Radiator Fans as intake = 13c avg less then exhaust.

[Turtle Rig]

I want to know the give and take on this subject.  I have my Rad fans blowing air into the case and rad from up top.  I bought a filter that just fits the size.  However my case temps get warmer along with the stuff in the case.  However I can combat that with switching to switch 2 on my case.  Do I combat that, and leave the intake from up top.  Or change it back to exhaust.  Btw there is a nice 10 or 12 c less while running Aida while fans only at 600rpm or 650rpm.  Should I put that filter I bought on,, Or should I change the config so the M.2 and motherboard are couple C lower ?  I can get low mb and M.2 temps just need to switch to 2 on case. 

[For Science!]

1 hour ago, Turtle Rig said:

-

The post is unfortunately barely intelligible to me. I am going to bullet out what I assumed from the post.

 

- You have an AIO that is top mounted in your case

- You used to have the fans as exhaust, and now you've flipped them as intake

- After switching the fans to intake, you observe a decrease in CPU temperatures

- However the case internals heat up as a result

- You can compensate for this by increasing the fan speed using the fan controller on the case (switch 2???)

- This is all without a fan filter on the top

 

If this is correct, my answer to some of the questions:

- Yes, if you have a top intake, put a filter on it, otherwise this is a dust vacuum.

- If switching the fan speed up (switch 2) and the noise is tolerable, thats fine

- Make sure your GPU isn't louder as a result of all of this

- I would have thought the best configuration is to have the chassis fan going at speed 2, and then have the radiator fans on exhaust.

- You should stress test with something like RealBench to make sure you know what the system sounds like when both CPU and GPU are under stress.

[Turtle Rig]

8 minutes ago, For Science! said:

The post is unfortunately barely intelligible to me. I am going to bullet out what I assumed from the post.

 

- You have an AIO that is top mounted in your case

- You used to have the fans as exhaust, and now you've flipped them as intake

- After switching the fans to intake, you observe a decrease in CPU temperatures

- However the case internals heat up as a result

- You can compensate for this by increasing the fan speed using the fan controller on the case (switch 2???)

- This is all without a fan filter on the top

 

If this is correct, my answer to some of the questions:

- Yes, if you have a top intake, put a filter on it, otherwise this is a dust vacuum.

- If switching the fan speed up (switch 2) and the noise is tolerable, thats fine

- Make sure your GPU isn't louder as a result of all of this

- I would have thought the best configuration is to have the chassis fan going at speed 2, and then have the radiator fans on exhaust.

- You should stress test with something like RealBench to make sure you know what the system sounds like when both CPU and GPU are under stress.

Thank you for your reply.  Yes the Rad fans our up top of case.  Yes the noise is tolerable the and mobo and M.2 temps go down to normal levels.  My GPU is at 500rpm I cant hear it.  Also I ordered a filter that is 240mm and its magnetic and should fit nicely up top.  So there is filter.  I can combat the heat from intake to case with switch to 2.  3 is too loud.  So I can compensate the case heat.  The CPU is much more cooler.  double digits.  If I go exhaust do I place the fan on the top then case on bottom.  Or fans on bottom rad on top.  Thanks a lot science!

[For Science!]

2 minutes ago, Turtle Rig said:

-

Either configuration is fine, there are typically:

 

Case

Fans

Radiator

 

or

 

Case

Radiator

Fan

 

These are known as pull (top) and push (bottom) configurations. Pull is nominally easier for cleaning dust off the radiator but depending on the fan, push configurations can give slightly better noise characteristics depending on the fan.

[Turtle Rig]

Thank you science! for that info.  I just want silence without compromising mobo or M.2 heat. + optimizing cpu heat and getting as little dust as possible.  I think I will try sticking with the intake style since it is yielding aida in the 40's and 50's c.  Mobo gets hot at 48c and M.2 at 50c.  Turning on switch to 2 both changed intake and exhaust fan.  Its not noticable, but takes down the temps to 40mb and 40 M.2 depending on room tempo.  HD can be 36 or 38c and mobo 36 ro 38c.  Im here in sunny LA, doesn't help the cooling that is for shure.

[For Science!]

1 minute ago, Turtle Rig said:

 

All those temperature sounds perfectly find, so just pick what you like in terms of noise and dust. Basically you have enough headroom to do whatever you want.

[Turtle Rig]

Thanks much Science, you rock!

[Turtle Rig]

Hey fellas, thanks for reading my post.  I have Fans pushing on the rad up top, pushing in cold air from outside.  This had made my mobo temp 6c more and M.2 about 6c more.  To combat this I turn the switch to 2 on my case.  I can hear the front 140mm and rear 120mm but what I hear the most is the pump, which is for another section ; plus Im getting new kit mines defective with this noise. Anyhow back to the subject at hand.  Do you think I would get lower temps with this config, or is it a dumb thing to do.  Thanks

[GER_T4IGA]

Unless you have a problem with potentially obsoleting your dust filters this sounds reasonble. In research for my Meshify C watercooling project i found somone claiming almost 10C lower temps using the rear as intake and both rads as exhaust. He also removed the padding behind the front mesh for better airflow. This is an example that it could work, so yes, you should test it.

[Turtle Rig]

Thank you Ger_T4IGA for the swift reply,  I didn't think about the dust factor.  Might still try it.

[jiyeon]

It's pretty unconventional, but it would work. There's no harm in trying it once and seeing how your temperatures get affected by it.

 

Although, personally the best setup I can see is:

Front 140mm = intake

Top Rad = exhaust

Rear 120mm = exhaust

 

Naturally hot air rises, so it makes sense to have the top exhausting air rather than pushing in cold air.

[Turtle Rig]

Yes seoz that is how I had it, but I changed the Rad / Fans to intake and my prime95 temps dropped from 82c max to 58c max in a warmish los angeles room.  WInter will yield even better results.

 

I need a good noctua intake 140mm if I want the rad fans be intake, or I can put as exhaust and get higher temps but mobo and m.2 stay cooler,, without needed cooling.