Thread Starter 
Thanks for the replies.

Yeah i should point out that my temps are alright but obviously not as low as it want them to be.

For regular use for instance (playing any demanding game like Crysis 2), Cpu can reach 62/65 and Gpus reach 55/58 celcius.

Running prime and Furmark, Cpu can go up to like 67/68 and GPUs arround 62/65.

I'm also replacing the Thermal paste so this will make a significient difference but you see why i want to get more cooling, given the overclocks that i have, i'd like to loose arround 10 degrees or so on the components.

MY delta is arround 11ish so i'd like to get that down to arround 5 or so.


One last thing! By how much should i expect the temps to go down by adding a RX240? And add to that replacing all stock fans (5) by Gentletyphoon running at 2000ish rpm in PUSH only?
Edited by insid3rkill3r - 7/18/11 at 3:54pm
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post #6 of 10
Your temps are surprisingly decent with only one rad. Adding another rx120 will help a bit you MAY decrease load temps by a 2-3 degrees, I think you will need more rad such as another 360 rad if you want to halve your water delta.
    
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post #7 of 10
Thread Starter 
Quote:
Originally Posted by ttoadd.nz View Post
Your temps are surprisingly decent with only one rad. Adding another rx120 will help a bit you MAY decrease load temps by a 2-3 degrees, I think you will need more rad such as another 360 rad if you want to halve your water delta.
Cool ty, but honestly doubt i'll go with a RX360, Either 2xRx120 or 1xRx240 is all i can mount without modding everything out. I guess i'll just have to crank these Gentle typhoon up higher!
Edited by insid3rkill3r - 7/18/11 at 4:27pm
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post #8 of 10
The problem is, if you add more rad to subtract a few degrees, you'll tax the pump more and add a few degrees there. If the amount of rad in a loop were the only factor to consider in cooling, there would be no need for a pump or fans or innovative block designs. The loop runs cooler with more flow, and your 360 should be enough to dissipate all the wattage being consumed by your setup so my opinion is upgrade the pump first and see how that works before deciding to add another rad.
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post #9 of 10
I'm quite sure the pump can handle another radiator, esp just a rx120. If you were to add 2 rx120's then consider upgrading the pump. I switched to watercooling to reduce fan noise from the graphics cards. 5400 GT's will be deafening lol. Rx radiators work best with medium to low speed fans. 1500 rpm seems to be the sweet spot. I highly recommend AP-14 or Ap15's (if you have a fan controller) they perform beautifully on Rx series rads.
    
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post #10 of 10
I think adding another radiator will help a lot. I just added a 120MM XSPC Rad to my loop and it dropped my GPU temperatures by 5*C
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