post #1 of 1
Thread Starter 
Hi, I'm not sure whether these questions should be here or the watercooling forum, but I'm posting here since I have concerns about how the fit of the components in my chosen case will affect the cooling performance.

Just a little bit of background and goals, I'm a casual gamer and right now I've only got a handful of games installed in my computer, but most of my time is still spent on Total War (Shogun II and Rome II for now). I've been contemplating a new build, which needs to be much quieter and at least just as cool as my current system.(1) The noise on its own isn't bad on this, but since it's a hot climate I prefer using speakers over headphones, and also run comms with other players through it. The only time the GPU fans and the rad fan are inaudible is when the A/C is on, as it blows directly towards the case intake, but then the A/C becomes the source of noise. On single player late at night I have no issues with this rig, but since the majority of bonding time with my brother (who moved a few years ago) is having co-op Total War campaigns, I'd like to deal with the noise issue so we can chat while at the campaign map (or any other lulls in other games) when I upgrade. I won't get into specifics on the planned components yet, but of course I'd get stuff faster than what I have now, which I'll probably sell (cheap) to my cousin given I've had the CPU for years.

So anyway here's the plan. First, the Bitfenix Phenom case, as it's known to be very quiet, the downside to that is lack of ventilation and ergo, heat. Looking at the case, and following the laws of thermodynamics, I'm planning the entire cooling system to be:

1) 2x120mm rad on the top vent for the CPU, and running at lowest possible speed (replace the fans if necessary), and depending on hot air to rise naturally off the rad

2) Install an NZXT G10 adapter/kit on the graphics card, and then a 120mm rad (maybe with a pull exhaust fan with it) in the rear exhaust port

3) 2x120mm Silverstone AP121 intake fans on the bottom, with matching magnetic filters

4) Maybe install the PSU with its fan inside the case, so it would already benefit from the bottom filter

note: I'll only use closed-loop kits; also return policies aren't as good over here, and basically I only get replacements for defective stuff, so as much as possible I'd like to avoid relying too much on trial and error and selling stuff cheap.

Now my questions are on points 1 and 2 above. I won't have a lot of space between the rad fans and the NZXT G10 on the GPU, but:

1. Will it be that huge a problem considering I don't have a front intake blowing cool air over the top of the GPU, as my current system blows air between the GPU and the PSU mount?

2. Will it be a potentially bigger problem given that the NZXT G10's fan for the other chips spins slower than stock fans, considering it's opposite the rad fans with no front intake?

3. Or is my idea about running the rad fans at much lower speeds vs the 1500rpm on the G10, and counting on hot air to rise naturally off the rads mounted on top, are theoretically at least a good enough measure for letting the G10 do its job of cooling the VRAM and mosfets?

4. Should I just go with the miniITX version and install two 120mm rads on top, one each for the CPU and another for the NZXT G10 on the graphics card, allow the fans to run as fast as they can (upgrade if necessary)? Then if it'll fit, add pull exhaust fans over the rads, and use the rear exhaust port for a 120mm intake fan?

(1) Silverstone PS07, AP121 intakes, i7-2600 and HD7850, Kuhler 620 on the CPU; usually running just 6deg C over ambient with the A/C running on the CPU, but playing a few hours of Total War the GPU still comes close to 80deg C if the A/C wasn't running the whole time
Edited by PM323 - 3/10/14 at 12:21am