Answer to: Mac Pro Late 2013: Anything that can be done about coil whine?This solved my problem, only took less than 1 minute The first thing you should try is reset the SMC . All you have to do is unplug the computer from the power source ( back of the computer power cord) wait 15 to 25 seconds just in case you count to fast.Then Plug it back in and RESTART the computer the fan should reset back to normal. If this trick does not work then the fan is probably dirty and needs to be cleaned or it may need to be replaced. ( Always Try the simple things first ) like going to ifixit.com and ask a question.
Answer to: locked hard drive can't reinstall Lion OSXSame problem except that I am a 25 year Macintosh consultant and this has me stumped, I can use Data Rescue to see and recover all the files I need. The two drives that have the lock on, are internal macpro drives this happened four days ago. I did not do it I am fully aware of all of the ways to change permissions on the drives They all have a custom permission and when I try to change it to specify a user or admin as read and write they all go back to custom, and Yes I unlocked the get info before I tried. My Data Rescue Program says that the data was changed 2/5/40 "I say what the" This is the message that I get after running data rescue @@@@HFS+ Private Data 2/5/40 The previous date was 2/10 2015 before the message above I have also used the terminal program to try and access and unlock the drives I do not have the code at hand at this moment Just another friggin Apple problem, that probably has no solution. sometimes I wish they would fire all of the nerds that are now in place and hire back the old ones...