I turned on my pc this morning and it sounded fine. I put my pc in sleep mode when i went to class and when I got home and woke up my pc it was making a strange sound. I thought it was dust because I haven't cleaned inside my pc in awhile. But after I cleaned it and turned it on again it booted up with the noise. Is my case fan dying? I don't know how to remove the front part of my case to see the fan itself and from I read the lubrication is gone and the metal is grinding. If my case fan is dying can I just disable it and use my pc as is while I wait for newegg to send me a new one for the rear of the case?