Hello,

I have some noise problems with my GPU (Sapphire R9 290 Tri-X) inside my Fractal R4. While the CPU fan and the pre-installed case fans are quiet enough, my GPU is too loud while playing games. Idle temp of my GPU is around 46-47° C, while in CS:GO it goes up to ~75° C which is kinda annoying noise-wise.

Since I didn't install any extra case fans, I want to try that to reduice the noise level of my GPU fans. But I don't know which to buy. Looks don't matter because my case is closed and has no window. It has to be quiet yet effective. I researched a little and it seems like Front (U), Front (L), Rear, Side, Floor is a good combination for GPU cooling inside the Fractal R4. I would pay up to 20€ for one fan (for reference: NF-F12 cost 20€ here) and I already have the 2 stock-fans from the R4 (Silent Series R2).

Any advice which fans to buy? How many? 120mm or 140mm? And the positions for optimal cooling of the GPU?

Thanks in advance :)