Hi all, I have a 2007 white macbook with ios 10.6.8. I know its ancient but I'd like to eek a year or two more out of it if possible. I replaced the hard drive in 2010 and the cd drive hasn't worked in years but other than that I haven't had any problems til recently. A couple months ago it started turning off randomly. There doesn't seem to be any pattern to when this happens. Sometimes its plugged into the powercord, sometimes not. Sometimes it will be on for hours before it happens, sometimes it will happen 10 minutes after I turn it on. For a while I couldn't watch video without it turning off a few minutes in. I reset the scm, which didn't seem to make a difference. Then I reset the PRAM, which did seem to help for a little while. For a few weeks after that it only turned off once or twice and I could even watch netflix. But now its back to turning off almost everyday and watching video almost always makes it turn off. I've never had a problem turning it back on after it shuts itself down but occasionally it will shut off again in the first few minutes its on and sometimes this happens 4 to 5 times a day. Also, it has been making a lot of whirring noises lately. My brother suggested I might need a new fan but I'm not sure if that is related at all. I need my computer for work but this is making it very difficult to get anything done. Any advise would be greatly appreciated. Thank you.