One question about basic watercooling

[Fritz-Senfei]

In the last time I thave been thinking about issues with watercooling. When you have a loop and your CPU is 70°C hot, the produced heat get transported away by the floating water. But when you turn your PC off, there is still a bit of heat left that can't geat away by the water because its not moving anymore. So the CPU should get really hot when turning off the PC (I think).

 

There is no such problem with aircooling because the heatpipes are still working.

 

I'm not sure about that, what do you think?

[iamdarkyoshi]

The CPU does not produce any more heat once the PC is turned off, so everything just slowly cools down

[manikyath]

the moment your pump cuts out the cpu has already stopped producing any kind of noteworthy heat, so it'll be 100% fine.

 

also, if you're worried about cooling down your cpu faster, some motherboards (like asus sabertooth) allow you to keep fans (and the pump) running for a few minutes after the system has turned off.

[Kc7vwc]

Id think it was actually better with the entire system cooling slowly. Then you don't get the sudden change in temps and thus the material isn't flexing as much as it rapidly cools.

Just my two cents worth.

[0ld_Chicken]

I pretty much always let my PC idle for a couple minutes before shutting down with fans on "max" (1100rpm) to help bring my liquid temps back down near ambient.  

 

The water will still transport a bit of heat though, even if it isn't flowing