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First foray into watercooling

post #1 of 15
Thread Starter 
I'm looking at putting together a watercooling loop for my CPU+GPU in a CM 690II with a portion of my college graduation money, and being a complete newcomer to this I thought I'd get some input on the bits I've picked out. Thought it'd be wise from a price point of view to begin with the RS240 kit and add an RX240 radiator in the bottom of the case. I'd go with the pair of RX240s, but only the slimmer RS rad will fit in the top. Anyway, the list.

XSPC Rasa 750 RS240 CPU watercooling kit - 129.95
XSPC RX240 - Dual 120mm high performance radiator - 66.95
XSPC Razor 6970 - 84.95
Dangerden FB (Fat Boy) G 1/4 Fittings - 1/2" Barb (x4) - 10.00
10 feet of PrimoFlex Pro LRT White Tubing - 7/16in. ID X 5/8in. OD - 16.00
Plastic Tubing Clamps - Black - 4.00
Yate Loon D12SM-12 Medium Speed (x2) - 7.20
Scythe Kaze Master KM01-BK Fan Controller - 26.99
Total - 346.04

From what I've read the pump in the XSPC kit can easily handle the Rasa block plus a single GPU block (and even multiple low-restriction blocks like the Razor, so I should be fine if I want to XFire).

Also, how much tubing should I get? The RS240 kit comes with 2m (6 feet) of clear cheap tubing, will 10 feet of the higher quality Primochill be way overkill? The loop is planned out to minimize tubing lengths, of course.

Might there be any issues with the setup I have laid out?

Here's the loop diagram. Order is Res/Pump>CPU>RS240>GPU>RX240>Res/Pump

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post #2 of 15
10 ft should be good. Don't forget a kill coil/pt nuke.
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post #3 of 15
10 feet of tubing is a good length. It will no doubt leave you with plenty of extra, but for your first WC experience, that's a good thing. If you decide to switch the order a bit, it'll leave you room to play.

One thing concerning order, most people will suggest not going straight from pump to CPU block. This is because the pump has the potential to add a little heat to the water and you want your cpu to get the coolest water. Accordingly, it's recommended to go to a rad then block as long as it doesn't mess with your loop order too much. Heck, you could even completely reverse your order and be fine. That's similar to my order: Res > pump > gpu > rad > cpu
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post #4 of 15
The rasa kit is a great beginner kit and eases you 'into the water' so to speak. I bought the rasa kit and snagged myself some primochill UV green tubing. I grabbed about 10 feet, too, if i recall.

I also upgraded the fans that came with the kit. They'll get you by, but it'd be worth it to get some better ones.

Either way, you can't really go wrong with the rasa kit. Super cheap and handles quite a bit for its price. Not to mention everything is included already!

EDIT: For what it's worth, Im using the rs360 rasa kit and I'm cooling the cpu/gpu in my sig rig. It can easily handle those two things, so it can prolly handle your setup too. Unless, of course, you can't fit a 360 rad in your case.
Edited by lynxxyarly - 5/29/11 at 7:04pm
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post #5 of 15
Thread Starter 
I thought loop order doesn't ultimately make a difference? Wouldn't the amount of heat added to the loop be comparable to (if not significantly less than) the amount of heat added by the GPU?

Either way that'd be easy enough (and actually would reduce the amount of tubing needed, though I'd want to get some 90/45 degree angled barbs to avoid kinking. Seriously hate the look of anti-kink coils, those will not be used here.

EDIT: Nope, no 360 rads in the 690 II. Only a slim 240 rad in the top and another any-sized 240 rad in the bottom, which is apparently rather remarkable for a mid-tower case.
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post #6 of 15
Quote:
Originally Posted by lynxxyarly View Post
The rasa kit is a great beginner kit and eases you 'into the water' so to speak. I bought the rasa kit and snagged myself some primochill UV green tubing. I grabbed about 10 feet, too, if i recall.

I also upgraded the fans that came with the kit. They'll get you by, but it'd be worth it to get some better ones.

Either way, you can't really go wrong with the rasa kit. Super cheap and handles quite a bit for its price. Not to mention everything is included already!

EDIT: For what it's worth, Im using the rs360 rasa kit and I'm cooling the cpu/gpu in my sig rig. It can easily handle those two things, so it can prolly handle your setup too. Unless, of course, you can't fit a 360 rad in your case.
Once following the advice of changing out the fans, I noticed a few degree drop in average temps.
post #7 of 15
10 feet should be plenty. I did this loop with about 4 inches left over from a 5 foot length of tubing.
post #8 of 15
Quote:
Originally Posted by thrasherht View Post
10 feet should be plenty. I did this loop with about 4 inches left over from a 5 foot length of tubing.
Nice lighting!
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post #9 of 15
Quote:
Originally Posted by lynxxyarly View Post
Nice lighting!
Thanks, did that for show and tell at my college expo.
post #10 of 15
Yea loop order doesn't matter that guy is full of crap.
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