Posted 24 May 2006 - 09:49 AM
Case fans usually run at a constant RPM and will stay on as long as the computer is on, this is probably the one that you hear. The CPU fan rpm is usually regulated by temperature, and will increase its rpm as the temperature goes up, and vice versa.
If the fan bothers you too much you could look into a fan speed control to reduce the case fan's rpm, you would need to monitor the temperature to make sure that your not overheating in the case. There usually is only one thermal sensor which reads the temperature of the CPU, and when the circulation inside the case decreases it can have an impact of the CPU temperature, so it won't be difficult to see a difference.
I use Everest home edition to monitor my temps, and I have to wonder where and how they figure the temperatures of the other devices that it lists, like the HDD, motherboard, and the AUX which has the icon of a monitor.
Family and loved ones will always be a priority in my daily life. You never know when one will leave you.