I have three fans at the front of my case set as intakes, one rear fan as an exhaust, and a top-mounted AIO radiator exhausting air through the top. The radiator has three fans on each side in a push-pull arrangement. Does this airflow setup look good, or is there an obvious improvement I should make? Gaming and normal use are fine, but the CPU reaches about 89°C when unpacking games and running at 100% usage. I have an overclocking setting enabled in the BIOS at level 3 with a 90°C target, so I suspect that may be contributing to the temperature.
2 Answers
Your setup is already reasonable, especially if temperatures and noise are fine during normal use. A top-mounted radiator as exhaust and the rear fan exhausting air are both common choices. There is no need to change anything just for the sake of changing it. The brief 89°C peak while unpacking games is probably more related to the CPU boost or overclocking settings than to a major airflow problem.
If possible, aim for slightly more intake than exhaust to create gentle positive pressure, which helps reduce dust entering through unfiltered gaps. However, simply counting fans is not enough because radiator fans and filters can restrict airflow. I would keep the rear fan as an exhaust rather than turning it into an intake: front-to-back and bottom-to-top airflow is usually cleaner, and the rear fan helps remove warm air around the CPU socket. If you want to lower the CPU temperature, check the BIOS overclock or boost settings and adjust the fan curve before changing the case layout.
I was considering making the rear fan an intake, but keeping it as an exhaust seems better for directing the airflow toward the top radiator and out of the case.
That makes sense. I mainly wanted to check whether there was an obvious airflow mistake, since the high temperature only happens during heavy decompression workloads.