Radiator options

[Bruno_A]

Hello all,

 

Back story

I have a custom watercooled system, with the specs below. I used to have a Ryzen 5 1600, a Ryzen 5 3600 and now, a Ryzen 7 3700X. All of these were non-overclocked, and I had issues with temperatures in both of my Ryzen 5s. Now, with a Ryzen 7 3700X, the temperatures have increased further. I always found it weird how my GPU does not go above 53ºC which hits 2000MHz on load, which is a bit higher than most, and my Ryzen 7 3700X goes up to 75ºC, non-overclocked. My CPU temperatures were always much higher and I did a lot of troubleshooting to try and figure out what's wrong (Changing thermal paste, tightening the block screws at different levels, etc.). I posted here a few times, and people have always said my radiator size was the issue, which is weird, as my GPU, a much more power hungry, and hot, component, stays nice and cool at 53ºC, whereas my CPU is much hotter. Also, even though I'm only running a 240mm radiator, it is a thicker, 45mm radiator, with 38 fins per inch, so, it should do the trick. Also, check JayzTwoCents' video on a build he did, with only a 240mm rad, where he tests the temperatures and proves everyone, that said a 240mm rad wasn't enough, wrong: https://www.youtube.com/watch?v=-Z0mE9avtnY .

 

What I'm looking for

I have sent EK-Water Blocks a support ticket, however, in the meantime, if anyone knows where to find benchmarks on different radiators (sizes, FPI, thickness, etc.), please let me know, because if I'm buying a new radiator, I have no idea what to get, as my case will support a 360mm radiator, however, up to only 35mm thickness, or so. I had a look at 360mm radiators of this thickness, however, most of them don't have FPI numbers as high as my current radiator, which could mean less performance. Does anyone know a good radiator I could use? How about going with a 360mm 30mm thick radiator? Is there one that's worth getting, and will it perform better than my 240mm 45mm thick radiator? I would be buying from Overclockers.co.uk .

 

Sorry for the long post.

 

[For Science!]

6 minutes ago, bruny06 said:

 

The discrepency between the CPU and GPU temperature is expected. This is primarily down to the fact that the GPU is a "direct-die" solution where the waterblock sits directly onto the die, whereas the CPU waterblock can only interface with the IHS which has another layer of solder before actually contacting the CPU die. I believe the Ryzen CPUs to be better than the Intel Solder, but an extra layer is an extra layer. This is why CPU temps are almost always hotter than GPUs.

 

The 360 mm radiator even at a lower FPI is likely to be better than a high fpi 240 mm radiator. High FPI only performs better at higher rpm of fans, and for a normal operation in the <1000 rpm range a lower FPI normally performs better. If you don't mind 1500+ rpm then sure, higher FPI do pull ahead when there is lots of airflow.

 

I personally think Jayztwocents to be a very bad source of comparison for temperatures, especially his earlier videos give me the impression that the sole purpose is to "wow" the audience and I believe the ambient temperatures in his environment to be very low. I wouldn't use his numbers. In 2019, the components are hotter and his recommendation fo "120 mm radiator per component" only holds up under the conditions of not minding a lot of noise, and also not being particularly low in temperatures.

[Bruno_A]

6 minutes ago, For Science! said:

The discrepency between the CPU and GPU temperature is expected. This is primarily down to the fact that the GPU is a "direct-die" solution where the waterblock sits directly onto the die, whereas the CPU waterblock can only interface with the IHS which has another layer of solder before actually contacting the CPU die. I believe the Ryzen CPUs to be better than the Intel Solder, but an extra layer is an extra layer. This is why CPU temps are almost always hotter than GPUs.

 

The 360 mm radiator even at a lower FPI is likely to be better than a high fpi 240 mm radiator. High FPI only performs better at higher rpm of fans, and for a normal operation in the <1000 rpm range a lower FPI normally performs better. If you don't mind 1500+ rpm then sure, higher FPI do pull ahead when there is lots of airflow.

 

I personally think Jayztwocents to be a very bad source of comparison for temperatures, especially his earlier videos give me the impression that the sole purpose is to "wow" the audience and I believe the ambient temperatures in his environment to be very low. I wouldn't use his numbers. In 2019, the components are hotter and his recommendation fo "120 mm radiator per component" only holds up under the conditions of not minding a lot of noise, and also not being particularly low in temperatures.

Ever since I posted about this, this is the best response I got. Thanks. I am running Noctua static pressure fans, and I am really picky about the noise, and I always have my PC running dead silent, on idle, but, when gaming I do not mind the extra noise. With that said, should I then go with a 360mm, 30mm thick radiator with as much FPI as I can find, and will I see a performance increase from a 240mm, 45mm thick radiator, with also high FPI?

[For Science!]

8 hours ago, bruny06 said:

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My gut feeling would be "yes" although I would hate to be accountable for it. With 30 mm radiators it really depends on which exact one you get. For example a 360 mm HardwareLabs GTS (30 mm) radiator outperforms a 360 mm EKWB PE (45 mm) radiator at 750 rpm fan speed @1,0 gpm flow.

 

However on the same chart you can see that EKWB SE 360 mm radiator is really bottom of the pack and I would not consider it. 

 

https://www.xtremerigs.net/2015/02/11/radiator-round-2015/10/

 

[Bruno_A]

On 11/10/2019 at 9:04 AM, For Science! said:

My gut feeling would be "yes" although I would hate to be accountable for it. With 30 mm radiators it really depends on which exact one you get. For example a 360 mm HardwareLabs GTS (30 mm) radiator outperforms a 360 mm EKWB PE (45 mm) radiator at 750 rpm fan speed @1,0 gpm flow.

 

However on the same chart you can see that EKWB SE 360 mm radiator is really bottom of the pack and I would not consider it. 

 

https://www.xtremerigs.net/2015/02/11/radiator-round-2015/10/

 

 

Thanks a lot for this. I had a read at that post and ended up purchasing a new radiator, a HardwareLabs Nemesis 360 GTS. I also got a Noctua NF-F12 Chromaxx to go with the other two I have, and a multi-port top reservoir top, to redisign my loop for the new 360mm radiator. Hopefully, that'll give me better performance.