On Sat, Jul 21, 2007 at 05:24:17AM CDT, Ronald Steinke <ronsteinke at mac.com> wrote: > On 20 Jul, 2007, at 3:18 PM, Stroller wrote: >> >> I was surprised to read the Apple Store recommending 3gig, but it appears >> they are correct: > > MacTracker also agrees with this. Max RAM for the core duo MBP - 3Gb (4 Gb > {2x2Gb} can be installed but only 3Gb will be recognized). No explanation > given for the unrecognized 1Gb. Blame Intel. It's a limitation of the 945PM chipset. <http://www.everymac.com/systems/apple/macbook_pro/faq/macbook-pro-core-2-duo-3-gb-memory-limitation-details.html> -- Eugene http://www.coxar.pwp.blueyonder.co.uk/