Hi Pat, To possibly help those who do have the knowledge to determine what could be wrong, can you please advise the following:
- Have you tried restarting your Mac on the install DVD, and if so does the problem persists? - Have you run Disk Utility and do the usual: Repair Disk, Repair Disk Permissions? - Any sign of the hard drive starting to fail, eg the question mark on starting? - Booted the Mac on your clone drive, if that's what you do as back-up? As you say it may be an electrical component like a capacitor which is failing, but best check other possibilities before taking the Mac to the doctor. Your answers may help our in-house experts give you an indication of what may be wrong. Sorry I cannot help, my knowledge is quite basic. Good luck & Happy New Year to all Philippe 2011/12/30 Pat <clamsh...@iinet.net.au> > > My intel Mac Pro is starting to have a problem, which I fear is a serious > one. It is 3 years and 9 months old, so out of warranty, out of AppleCare. > > About a week ago, about 10 minutes after starting up in the morning, it > suddenly crashed and then restarted itself immediately. I thought it was > just a glitch in our electricity supply - that happens quite a lot here. The > next day, it happened again and several times since. By now I was thinking > it was the Mac's problem. This morning, I thought it wasn't going to start > at all - it made about a dozen attempts before it finally settled down. > > I have always turned it off at night, mainly because of the electricity > glitches, but I will leave it on tonight. > > I'm just guessing, but that kind of behaviour seems like it might be some > connection that warms up on starting, but is beginning to fail. I bought > this machine from Macworx, so I will probably approach them about a repair, > and am fully backed up. > > I would just like to get an idea about what might be happening, and if it > might or might not be repairable - I will appreciate your thoughts about it. > > A safe and happy New Year to you all! > > Pat > -- The WA Macintosh User Group Mailing List -- > Archives - <http://www.wamug.org.au/mailinglist/archives.shtml> > Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml> > Settings & Unsubscribe - > <http://lists.wamug.org.au/listinfo/wamug.org.au-wamug> -- J Philippe Chaperon Perth, Australie Occidentale -- The WA Macintosh User Group Mailing List -- Archives - <http://www.wamug.org.au/mailinglist/archives.shtml> Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml> Settings & Unsubscribe - <http://lists.wamug.org.au/listinfo/wamug.org.au-wamug>