On Jun 5, 2009, at 4:01 PM, Dana Collins wrote:
> Thanks for the chime-in and the information. SO, possibly, the 256Mb > stick that I have (which is installed in slot 2, the more accessible > slot) is a high density stick, forcing the unit to read only 1/2 of > the actual RAM? Yes, "high density" RAM will be seen as one-half of its rated capacity. It uses more address lines than the PB supplies, or it uses them in a different way than the PB intended (this was seen on the much earlier "First G3 PB", the 3500/Kanga). There is no workaround, and Apple didn't get around to fixing the "high capacity" problem until the Pismo. The "high capacity" problem is different than the "high density" problem, and that, in turn, is different than the "high profile" problem. Essentially, in the Pismo, all these problems except the "high density" problem were fixed by a new LSI chip, and a new processor card design. The "high density" problem wasn't fixed until later Macs, which is why one must apply the general rule, "for all first and second generation 'New World' Macs, including PBs, buy only 'low density' RAM". --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to Low End Mac's G-Books list, a group for those using G3 iBooks and PowerBooks (we run a separate list for G4 'Books). The list FAQ is at http://lowendmac.com/lists/g-books.html and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/g-books?hl=en Low End Mac RSS feed at feed://lowendmac.com/feed.xml -~----------~----~----~----~------~----~------~--~---
