My MAC keeps crashing about 30 seconds after I turn it on. It works fine in safe boot mode?

Question

But there is no sound while in safe boot mode. I have completely wiped the drive clean and reinstalled every thing. The system test tell me there is nothing wrong. Don't know what other info is needed.
And I know nothing about computers. I had someone tell me to run it in the safe boot mode until I could find out what is wrong to fix it. Thanks for the help.
Any one can e-mail me for info or to tell me what is wrong. My e-mail is [e-mail]

It was crashing before I wiped everything clean. I started it in the safe boot mode to do this.

Answer 1

The only part of your question info I don't understand is "...wiped the drive clean and reinstalled every thing.." If it crashes 30 seconds after startup, how did you install anything? I think you had no problem after erasing the drive and reinstalling the Mac OS. The problem returned after you reinstalled one of the other applications. You had a chance to find out which one if you had restarted after each install but maybe you just reinstalled one after the other as quickly as possible and then some time later restarted and --- crash.

Start up in Safe Mode. Open System Preferences > Accounts > Login Items. What is in that list? Maybe one of those is causing the crash. Uncheck one at a time and restart. Then wait a couple of minutes to see if it crashes. If it doesn't crash, there's the bad guy. Leave out that bad software and Bob's your uncle.