my mac pro will not boot up?
my mac pro will not boot up?
my mac pro will not boot up?
That is a lot to go on. Here are the general tips.
Knowing more about which model Mac Pro, what hardware, when...
Troubleshooting: My computer won't turn on
https://support.apple.com/kb/TS1367
Symptoms
If your Macintosh computer won't turn on, here's how to troubleshoot it. Please keep in mind that although your computer may display similar symptoms that prevent it from showing video, this article discusses what to do if the computer won't turn on, meaning that when you press the power button:
If your computer doesn't display any video, it may display one or more of these similar symptoms when you press the power button:
If any of these conditions occurs, see Troubleshooting: My computer has no video instead.
Resolution
If your computer won't turn on, try each of these steps:
reset SMC For "Mac wont' turn on or boot" and related
https://support.apple.com/kb/TS1367
General purpose Mac troubleshooting guide: Isolating issues in Mac OS X
Creating a temporary user to isolate user-specific problems: Isolating an issue by using another user account
Identifying resource hogs and other tips: Using Activity Monitor to read System Memory and determine how much RAM is being used
Starting the computer in "safe mode": Mac OS X: What is Safe Boot, Safe Mode?
To identify potential hardware problems: Apple Hardware Test
General Mac maintenance: Tips to keep your Mac in top form
my mac pro will not boot up?