Another thing Alan I forgot to mention earlier. I would not really trust the 2009 Hard Drive so keep regular bootable backups. Also I suggest you don't Shutdown the iMac all the time like you do, just let it sleep. You can put it to sleep manually when ever you want.
When you shutdown and startup your computer, the Hard Drive and other components get more wear and tear, and use more energy. I recommend all Mac users to sleep their computers unless they won't be used for more than a few days, and all Mac users should shutdown their computers at least once a month to clean out all the 'junk' that collects inside the components. Shutting down a computer wipes away the computer's RAM, which might have some corrupt/junk data left in it from various things the computer does. It also lets the computer's components cool down. The best advantage of 'sleeping' is that the computer (a) goes to sleep almost immediately, allowing quick transport of a laptop, and no vigilance after 'clicking shutdown'... on a desktop, and (b) wakes up almost immediately, allowing you to get back to work right away. I rarely shut down my computers. Cheers, Ronni Sent from Ronni's iPad4 > On 25 Nov 2014, at 1:18 pm, Ronda Brown <ro...@mac.com> wrote: > > Hi Alan, > > Yes, I wanted your to Reset the PRAM and then follow my original instructions > of reinstalling Mavericks. > I thought my intentions were always clear from the start, and my instructions > were clear - My intentions were to get your 2009 iMac working correctly again > ;-)) > > Don't connect the external drives until you are absolutely sure everything is > working as it should. > If it is, do a bootable backup, so you then have a current backup to fall > back on if the external drives cause problems again. > > Cheers, > Ronni > > Sent from Ronni's iPad4 > > >> On 25 Nov 2014, at 11:53 am, Alan Smith <sma...@iinet.net.au> wrote: >> >> Hi Ronni >> >> Reset PRAM. Not sure of your intention. Is is to do with fixing the >> Startup Chime? Or general housekeeping following Disk Warrior repairs? >> >> Later I re-installed OS X Mavericks (from OS X Utilities). Thirty minutes >> download (via WiFi) plus 42 minutes installation. >> >> I didn’t check functions after PRAM reset. But some functions left >> problematic after Disk Warrior are now OK (checked after Mavericks >> re-installed). >> (a) Now no alert message re iTunes invalid certificate (was “iTunes can’t >> verify the identity of the server “init.itunes.apple.com”). Now plays local >> music and connects to iTunes Store without problems >> (b) Sudoku app loads and operates normally - previously got message that >> the app was damaged and to download a new copy. >> (c) Dropbox seems to be OK, but may not have beeen “inactive” as I thought >> yesterday. >> (d) Startup Chime: this has worked every time today. The “little squeak” >> noted still occurs sometimes at the very start of the chime. I will do >> further monitoring to see if there are Chime differences depending on the >> shut-down mode. Possibly had no start chime when I turned power off at the >> rear switch. >> >> So PRAM reset plus Mavericks re-install have raised performance. I have not >> connected the external hard drives (videos) which will put iTunes (and the >> iMac) to a real test. >> >> Cheers >> Alan >> >> >>> On 24 Nov 2014, at 10:06 pm, Ronda Brown <ro...@mac.com> wrote: >>> >>> Reset your computer's PRAM >>> >>> Shut down your Mac. >>> Locate the following keys on the keyboard: Option, Command (⌘), P, and R. >>> You will need to hold these keys down simultaneously in step 4. >>> Turn on your Mac. >>> Immediately press and hold the Option-Command-P-R keys. You must press this >>> key combination before the gray screen appears. >>> Continue holding the keys down until your Mac restarts, and you hear the >>> startup sound for the second time. >>> >>> Release the keys. >>> Resetting PRAM may change some system settings and preferences. Use System >>> Preferences to restore your settings. >>> >>> Cheers, >>> Ronni >>> >>> Sent from Ronni's iPad4 >>> >>> >>>> On 24 Nov 2014, at 8:24 pm, Alan Smith <sma...@iinet.net.au> wrote: >>>> >>>> Hi Ronni >>>> >>>> Absence of the startup chime is intermittent. Chime worked OK when I >>>> restarted Mac to confirm I still had access to the Recovery Disk and then >>>> again to check WiFi signal strength. System sound settings are all >>>> normal. Perhaps a reinstalled OS X will clear it up. >>>> >>>> Cheers >>>> Alan >>>> >>>> >>>>> On 24 Nov 2014, at 7:44 pm, Ronda Brown <ro...@mac.com> wrote: >>>>> >>>>> Hi Alan, >>>>>> On 24 Nov 2014, at 4:35 pm, Alan Smith <sma...@iinet.net.au> wrote: >>>>>> >>>>>> iMac subsequently started up OK. Some “irregularities” noted for future >>>>>> investigation, including no startup Chime; >>>>> >>>>> Check your System Sound is not 'Muted' or turned down too low >>>>> System Preferences > Sound - Output >>>>> Output volume: Check that 'Mute' is not ticked. >>>>> >>>>> Cheers, >>>>> Ronni > -- 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>
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