Help! Macbook freezing and making crackling noises.

Question

I purchased my macbook about a year ago and up until a few months ago it was running fine. All of a sudden one day after I started it up it ran very slow and started freezing. Then the speakers made some sort of crackling noise. I restarted, and eventually had to call support because it would freeze and I couldn't do anything. It turns out I never purchased the warranty but they helped me anyway. I did a disk check and the tech had me do some repairs. After that everything seemed to be fine. Until 2 months later I was use imovie and the computer just froze up and started making the noise again. Now it's back to what it was doing before. I can't get any help from tech support and I do not remember everything the tech had me do before. Is there anyone that has had a similar problem? I'd appreciate anyone's help! Thanks!!!

Answer 1

Apple start they macbook line on may 16 2006, so even if you buy your macbook at the very first day, few months ago you still covered by warranty.
Do check your warranty status from here:
http://www.apple.com/support/macbook/
Enter your hardware serial number to find out what coverage is available for your product:..............
Try to reset PRAM and SMC:
http://docs.info.apple.com/article.html?artnum=2238
http://docs.info.apple.com/article.html?artnum=303319
Try to repair permission by open application folder > utilities folder > disk utility > repair permission.
if you want to repair disk, restart using your installer disk by boot up your macbook with installer disk inside and press C.
Choose language, go to utilities at menu bar > disk utility > repair disk.
Good Luck.