Thoughts on this WC setup

Sifal

Sifal

Sifal

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Joined
31 May 2012
Posts
16
System specs:

Asus Sabertooth 990fx
AMD 8150
ATI 6970
32 GB 1600 RAM
256GB SSD

I want to watercool both the CPU and GPU (at stock clocks) so I have as close to a completely silent system as possible. Silence means low rpm fans so I was thinking of having lots of radiator surface area with low rpm air.
I was thinking of getting a Corsair Graphite 600t and mounting one 200mm radiator in front (intake), one 200mm radiator in roof (exhaust) and one 120mm radiator on the outside of case at rear (exhaust). The 200mm rads will have Phobya 180mm 700rpm fans (intake=pull, exhaust=push). These fans seem to have a reasonable static pressure for such large beasts. The external will have a suitable (quiet) 120mm fan pushing air out of case through the radiator.
Now, I appreciate the 700 rpm fans are not radiator optimised but I will have radiators equivalent to a 120.7 and as I'll not be overclocking in the near future do you think this setup is enough to be nice cool but also extremely quiet.

Also, Is it worth fan controlling the fans (which are all be 3 pin) or at such low rpms might they just as well run at full the whole time because they are so quiet anyway.
Should I add in an extra intake fan to avoid negative pressure or shouldn't it matter too much? The plan is currently to only have 3 fans all on radiators!?
Finally, Will a single 18W Laing DDC handle the flow for 3 radiators and 2 blocks?

Thanks
 
Sifal said:
System specs:

Asus Sabertooth 990fx
AMD 8150
ATI 6970
32 GB 1600 RAM
256GB SSD

I want to watercool both the CPU and GPU (at stock clocks) so I have as close to a completely silent system as possible. Silence means low rpm fans so I was thinking of having lots of radiator surface area with low rpm air.
I was thinking of getting a Corsair Graphite 600t and mounting one 200mm radiator in front (intake), one 200mm radiator in roof (exhaust) and one 120mm radiator on the outside of case at rear (exhaust). The 200mm rads will have Phobya 180mm 700rpm fans (intake=pull, exhaust=push). These fans seem to have a reasonable static pressure for such large beasts. The external will have a suitable (quiet) 120mm fan pushing air out of case through the radiator.
Now, I appreciate the 700 rpm fans are not radiator optimised but I will have radiators equivalent to a 120.7 and as I'll not be overclocking in the near future do you think this setup is enough to be nice cool but also extremely quiet.

Also, Is it worth fan controlling the fans (which are all be 3 pin) or at such low rpms might they just as well run at full the whole time because they are so quiet anyway.
Should I add in an extra intake fan to avoid negative pressure or shouldn't it matter too much? The plan is currently to only have 3 fans all on radiators!?
Finally, Will a single 18W Laing DDC handle the flow for 3 radiators and 2 blocks?

Thanks
Click to expand...

That surface area should easily be sufficient, but I'm not sure on the case - ie whether you could actually get a bigger rad in there somewhere.

Regarding Rads, I can only recommend 120mm rads - simply because the larger fans are rubbish in comparison.

I'd always urge toward using Gentle Typhoons either 1450 or 1800's via a fan controller. They are quiet and do work really well.

The Laing 18w pump is fine for 2 or even 3 blocks, so long s they are not too restrictive. I've got two of them in series in my server - pumping through a Swiftech Apogee XT and a EK gtx 295 sandwich, as well as 4x120.2 rads (its my folding/media server so on 24/7). Even with the power removed from one of them, the fluid flies round, so I don't believe that you need any more than one.
 
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