I would not worry too much about PRAM's. I have no Apple evidence of the below message, but I can certainly believe it. Though I suppose that Apple might have updated the key sequence some to clear out other nasty issues I don't expect that to be the case.
Begin Qote from Tidbits.com discussion in 2009 On Subject of Grey screen and no boot of Macintosh computers (And just FYI, the days of resetting PRAM / NVRAM doing anything useful pretty much died with OS9. These days, about the only thing that lives there is display resolution settings, so zapping the PRAM may be useful for troubleshooting video issues, but it is unlikely to help with anything else. Harmless to try, but meaningless if nothing improves, because nothing really uses it anymore.) -- Chris Devers End Quote On 02/12/2010, Marlaina Lieberg <1guide...@gmail.com> wrote: > Les, > > Imagine trying to do all this on an Air! Or even an MBP! I haven't done it > yet. > > Marlaina > On Dec 1, 2010, at 7:00 PM, Les Kriegler wrote: > > Hi Ann, > > A couple of comments/questions here. First, this is a very difficult > keystroke to execute. You're talking about typing five keystrokes at once, > I cannot do this. I can hit Command-Option P with my right hand, hit the > button to power on the machine with my left hand, and then while holding > down the 3 keys, race over before hearing the music and hit the R key. I > don't hear 4 chimes, I hear a buzzing sound 4 times, then the normal startup > sound again. Am I executing the reset procedure properly? How does one > know that it actually worked? Thanks. > > Les > > -- > You received this message because you are subscribed to the Google Groups > "MacVisionaries" group. > To post to this group, send email to macvisionar...@googlegroups.com. > To unsubscribe from this group, send email to > macvisionaries+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/macvisionaries?hl=en. > > > -- > You received this message because you are subscribed to the Google Groups > "MacVisionaries" group. > To post to this group, send email to macvisionar...@googlegroups.com. > To unsubscribe from this group, send email to > macvisionaries+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/macvisionaries?hl=en. > > -- You received this message because you are subscribed to the Google Groups "MacVisionaries" group. To post to this group, send email to macvisionar...@googlegroups.com. To unsubscribe from this group, send email to macvisionaries+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/macvisionaries?hl=en.