PC NERDS! I have an old-ish desktop PC. MSI H61M-E23 Mobo, i7-2600 CPU, 8GB RAM, GTX 960 GPU. It's mostly just Steam and some VMs that it's used for. I make little incremental improvements over time, and this machine has suited me fine for quite a while. It's a bit noisy though. I suspect the CPU fan is the main culprit (likely?). Would like to make it quieter. Low cost suggestions?