Cooling capacity minimum/recomendet/not sufficient

[Glasya_25]

Hi all!

i have some minor "issues" with my watercooled system and i thought maybe someone in a forum like this could help me out further.
the system is running fine and all but i think the temps are a bit to high for a custom watercooled system. first of all here is the spec list:

ryzen 1800x @3.8GHz*
crosshair VI hero*
32BG Gskill @3400MHz
2x GTX1080ti Founders edition (both watercooled)
corsair HX1000i
2x EK 360 PE radiator
D5 pump @ 3900 RPM
6x ek vardar fans @ 1200 RPM

*cooled by mainboard monoblock that cools CPU and VRM

after some gametime (2-4h) i noticed that both GPU's where around 62°C and also the CPU is around that temp.
that worries me a bit when you hear people like jayz two cents saying that this is way to high for a watercooled card...

what are you guys thinking? im using mayhems pastel white as a fluid. the fluid is fairly new so there should not be any build up. also recently i heard that glycol based coolants have a lower cooling capacity than distilled water. is that true?
do i need more surface area = more/thicker radiator? or should i switch back to distilled and dyed water?

if you need any more information just let me know (pictures, HWinfo screenshot, etc)

greetings and thanks a lot in advance

 

[Glasya_25]

thanks for your answer i was thinking about that too, getting something to monitor the fluid temp. i'll see what i can get. can you recommend a specific product?

 

[Glasya_25]

allright. i ordered one now. i'll let you know how the temps are once i have it installed.
just to make sure, the placement of the sensor doesnt really matter since the fluid strives for thermal equilibrium. right?

 

[Glasya_25]

do you mean flowratio like L/h? the radiators get warm to the touch so the flow should not be too bad.
also the air that fans are exhausting through the top rad is warm too, not to warm tho. i removed the top glass panel now to see if that helps

i could ramp up the pump speed but at 100% its a bit noisy

 

[Glasya_25]

okay, i have an EKWB D5 PWM with a plexi top. it is mounted to the case via the bracket EK sells. the D5 itself has vibration dampening but the bracket does not. if that makes sense