Best silent coolers
Best silent coolers
You're searching for air coolers that can match or surpass liquid cooling options for quiet computing. Right now you're using a 5330k with a h115 and sli 980ti. Before making any decisions, I just got this when it was released and before the 1070 came out.
Checked the Noctua NH-D15 and D15S models. I already own the D15S and am really satisfied. These two coolers are super powerful, so you'll need a case with sufficient depth to fit them properly. No Nvidia offers dual GPUs like that; the only similar one is the R9 295x2, which is no longer available and buying one would cost over $1000. Have you adjusted the GPU fan curve? It might improve performance if the fans run continuously. Increased airflow into your case could be beneficial.
Checked the Noctua NH-D15 and D15S models. I already own the D15S and am really satisfied. These two coolers are super powerful, so you'll need a case with sufficient depth to fit them properly. No Nvidia offers dual GPUs like that; the only similar one is the R9 295x2, which is no longer available and buying one would cost over $1000. Have you adjusted the GPU fan curve? It might improve airflow if your fans are running continuously.