When rendering heavy project (about 2000 or more light layers) in 2560x1440 PNG sequence in AECS6 (no multiple frames), PC makes some slightly hearable noise (like vertical sync noise) with 3 seconds interval. PC is cold, i mean CPU and GPU temps are pretty standart about 48-50 degrees. I am sure the project isn’t too heavy (not extreme for PC).
i7 4790K 4GHz, Gigabyte GTX970, 16GB ram.
When rending less heavy projects - everything is fine. Maybe some know an easy answer.