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01-15-2020 01:25 PM
doyll
Quote: Originally Posted by ciarlatano View Post
If you recall...way back when.....I had tested a number of CLC and air coolers in a Luxe. I had the same result with CLCs having a lower internal case temp, and you said the same thing at that time. It turned out to be simply a case of having the additional exhaust fans that the CLCs provided. Adding two exhaust fans up top to the air cooling setups evened it right out. Conversely, air coolers produced lower in case temps than CLCs in the EVOLV ATX.
Indeed, I do remember.
01-13-2020 12:52 PM
ciarlatano
Quote: Originally Posted by doyll View Post
Before I would say air inside of case / going into cooler 'is similarly cool' I would first monitor air temp into cooler at the different fan speeds .. like from idle at about 600rpm, mid-level load at about 800-1000rpm and at full laod at about 1100-1200rpm to see what the actual air temp into cooler is.

Obvious reason is air coming out the rear exhaust vent which is behind tower cooler will be much warmer than air coming out the top vents which are drawing cool front intake air up thus drawing heated exhaust off of hard working GPU up into CPU cooler's air intake area and into it.
Sorry, but there is no alternate way of knowing what air temp into cooler is. Only way is to monitor it with a remote sensor probe while system is running at different load levels.
If you recall...way back when.....I had tested a number of CLC and air coolers in a Luxe. I had the same result with CLCs having a lower internal case temp, and you said the same thing at that time. It turned out to be simply a case of having the additional exhaust fans that the CLCs provided. Adding two exhaust fans up top to the air cooling setups evened it right out. Conversely, air coolers produced lower in case temps than CLCs in the EVOLV ATX.
01-13-2020 11:35 AM
doyll
Quote: Originally Posted by Molitro View Post
Yeah I misspoke, or just flat out said the wrong thing.
Air inside the case was probably similarly cool (I did test out several exhaust setups, including top exhaust fans, to no real effect, only using 2 fans instead of 1 in the D15 had an effect on CPU temps).

Really what happened is the GPU no longer has the D15 milimeters from it's back, which lead to a couple of degrees of improvement, as air all around the GPU is now cool, as opposed to having a heat source just above (and of course the opposite is true also, GPU outputting plenty of heat right on the D15).


The real improvement though, I can assure was on the noise side of things. The D15 needed more RPM to achieve the same "lowest possible for my system" CPU temps, Freezer II is measurably quieter at full load, either with or without GPU load.
Before I would say air inside of case / going into cooler 'is similarly cool' I would first monitor air temp into cooler at the different fan speeds .. like from idle at about 600rpm, mid-level load at about 800-1000rpm and at full laod at about 1100-1200rpm to see what the actual air temp into cooler is.

Obvious reason is air coming out the rear exhaust vent which is behind tower cooler will be much warmer than air coming out the top vents which are drawing cool front intake air up thus drawing heated exhaust off of hard working GPU up into CPU cooler's air intake area and into it.
Sorry, but there is no alternate way of knowing what air temp into cooler is. Only way is to monitor it with a remote sensor probe while system is running at different load levels.
01-13-2020 10:53 AM
Molitro
Quote: Originally Posted by doyll View Post
If case is cooler with CLC then with air cooler than case airflow was not setup properly .. and I'm guessing you didn't have 2x 140mm top exhaust vent fans before either. Did you ever monitored air temp into your D15? Would be interesting to know what it was.
Yeah I misspoke, or just flat out said the wrong thing.
Air inside the case was probably similarly cool (I did test out several exhaust setups, including top exhaust fans, to no real effect, only using 2 fans instead of 1 in the D15 had an effect on CPU temps).

Really what happened is the GPU no longer has the D15 milimeters from it's back, which lead to a couple of degrees of improvement, as air all around the GPU is now cool, as opposed to having a heat source just above (and of course the opposite is true also, GPU outputting plenty of heat right on the D15).


The real improvement though, I can assure was on the noise side of things. The D15 needed more RPM to achieve the same "lowest possible for my system" CPU temps, Freezer II is measurably quieter at full load, either with or without GPU load.
01-13-2020 06:51 AM
doyll
Quote: Originally Posted by Molitro View Post
I've been using a D15 for years, but the Freezer II looked good enough that I wanted to try it.
Being fair, although I still like the D15 for simplicity if not anything else, I now have a quieter setup (it's about as silent at idle, but on load it's noticeably less noise, since the Freezer is so overkill it barely lowers temps over 50%), with also the benefit of the case being cooler, the GPU having lowered about 2º.



Yeah i was gonna put the tubs at the bottom so any air bubbles would stay on the top of the radiator, away from the tubes.

And yeah is an overkill of fans, but it's so nice to be able to keep them running so low.
If case is cooler with CLC then with air cooler than case airflow was not setup properly .. and I'm guessing you didn't have 2x 140mm top exhaust vent fans before either. Did you ever monitored air temp into your D15? Would be interesting to know what it was.

My builds have air temp inside of case (air entering coolers) no more than 2-3c above room temp. Temps I've seen from reviews comparing Arctic Freezer II have been case built systems without air temp into coolers being monitored / recorded and used for delta temp comparisons .. and anyonw who understand case airflow knows stock case fan setup gives terrible case airflow / high temp air into coolers. This means tests prove nothing more than what temps are in that build.
01-12-2020 11:24 AM
Molitro
Quote: Originally Posted by doyll View Post
Sounds like good setup. Probably more fans than needed, especially exhaust, but as you have them might as well use them.



I won't use CLCs, but that's me. Pobably best to leave rad up top top because over time there is coolant loss and air getting into system, so with rad above pump air will be up there and not get caught in pumpwhere it would probalby cause damage.
I've been using a D15 for years, but the Freezer II looked good enough that I wanted to try it.
Being fair, although I still like the D15 for simplicity if not anything else, I now have a quieter setup (it's about as silent at idle, but on load it's noticeably less noise, since the Freezer is so overkill it barely lowers temps over 50%), with also the benefit of the case being cooler, the GPU having lowered about 2º.

Quote:
there is coolant loss and air getting into system, so with rad above pump air will be up there and not get caught in pumpwhere it would probalby cause damage.
Yeah i was gonna put the tubs at the bottom so any air bubbles would stay on the top of the radiator, away from the tubes.

And yeah is an overkill of fans, but it's so nice to be able to keep them running so low.
01-12-2020 10:45 AM
doyll
Quote: Originally Posted by Molitro View Post
Hello fellas, question.

Right now I'm quite happy running a Fractal S2 with 5 Noctuas pushing air in (3 front 2 bottom) and an Arctic Freezer 2 280 on top pushing air out plus one last fan on the back, out.
This is allowing me very quiet operation, with the case fans ramping to a max of about 700 RPM and the Freezer to 50% under heavy load, more than that having pretty much no effect, and so the GPU gets about as much cool air as it's gonna get.

I'm thinking of putting the Freezer on the front of the case, leaving just the 2 fans of the bottom and it pushing air in, then placing 1 or 2 on top to pull air out, along with the back fan.
Reason being one of "safety", as in, if something in the radiator leaked (Guessing if something fails it'll be on the pump side, but you never now), it wouldn't leak over anything, whereas now it could leak on the GPU.

The question is, do you think it'd affect the temperatures of the inside of the case (so the GPU) in any messurable way? My guess is the CPU probably barely puts enough heat in the radiator to heat up the case, or to counter the 2 bottom fans, but...
Reason I'm asking instead of just testing it out is that because of the way the cables are routed, it takes me a while to move things around, so I might aswell ask first if people here think it'd be worth it to do the swap.
Sounds like good setup. Probably more fans than needed, especially exhaust, but as you have them might as well use them.

I won't use CLCs, but that's me. Pobably best to leave rad up top top because over time there is coolant loss and air getting into system, so with rad above pump air will be up there and not get caught in pumpwhere it would probalby cause damage.
01-12-2020 10:01 AM
Molitro Hello fellas, question.

Right now I'm quite happy running a Fractal S2 with 5 Noctuas pushing air in (3 front 2 bottom) and an Arctic Freezer 2 280 on top pushing air out plus one last fan on the back, out.
This is allowing me very quiet operation, with the case fans ramping to a max of about 700 RPM and the Freezer to 50% under heavy load, more than that having pretty much no effect, and so the GPU gets about as much cool air as it's gonna get.

I'm thinking of putting the Freezer on the front of the case, leaving just the 2 fans of the bottom and it pushing air in, then placing 1 or 2 on top to pull air out, along with the back fan.
Reason being one of "safety", as in, if something in the radiator leaked (Guessing if something fails it'll be on the pump side, but you never now), it wouldn't leak over anything, whereas now it could leak on the GPU.

The question is, do you think it'd affect the temperatures of the inside of the case (so the GPU) in any messurable way? My guess is the CPU probably barely puts enough heat in the radiator to heat up the case, or to counter the 2 bottom fans, but...
Reason I'm asking instead of just testing it out is that because of the way the cables are routed, it takes me a while to move things around, so I might aswell ask first if people here think it'd be worth it to do the swap.
01-12-2020 06:11 AM
doyll
Quote: Originally Posted by ciarlatano View Post
The temp under load seems fine....but if you were running a 60C idle temp, opening a web browser would send it 80C+. I'm thinking the sensors are giving a bad idle temp reading.
Good point!
Indeed! It's not possible to be 60c idle and 70c full load .. at least I can't think of any way it could be. Defective sensor is logical.
Maybe slip finger under fins and feel top of cooler base to see how warm it is at idle and when stress testing. That's the only place you will feel any heat in cooler, and even it would be hot.
01-12-2020 05:56 AM
ciarlatano
Quote: Originally Posted by doyll View Post
60c is way too hot for idle temp, but 68c heavy load is reasonalbe. Maybe CPU is not working hard when you are gaming.
I would run a CPU stress test to find out what temps are under extreme load before remounting cooler.
The temp under load seems fine....but if you were running a 60C idle temp, opening a web browser would send it 80C+. I'm thinking the sensors are giving a bad idle temp reading.
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