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Best CPU Water Block (October 2011)?

post #1 of 18
Thread Starter 
Best performance? I am reading mixed reviews and I am not an up to date person on water cooling as I am only recently starting. If someone can please provide me with a website for reviews for parts. I know how to build a loop in theory, but I have no idea which parts are performers.

Also I would appreciate if someone can tell me the best Radiators to get as well as pumps. I am looking at the Swiftech MCP655-B for the pump currently.
Edited by Limes - 10/26/11 at 10:49pm
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post #2 of 18
The two websites which I would trust most with waterblock reviews would be Skinnee Labs and Martins Liquid Lab. They have very thorough reviews, including flow rate and pressure drop data.

As for radiators, that depends on how cool you want to keep everything and how much fannage you want to have going among other things. Also, for pumps, the 655 is good for high flow loops, but if your blocks, assuming you will be needing two, are higher restriction then the MCP355 or MCP35X is probably a better option.
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post #3 of 18
Thread Starter 
Quote:
Originally Posted by DirektEffekt;15469979 
The two websites which I would trust most with waterblock reviews would be Skinnee Labs and Martins Liquid Lab. They have very thorough reviews, including flow rate and pressure drop data.

As for radiators, that depends on how cool you want to keep everything and how much fannage you want to have going among other things. Also, for pumps, the 655 is good for high flow loops, but if your blocks, assuming you will be needing two, are higher restriction then the MCP355 or MCP35X is probably a better option.

Thanks for the information +Rep. What exactly makes the MCP35X better than the MCP655? I assumed if the MCP655 pumped more water it would be the best. I am probably missing something here.
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post #4 of 18
not to thread jack but would something like a EK spreme hf nickel plated acetel (sp) be a good match for the 655, if not what would, i like EK but open to other brands
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post #5 of 18
XSPC Raystorm or so I was told. It looks great too!

Also hear that the RX360 rad is good for fans under 1850rpm and Black Ice rads for faster fans.
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post #6 of 18
Yeah, the RX series is good for low speed fans, it's what I'm using at the moment. But the thing with the MCP655 is that it is a high flow pump but it has a lower pressure which means that when there is restriction in the loop it won't pump as much water as the MCP35X would since it has a higher pressure.

In a loop the pressure of a pump is more important if you are running restrictive parts because it takes more pressure to overcome the restriction. Pump-Rad Optimiser. Have a look at that, it will give you an idea of the flows you would be expecting. If you are expecting over 1.5GPM with an MCP35X then you can either run the 35X at a lower speed using the PWM control on your motherboard or get an MCP655. The reason I say this is because the MCP35 series tends to get quite hot as the flow rate increases.

http://martinsliquidlab.org/2011/05/30/ddc3-2-pump-heat-scoping/ Ideally the MCP35X wouldn't want to pump more than 1.5 - 2 GPM to avoid excess heat. This is something to consider with regards to the pumps longevity and in the case where the flow exceeds that value then the MCP655 might be better. Of course, as I said before, the other option is to reduce the speed of the MCP35X which is what I would recommend given that it would mean you could add more restrictive parts later and just increase the pump speed again. On the same note, I actually purchased MORE restrictive blocks for my GPUs since I will be using two MCP355s and I wanted to keep the flow rates under 1.5GPM.
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post #7 of 18
Thread Starter 
Quote:
Originally Posted by DirektEffekt;15470248 
Yeah, the RX series is good for low speed fans, it's what I'm using at the moment. But the thing with the MCP655 is that it is a high flow pump but it has a lower pressure which means that when there is restriction in the loop it won't pump as much water as the MCP35X would since it has a higher pressure.

In a loop the pressure of a pump is more important if you are running restrictive parts because it takes more pressure to overcome the restriction. Pump-Rad Optimiser. Have a look at that, it will give you an idea of the flows you would be expecting. If you are expecting over 1.5GPM with an MCP35X then you can either run the 35X at a lower speed using the PWM control on your motherboard or get an MCP655. The reason I say this is because the MCP35 series tends to get quite hot as the flow rate increases.

http://martinsliquidlab.org/2011/05/30/ddc3-2-pump-heat-scoping/ Ideally the MCP35X wouldn't want to pump more than 1.5 - 2 GPM to avoid excess heat. This is something to consider with regards to the pumps longevity and in the case where the flow exceeds that value then the MCP655 might be better. Of course, as I said before, the other option is to reduce the speed of the MCP35X which is what I would recommend given that it would mean you could add more restrictive parts later and just increase the pump speed again. On the same note, I actually purchased MORE restrictive blocks for my GPUs since I will be using two MCP355s and I wanted to keep the flow rates under 1.5GPM.

I understand now. Thanks. I was under the impression that the MP655 had a higher pressure, which is why it didn't make sense to me originally.
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post #8 of 18
Best of the best is the ~$300 Aquacomputer's Kryos Silver.

Most blocks are pretty good, it really comes down to the looks and price imo:

Kryos HF
CPU370
Supreme HF
HK 3.0
Black Sun
RayStorm
Rasa

I've tried multple XSPC rads I have not been disappointed. If you are planning to run <1500 rpm fans, these guys offer a great performance for the money. There have been a few new entrants to the radiator arena. I'm hearing good things about Coolgate.

I've been hearing good and bad things on the 35x. Its probably one of the if the not the best pump out there. The down side, I hear it heats up quite a bit. So much, that they offer a heatsink for it. I have the MCP 355 (ie Laing DDC 3.2) with an XSPC top and I have not been disappointed. Its powered through several different multi block builds. For a loop with a few blocks, the D5 (ie mcp 655) is a great choice too.
post #9 of 18
Quote:
Originally Posted by wermad;15470277 
I've been hearing good and bad things on the 35x. Its probably one of the if the not the best pump out there. The down side, I hear it heats up quite a bit. So much, that they offer a heatsink for it. I have the MCP 355 (ie Laing DDC 3.2) with an XSPC top and I have not been disappointed. Its powered through several different multi block builds. For a loop with a few blocks, the D5 (ie mcp 655) is a great choice too.

I believe that the MCP35X is almost identical to the MCP355 but with added PWM meaning you can slow it down to reduce the heat.

What I forgot to add before was that you will want your flow rates between 1 and 1.5GPM for an MCP35 series pump, but possibly up to 2, although with the PWM in the 35X that is easily adjustable.

EDIT:
Quote:
Originally Posted by Limes;15470273 
I understand now. Thanks. I was under the impression that the MP655 had a higher pressure, which is why it didn't make sense to me originally.

Not a problem, that was something I had a little trouble with when I started watercooling, stumbling onto Skinnees site helped a lot though! Those sites definitely help a lot for anyone who is new to watercooling!
Edited by DirektEffekt - 10/26/11 at 11:35pm
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My System
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16GB G.Skill Ares (4x4GB @ 1866MHz OC'd to 2133) Samsung 840 Evo 500GB WD Black 2.5" 750GB EK Supremacy EVO Acetal 
CoolingCoolingCoolingCooling
Aquacool NeXXos UT60 240mm Radiator EK XE 360 Radiator x 2 EK-FC780 GTX Ti Acetal /w Backplate and Reinfor... 8 x EK Vardar F4 
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post #10 of 18
Quote:
Originally Posted by DirektEffekt;15470297 
I believe that the MCP35X is almost identical to the MCP355 but with added PWM meaning you can slow it down to reduce the heat.

What I forgot to add before was that you will want your flow rates between 1 and 1.5GPM for an MCP35 series pump, but possibly up to 2, although with the PWM in the 35X that is easily adjustable.

Hook up your pump to a fan controller and adjust the power to decrease noise and heat (when running the 35x smile.gif). I have mine hooked up to a Scythe knob controller, which is recommended since the DDC(s) have a minimum start voltage and can go a bit below that once running. I've never really got into pwm since it involves setting more than just a simple turn of the dial of a controller. For the slightly lower price and about 95% of the performance, I would opt for a 355. With an aftermarket top, it should match or edge out the 35x but they'll cost the same.
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