On 25 Mar 2014, at 08:02 , Jean-Christophe Helary <jean.christophe.hel...@gmail.com> wrote:
> I just bought a number of 1333mhz 8gb There’s your problem right there. IIRC the 27” late 2009 iMac had four DIMM slots, each of which was officially rated at taking 4 GB sticks. Unofficially _most_ 8 GB sticks would work, but some won’t. > memory chips that I intended to use on my late 2009 27" iMac and my early > 2011 MBP. > > My understanding (which seems to have been mistaken) is that 1333mhz chips > would work nicely even when 1066mhz chips were expected, but they would only > run at 1066mhz... > > That does not seem to be the case. I got awful beeps when I tried to reboot > and whatever configuration I tried I could not get to have the chips > recognized. It should be that the sticks would work, but there’s more than just the speed. What latency are they, and what voltage? > > Also, the chips themselves seem to work very nicely on the MBP that does > require 1333mhz. So it is not the chips that are a problem. Was I totally > mistaken with my original assumption ? > > Jean-Christophe Helary > _______________________________________________ > MacOSX-talk mailing list > MacOSX-talk@omnigroup.com > http://www.omnigroup.com/mailman/listinfo/macosx-talk _______________________________________________ MacOSX-talk mailing list MacOSX-talk@omnigroup.com http://www.omnigroup.com/mailman/listinfo/macosx-talk
