Silencio 550 / Antec Kuhler 920 H2O

[ontherun]

Heya.

I used to have In Win, Dragon Rider, big tower case. With that case my liquid temperature was stabile at 30-32c.

Now in my new case(Silencio 550), the liquid temperature is very high compared to the old tower. What causes this? Bad airflow? ventilation?