I just finished building my PC this weekend and I'm using dual 360mm AIO radiator coolers for both the CPU and GPU. I realized I forgot to switch the fans on the GPU radiator to intake. The GPU radiator is in the front and the CPU radiator is mounted on top. My setup includes two bottom fans as intake and one rear fan for exhaust. The case has good ventilation, so I'm wondering if I should bother flipping the GPU fans inward. My initial temperature readings during gaming sessions are 65°C for the CPU and 50°C for the GPU, which seems fine to me. Do I need to switch the GPU fans to intake for better airflow, or is the current configuration sufficient?
5 Answers
Pressure isn't just about having cool air coming in. With a lot of exhaust fans, you're creating negative pressure, which can draw in dust through any gaps in your case. If you flip the GPU fans to intake, you'd be pushing air out through those openings instead, which might keep your system cleaner in the long run.
If your temps are okay, it might not be that big of a deal. However, having too many exhaust fans could create a situation where dust gets pulled in from cracks instead of through your filters. But honestly, if you keep an eye on dust buildup, flipping the fans could help you out.
I hadn't thought about sucking dust from case gaps instead of filters. Sounds like flipping the GPU fans might be the way to go. Thanks for the insight!
In my opinion, having more intakes than exhausts is better. It helps to push air out from any holes in the case rather than pulling air—and dust—in. If you’re concerned about dust, switching the GPU fans to intake might be a smart move.
I think your temps are fine, but I would personally switch the front GPU AIO to intake. Having more intake fans can create positive pressure, which helps to minimize dust entry since filtered air is pushed in.
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