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I like negative pressure in many applications including this one, but it requires a different approach to dust management than positive pressure. Blow it out often, and you'll be good to go.
Negative pressure in this case would reduce the radiator efficiencies. Easy fix, turn the rear fan around and add a third fan on the front (if it will fit).I like negative pressure in many applications including this one, but it requires a different approach to dust management than positive pressure. Blow it out often, and you'll be good to go.
Interesting. I can turn the rear fan around, however I can't add another 140mm fan to the front. I would have to remove both 140mm's and add three 120mm's which I don't have.Negative pressure in this case would reduce the radiator efficiencies. Easy fix, turn the rear fan around and add a third fan on the front (if it will fit).
You might as well put the rear fan as an intake; it'll cool your VRMs and you don't really have any front to back air flow anyway (any air pushed in the front is more than being pulled out by the side radiator). You could also put your CPU rad fans at the top as intake; your CPU won't pump much heat into the case anyway and the CPU cooling will be better (and therefore fan speed can be lower and quieter). GPU rad definitely needs to go straight out of the case due to being the largest source of heat in the PC.Buddy of mine told me I have too much negative pressure in this setup.
1 - 120mm rear fan - exhaust
2 - 140mm front fans - intake
Side radiator 3 120mm fans - Exhaust
Top radiator 3 120mm fans - Exhaust
Is he correct? If so, what would be best way to fix, should I just turn the side rad fans into an intake?
View attachment 2542723
It'll help. I don't know if it will be immediately noticeable by you but it will help.Should I just turn the rear around regardless to help a little?
The configuration your fans are in makes very little sense as the majority of the cool air intake from the front is going to be immediately diverted and exhausted out the side. and the top, it will not travel deeper into the build.Buddy of mine told me I have too much negative pressure in this setup.
1 - 120mm rear fan - exhaust
2 - 140mm front fans - intake
Side radiator 3 120mm fans - Exhaust
Top radiator 3 120mm fans - Exhaust
Is he correct? If so, what would be best way to fix, should I just turn the side rad fans into an intake?
View attachment 2542723
The fans on the side are pushing through a rad though, so I can see the reasoning behind the setup...?...but I agree re. the cool air not making it to the rest of the components...the airflow through the case is pretty severely disrupted by the configuration.The configuration your fans are in makes very little sense as the majority of the cool air intake from the front is going to be immediately diverted and exhausted out the side. and the top, it will not travel deeper into the build.
I agree re. moving the GPU radiator to the top of the case.GPU tubes look strained in this setup, I would watch out for leaks.
I really think one of the radiators should be intake.
I would place the gpu radiator at top for excaust,(because most likely this one produces t the most heat,and heat goes up so)
CPUradiator at the side as intake,
Front should be all intake fans
Back fan,should be outtake
I also thought this. However, I have currently have 6x 140 mm fans blowing into my case (all filtered) and only one 120 mm fan and my 3080 FE blowing air out. As you say, my case, like most others has LOTS of meshed/holes that the "excess" intake air clearly flows out of.Considering the pitiful static pressure created by consumer fans the whole idea of pressurizing or creating a vacuum in an unsealed PC case seems unrealistic.
I guess it depends on your definition of "pressurise" etc.?Considering the pitiful static pressure created by consumer fans the whole idea of pressurizing or creating a vacuum in an unsealed PC case seems unrealistic.
Something measurable by a manometer. Air flow DNE pressure. Computer cases are hardly sealed environments (although they do manufacture computer cases that are sealed for industrial applications).I guess it depends on your definition of "pressurise" etc.?
Indeed, I think dust collection likely has more to do with pockets of "dead" non-circulating air. Certain fan configs will have such dead spaces, which then accumulate dust. In addition, "negative pressure" configs (in equalising the pressure) will tend to pull air (and dust) into the case from places where the air isn't being filtered.Something measurable by a manometer. Air flow DNE pressure. Computer cases are hardly sealed environments (although they do manufacture computer cases that are sealed for industrial applications).
I tend to use it in a (much) wider, more general sense? Given the context, we're not really talking about creating pressure vessels or vacuum chambers? PC's can have positive or negative pressure setups? It's accepted terminology in general use?Something measurable by a manometer. Air flow DNE pressure. Computer cases are hardly sealed environments (although they do manufacture computer cases that are sealed for industrial applications).
I'm talking about proving there is a pressure differential between the inside of an unsealed PC case and the environment. The pathetic static pressure created by consumer fans makes me believe there won't be such a pressure differential.I tend to use it in a (much) wider, more general sense? Given the context, we're not really talking about creating pressure vessels or vacuum chambers? PC's can have positive or negative pressure setups? It's accepted terminology in general use?
So, what terminology do you think the PC community should adopt instead?I'm talking about proving there is a pressure differential between the inside of an unsealed PC case and the environment. The pathetic static pressure created by consumer fans makes me believe there won't be such a pressure differential.