if I recall correctly, this has been done on the first revision iBook. In principle, if the higher density RAM chips are pin-compatible, this can be done, assuming that the memory controller can support it. if I had to to guess, there are 2 RAM banks (I am on thin ice here....), and if one of them can take 512 MB, then you could remove the 128 MEG bank and replace with a set for 256/512. I guess the first step is to see if Apple has the tech notes on the icebook to see if it gives details on memory controller and structure.
Mad Dog On May 31, 2010, at 11:16 AM, David Murray wrote: > I have a thought about upgrading the RAM in a G3 beyond the usual > maximum of 640 MB. I am pretty good with soldering, I could remove > the onboard memory chips and replace them with higher capacity ones...... -- You received this message because you are a member of G-Books, 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 leave this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/g-books Support for older Macs: http://lowendmac.com/services/
