08-05-2017 03:27 AM - last edited 3 weeks ago by ROGBot
08-05-2017 08:48 AM
qwertz wrote:
Hi,
...only 2x 140mm compression fans that push air in and all holes in pc case closed , only air to pass trough cpu cooler.
...Gpu is the type that pushes heat out of case.
...some sort of soft anti vibration mounts to avoid noise transfer to case?
What fan is most silent and good for compression?
08-06-2017 02:42 AM
davemon50 wrote:
I'm trying to get an idea of how you are configuring your system, but your first statement above has me worried for you. Do you happen to have a schematic of what you are trying to achieve?
You must have good case cooling for internal heat generation outside the CPU heat, especially if you don't have a liquid cooled GPU, so you can't close off the case, it needs to allow for either relief air or exhaust air, or both. Any case will have leakage, so you get relief air to some degree if the case is positively pressurized, but if you seal it without exhaust airflow you will stifle the intake fans' operation and they will ride their curves. When they ride their curves you get less airflow, and higher static and higher noise.
All fan manufacturers publish dBA for their fans, so for comparison look at their catalogued/tested max rpm and dBA, pick the best, and set your system to operate at their lowest possible rpm for the temperatures you are comfortable with.
Yes, on vibration mounts, because all fans transmit vibration to the case regardless of noise generated by blade tip speeds. Rubber.
A final initial thought is that there is a sound/noise benefit to more fans running a greater quantity of fans at lower rpm's for the same amount of cooling (lower rpm's of course meaning lower noise per fan). But be careful there too because more fans also generate more noise. For example, two fans running together at 38 dBA each actually generates more than 38dBA, it will be closer to 41 or 42 instead.
Perhaps you can share a schematic, or a little more on your configuration goals?
08-06-2017 02:47 AM
davemon50 wrote:
I'm trying to get an idea of how you are configuring your system, but your first statement above has me worried for you. Do you happen to have a schematic of what you are trying to achieve?
You must have good case cooling for internal heat generation outside the CPU heat, especially if you don't have a liquid cooled GPU, so you can't close off the case, it needs to allow for either relief air or exhaust air, or both. Any case will have leakage, so you get relief air to some degree if the case is positively pressurized, but if you seal it without exhaust airflow you will stifle the intake fans' operation and they will ride their curves. When they ride their curves you get less airflow, and higher static and higher noise.
All fan manufacturers publish dBA for their fans, so for comparison look at their catalogued/tested max rpm and dBA, pick the best, and set your system to operate at their lowest possible rpm for the temperatures you are comfortable with.
Yes, on vibration mounts, because all fans transmit vibration to the case regardless of noise generated by blade tip speeds. Rubber.
A final initial thought is that there is a sound/noise benefit to more fans running a greater quantity of fans at lower rpm's for the same amount of cooling (lower rpm's of course meaning lower noise per fan). But be careful there too because more fans also generate more noise. For example, two fans running together at 38 dBA each actually generates more than 38dBA, it will be closer to 41 or 42 instead.
Perhaps you can share a schematic, or a little more on your configuration goals?
08-06-2017 02:53 AM
08-06-2017 08:59 AM
08-06-2017 09:57 AM
08-06-2017 11:42 PM
qwertz wrote:
Yes those corsair ones 3.99 mm/h2o pressure, but bearings are not too good/reliable in my opinion ,
Would need help on choosing 4 similar quiet fans , 2 to compress air into case and 2 for top of radiator.
>Atm 2 candidates are corsair ML140 "featuring levitation" and noctua fans
08-08-2017 10:43 AM
08-08-2017 10:02 PM