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RASA Build - missing anything?

post #1 of 12
Thread Starter 
Here's my cart for a RASA build:



I already have:

Koolance NX480
DD Fill Port for a drain.


I plan on externally mounting the rad (silly me, getting an antec 900 instead of a 1200) and using 2 90* rotaries on the rad, and one on the gpu to the rad out the back. Then running tubing from the gpu block to the fill port at the bottom of the case.

I need links for good TIM in a med size, since I have to mount 2 blocks and more in the future. nothing crazy expensive like Indigo Extreme or Shin-Etsu. I was thinking of just getting some AS5 and calling it good.
Edited by Nytehawk - 5/1/11 at 1:18pm
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post #2 of 12
I would get the RX kit over the RS, the RX rads are much better performing

Also, you shouldn't need the hose clamps, the kit comes with clamps already (unless you want a specific look)

EDIT: Arctic Cooling MX-2 TIM 30g;

http://www.newegg.com/Product/Produc...k=Arctic%20MX2

MX-2 is a great TIM and non-conductive so perfectly fine to use on GPU's
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post #3 of 12
You need some distilled water(and kill coil)/ Coolant do you have that already though?

Also the hose clamps should be in the kit and if you don't want to use those ones you'll only need 6 of them for the kit you have.
Edited by jammo2k5 - 5/1/11 at 7:19am
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post #4 of 12
Yea just use distilled water and a strip of 99.99% silver to help kill bacteria
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post #5 of 12
Thread Starter 
the kill coil comes with the RASA kit from FrozenCPU (kind of a nice thing for them to do) and I buy 10 gallons of distillied water every month to make coffee, so I'm good there.

I work on my own vehicles, so I just prefer spring hose clams to the black plastic kind that the kit comes with, and I like Koolance's look.

I have 10 hose clamps for:
Res->CPU: 2
CPU->GPU: 2
GPU->RAD: 2
RAD->RES: 2

GPU->DRAIN: 2

I know the Koolance rotaries come with clamps, but they are for 1/2" tubing with a 3/4" OD. It made me a little sad to not be able to use them.


Are there still issues with Arctic MX-3? (I read MX-4 performed even worse)
Thanks for the replies!
Edited by Nytehawk - 5/1/11 at 7:42am
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post #6 of 12
I would strongly recommend not running that 4 fan wiring harness off of one motherboard header... It'll pull a lot of voltage from your motherboard and may burn out the fan header. If you have a molex adapter for the 3 pin, then that's fine, but just make sure not to run it all straight off of your motherboard (or at least off of one header).

I would recommend 2 45 degree angles instead of 1 90 degree since 90 degree fittings reduce flow more, or just have the tubing make the bend if you have the room for it.

The shin-etsu can be had for pretty inexpensive. There was a bulk-buy on HardOCP's forum where I picked up two tubes for about $5 each. AS5 is usually a good bet though, however with the video card block, you'll want something that doesn't conduct electricity, so you may want to look into another option than AS5 for that. AS ceramique is not the greatest paste in the world, but it works and is non-conductive, and I've used it before with no problem.

Also, I just have to stress that if you have the room for the deeper radiator, you're much better off getting the RX kit instead of RS. It'll add more effectiveness to your loop long term if you ever want to add more parts to the loop or overclock more it will allow you more headroom.
post #7 of 12
Thread Starter 
Dr. Gumby, by molex adapter, are you talking about using a fan controller? Otherwise, if it's just connected to my PSU, won't the fans run at their max at all times?

I'm debating with myself on the fittings. I've seen your other posts, so I respect your opinion regarding WCing. 45* rotaries would pretty much do nothing for my tube routing versus the 90*s, as the Rad will be externally mounted (the 90* fittings would allow a more direct loop to the inside from the radiator). 45* fittings would work very well on the CPU block, though. I was just trying for a clean look without a ton of extra tubing. If it will truly restrict flow that much, I can work around it.

The RS360 is purley for cost reasons, as I would plan to buy either another 240 or replace the RS360 with the RX variant later on (when I go SLi).
Edited by Nytehawk - 5/1/11 at 8:21am
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post #8 of 12
By molex adapter I mean 4 pin molex (PSU power) to 3-pin adapter. Don't plug the 4-to-1 adapter into your motherboard, as you risk running dangerous amounts of power through the motherboard tracers (I've never experienced this, but it's dissemination of opinions I've gathered from surfing on here, so take it with a grain of salt I suppose).

The fans will run at full speed regardless of whether it's run on the motherboard header or molex pin. 3 pin fan power is uncontrolled unless you put a voltage regulator in front of it. Motherboards provide 12v to it, they do not control it. A controller will have a rheostat to control the voltage supplied to each fan channel as dictated by you with knobs, or automatically from a fan speed profile that you set up with software if you use your mobo's PWM feature and a controller that can read PWM signals and adapt it's outputs based on that.

As far as the restriction, I'm coming from the perspective of a number of years building aquariums, where 90 degree bends were strongly recommended against on a positive pressure tubing run, usually of larger than 1" ID. I imagine that in the smaller confines of 1/2" ID or smaller, those 90 degree bends matter more. I don't know how much more restrictive it is than the flow through a GPU or CPU block, it might be less than those, with those being the bottlenecks, but I know when I design a system, I wouldn't want to worry about 90 degrees being the bottlenecks in my tubing. My current system is all straight lines with any bends being in the tubing so they're very wide.

Whatever you do don't buy twice if you can at all help it... Use bends in your tubing runs instead of 90 degree or 45 degree adapters, use barbs and cheap hose clamps rather than compression fittings, all to save up so you can just buy once and buy right. Better to just spend the extra $30(?) or so up front rather than buy another $60 radiator or replace that one with a $100 radiator down the line. Plus less frustration replacing everything down the road if you've already got a setup working now, it's easier to add a GPU than replace radiators and add a GPU and replumb and mount them.
post #9 of 12
Thread Starter 
Quote:
Originally Posted by Dr.GumbyM.D. View Post
*SNIP*
Whatever you do don't buy twice if you can at all help it... Use bends in your tubing runs instead of 90 degree or 45 degree adapters, use barbs and cheap hose clamps rather than compression fittings, all to save up so you can just buy once and buy right. Better to just spend the extra $30(?) or so up front rather than buy another $60 radiator or replace that one with a $100 radiator down the line. Plus less frustration replacing everything down the road if you've already got a setup working now, it's easier to add a GPU than replace radiators and add a GPU and replumb and mount them.
I bet you hear this all the time - I hate it when you're right. Rep+

So a multi- 3-pin adapter to molex to PSU is a better choice than making my mobo route 12v to multiple sources.

I'm not a fluid dynamics expert, but does more than one 90* in a loop cause any more restriction in a pressurized system than just one?

Decisions, decisions: is one much better than the other?
Ceramique - 22g $9.50

MX-2
30g $25

EDIT: nvm, I see that the mx-2 is better by less than 1*C. for half the price for 22g, i'll get the ceramique
Edited by Nytehawk - 5/1/11 at 10:29am
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Nytehawk Redux
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post #10 of 12
Thread Starter 
OF COURSE Jab-tech is out of stock!
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