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Update 22nd December 2020 : Taming RTX 3090 FE part II, upgrade!
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(It's just a sum up, please check link above to have more details)
Based on my last experiments, I decided to try again 92mm rear AIO.
Thus I tried Asetek 645 LT...I powered it on outside the case to check & shake it..
Shaking proved to HUGE benefit as I heard air bubbles moving from cpu block to built-in reservoir (included on radiator)...at my BIG (& pleasant) surprise 645LT pump noise (I was reporting previously) is no longer a issue.
Here is final result :
Issue with 645LT is that side bracket rivets (back side) are bumping into radiator, by default (you can see on previous photos scratches of paint on 645LT radiator). Side panel is not fitting.
Thus I decided to file all 4 rivets back side.
With this small mod, I was able to put back side bracket with no issue!
Best news with this mod is thermal & noise results :
- RTX 3090 FE is sitting 95% of time at around 1300rpm @67°C in benchmark passage (chap 1 hive buster Gears 5)
- R7 3800X OC 4.3Ghz & RAM @3800MTS : CPU is clearly in the sixties °C!
On top, here is updated pure CPU cooling benchmark :
- Overclocked R7 3800X 4.3Ghz @1.3125v RAM @ 3800MTS (Asetek 645LT Intake, Side Exhaust) :
- IBT 2.54 Very High : 915.72sec
- Max temperature : 78.9°C
- Max CPU Package Power : 120.03W
- Overclocked R7 3800X 4.3Ghz @1.3125v RAM @ 3800MTS (Noctua C14S Push/Pull Intake) :
- IBT 2.54 Very High : 915.80sec
- Cinebench R20 (multi) : 5120
- Max temperature : 73.9°C
- Max CPU Package Power : 119.23W
- Overclocked R7 3800X 4.3Ghz @1.3125v RAM @ 3800MTS (customed 92mm watercooling, push/pull) :
- IBT 2.54 Very High : 917.12sec
- Max temperature : 79.5°C
- Max CPU Package Power : 118.33W
Asetek 645LT is not beating "Intake" C14S...obviously...but it's only 5°C hotter vs overclocked R7 3800X! (I did run 2 times IBT VH profil twice to make it sure)
As annoying pump noise is today removed (thanks to gentle shaking while powered on), I have to declare this setup as best gaming setup for Cerberus case, providing best GPU cooling (almost as if it was on open bench table with RTX 3090FE & strong CPU cooling either under gaming load or pure processing!
PS : Screenshot of IBT 2.54 VH test :