Optimization

Brehohn · July 25, 2018

Let me go ahead and get this cleared up. I understand radiator and fan placement. But I have questions that are picking at my brain.

Here is my current setup. Phanteks P400S Tempered with a 240 floe riing plus up front in push pull (cooler master rad fans push, stock thermaltake riing fans pulling). Exhaust fans are currently the stock phanteks case fans, for now. My GPU is the 1080ti FTW3. My current issue has stemmed from how hot it gets regardless of the "improved design". So I plan on getting the Hybrid cooler since its $90 right now because the results have been great for an AIO cooler on a GPU.

1. If I was to get fans that are much better than the stock fans, I'm thinking of the Silent Wings 3, will that significantly help temperatures by fans that can pull heat out better?

2. If the front rad fans are pulling heat out and into the case, will having the radiator for the GPU on the back still efficiently cool? In this case, there is not enough room for a top rad. Only fans. Again, the top will have the Silent Wings 3 fans to help pull heat out and the GPU rad will either have a Riing Plus fan or something else that is good for a rad. Open to opinions and options.

That sums up my two questions. I'm trying to be as in depth as possible for the next person asking these questions. I always see people put the radiator on the back sometimes and it never made sense. But people get good results somehow so I'm curious as to how. I plan on building a themed PC this year or next. The more information the better.

Crunchy Dragon · July 25, 2018

6 minutes ago, Brehohn said:

1. If I was to get fans that are much better than the stock fans, I'm thinking of the Silent Wings 3, will that significantly help temperatures by fans that can pull heat out better?

2. If the front rad fans are pulling heat out and into the case, will having the radiator for the GPU on the back still efficiently cool? In this case, there is not enough room for a top rad. Only fans. Again, the top will have the Silent Wings 3 fans to help pull heat out and the GPU rad will either have a Riing Plus fan or something else that is good for a rad. Open to opinions and options.

1. Static pressure is a bigger deal in liquid cooling setups, it's all about how much air you can get through the radiators in as little time.

2. Having the front rads as intake and back rads as exhaust never hurt anyone, usually that's the best configuration for airflow.

Jurrunio · July 25, 2018

3 minutes ago, Brehohn said:

1. If I was to get fans that are much better than the stock fans, I'm thinking of the Silent Wings 3, will that significantly help temperatures by fans that can pull heat out better?

your worst problem is the stupid Phanteks design with next to no consideration in how air should get in the case through the front panel. Take that off if possible for maximum effect, rahter than spending money on fans.

7 minutes ago, Brehohn said:

2. If the front rad fans are pulling heat out and into the case, will having the radiator for the GPU on the back still efficiently cool? In this case, there is not enough room for a top rad. Only fans. Again, the top will have the Silent Wings 3 fans to help pull heat out and the GPU rad will either have a Riing Plus fan or something else that is good for a rad. Open to opinions and options.

can't you mount the CPU rad on the top instead or is it too cramped up there?

Otherwise, I would rather have the top fans pull air inside the case, so the GPU rad gets cooler air rather than sucking in warm air from the front intakes. Putting the top as exhausts wont help reduce air temperature the GPU rad gets mind you.

Brehohn · July 25, 2018

1 hour ago, Crunchy Dragon said:

1. Static pressure is a bigger deal in liquid cooling setups, it's all about how much air you can get through the radiators in as little time.

2. Having the front rads as intake and back rads as exhaust never hurt anyone, usually that's the best configuration for airflow.

1. Definitely aware of that. I specifically put my Cooler Master high static pressure fans to pull air in due to the limited airflow at the front of this case. Since of course, static pressure fans don't need to pull a bunch of air in, but rather, make it itself correct?

2. That is good to know!

1 hour ago, Jurrunio said:

your worst problem is the stupid Phanteks design with next to no consideration in how air should get in the case through the front panel. Take that off if possible for maximum effect, rahter than spending money on fans.

can't you mount the CPU rad on the top instead or is it too cramped up there?

Otherwise, I would rather have the top fans pull air inside the case, so the GPU rad gets cooler air rather than sucking in warm air from the front intakes. Putting the top as exhausts wont help reduce air temperature the GPU rad gets mind you.

1. That's why I have high static pressure fans in the front of the rad up front. I'm aware of the issue because almost EVERY case has it these days. I even used them as intakes because it makes sense.

2. Would that cause negative pressure? I hear people talk about negative this and positive that. If the top 2 pulls in, and only one fan pulls out the back, there won't be any issues?

Jurrunio · July 25, 2018

7 minutes ago, Brehohn said:

1. That's why I have high static pressure fans in the front of the rad up front. I'm aware of the issue because almost EVERY case has it these days. I even used them as intakes because it makes sense.

at least there are mesh front cases like the RL06 and Meshify C available

7 minutes ago, Brehohn said:

2. Would that cause negative pressure? I hear people talk about negative this and positive that. If the top 2 pulls in, and only one fan pulls out the back, there won't be any issues?

Positive pressure --> More intake air than exhaust air

Negative pressure --> More exhaust air than intake air

The best for performance is to have equal intake and exhuast, which is usually difficult to achieve accurately. Negative pressure tends to increase rate of dust build up (because dust will seep in with air getting in through gaps in the case), that's why I prefer slightly positive pressure than negative pressure. Besides, you can use a high airflow but lower pressure airflow fan at the back to increase amount of exhaust air.