I have screen saver to blank and power and sleep mode settings on. When I move my mouse or any key to get out of mode, sounds like fan motor keeps running and can't get out of mode. Have to shut computer off. I've taken screen saver and sleep modes off and all seems fine now. I just shut my monitor off. Is there a setting I need to change for the sleep/power settings so this doesn't happen or possibly, do I need a new fan motor? Thank you.

Computers & Internet - Dell - Inspiron - Inspiron 530s Desktop Computer