Takže řeč je o větrácích na grafice? Většinou jde regulace nastavit v ovladačích grafiky.

Start NVIDIA System Monitor application by clicking "Start | All Programs | NVIDIA Corporation | NVIDIA System Monitor." A System Monitor icon appears on the right of the Windows taskbar; right-click this icon and choose "Open." The NVIDIA System Monitor window opens and displays information about your NVIDIA graphics card.

Click "Device settings" in the "Select a Task" pane, and then click the "Create Profiles" tab.

Click the "GPU" icon, and then click the "Cooling" slider control and slide it to a value between zero and 100 percent. The fan slows down or speeds up automatically, depending on your setting.