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Watercooling for $200 - Page 2

post #11 of 20
If you don't like the Rasa kits (I think they're a great value for someone just starting out, but at retail prices) I'd recommend checking the used equipment forums. I keep seeing great deals coming through there. I got a great deal on equipment myself from there
post #12 of 20
Quote:
Originally Posted by koven View Post
xspc rx360 kit
Agreed.
post #13 of 20
What do you have against the Rasa kit's pump? It's about as powerful as a 655-B, and XSPC has fixed the issue causing early pump failure.

It will easily push through the Rasa kit with an additional 2 GPU blocks.
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post #14 of 20
Thread Starter 
Quote:
Originally Posted by charliehorse55 View Post
What do you have against the Rasa kit's pump? It's about as powerful as a 655-B, and XSPC has fixed the issue causing early pump failure.

It will easily push through the Rasa kit with an additional 2 GPU blocks.



Would it not be worth it to pay an extra $50 to get a 655-B and a housing reservoir?
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post #15 of 20
Quote:
Originally Posted by charliehorse55 View Post
What do you have against the Rasa kit's pump? It's about as powerful as a 655-B, and XSPC has fixed the issue causing early pump failure.

It will easily push through the Rasa kit with an additional 2 GPU blocks.
Really? 1:1? Or does the 655-B pull ahead at some point?
post #16 of 20
Could get a 350 pump in the for sale section for $35

RX360 radiators go for $70

Buy the Rasa block new for $50

and finally the tubing / barbs / res should take the rest of the budget.
    
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post #17 of 20
Quote:
Originally Posted by Buska103 View Post


Would it not be worth it to pay an extra $50 to get a 655-B and a housing reservoir?
That graph is for the more powerful 655.

Quote:
Originally Posted by fr0st. View Post
Really? 1:1? Or does the 655-B pull ahead at some point?
The XSPC Pump is actually a bit stronger than the 655-B:

MCP655 + EK Top: 4.95 PSI
MCP655 Stock: 4.72 PSI
XSPC 750: 3.59 PSI
655-B + EK Top: 3.38 PSI
655-B Stock: 3.23 PSI

At extremely high flow rates the 655-B performs better than the XSPC 750 but those conditions do not represent a real loop.

The 655-B also uses almost double the amount of electrical power. It's only advantage is that it's dead silent.
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post #18 of 20
Thread Starter 
Can you give me a link to the location of the information you posted?

I read somewhere that the 655-B is a 655 running at speed setting 4. The difference between the 655 and the 655-B is that the 655 is a 5 speed variable (you control the speed) and the 655-B is a pump that runs continuously at speed 4.

I've also read that I would only benefit by high pressure pumps if I was using NB or RAM waterblocks; both of which I hear are high-restriction parts of a watercooling. Since, I will never be adding either, I initially chose the 655-B over the 355.
I always thought the X2O was crap. Was I wrong?
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post #19 of 20
I got the pump testing data from Martin and Skinnee Labs. You are correct on the 655-B. A 655 on setting 4 is a LOT weaker than on setting 5 and this makes it worse.

I have complied all of that data into a easy format for you: (rest of the pumps)

MCP355 + XSPC Top: 6.14 PSI
MCP35X Stock: 6.13 PSI
MCP655 + EK Top: 4.95 PSI
MCP655 Stock: 4.72 PSI
MCP355 Stock: 4.63 PSI
MCP350 + Top: 4.48 PSI
DCP 4.0 Stock: 3.83 PSI
XSPC 750: 3.59 PSI
655-B + EK Top: 3.38 PSI
MCP350 Stock: 3.25 PSI
655-B Stock: 3.23 PSI
DCP 2.6: 2.55 PSI
DCP 2.2: 2.08 PSI


As far as pressure vs flow goes, you just want to get 1 GPM. Anything over that has minimal effects on temperature. Those are the pressure ratings for the pumps at 1 GPM, so you can gauge your loop by adding the pressure drop data for the blocks, and then getting a pump that can put out at least that much pressure.

You are correct in that motherboard blocks are highly restrictive - they often represent 2 to 3 times the restriction of a CPU block.
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post #20 of 20
Quote:
Originally Posted by charliehorse55 View Post
I got the pump testing data from Martin and Skinnee Labs. You are correct on the 655-B. A 655 on setting 4 is a LOT weaker than on setting 5 and this makes it worse.

I have complied all of that data into a easy format for you: (rest of the pumps)

MCP355 + XSPC Top: 6.14 PSI
MCP35X Stock: 6.13 PSI
MCP655 + EK Top: 4.95 PSI
MCP655 Stock: 4.72 PSI
MCP355 Stock: 4.63 PSI
MCP350 + Top: 4.48 PSI
DCP 4.0 Stock: 3.83 PSI
XSPC 750: 3.59 PSI
655-B + EK Top: 3.38 PSI
MCP350 Stock: 3.25 PSI
655-B Stock: 3.23 PSI
DCP 2.6: 2.55 PSI
DCP 2.2: 2.08 PSI


As far as pressure vs flow goes, you just want to get 1 GPM. Anything over that has minimal effects on temperature. Those are the pressure ratings for the pumps at 1 GPM, so you can gauge your loop by adding the pressure drop data for the blocks, and then getting a pump that can put out at least that much pressure.

You are correct in that motherboard blocks are highly restrictive - they often represent 2 to 3 times the restriction of a CPU block.
Well, that kinda sucks. I could've got a rasa kit instead of my custom loop with my 655-B. Saved some dollers. Ah well, whaddya gonna do.
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