I had the same model MDD as you and one of my CPUs bit the dust a couple of years ago. I decided a speed update would help too so I bought a dual 1.42GHz CPU off ebay and used that which works fine. Then a friends MDD started playing up so I sold him my logicboard and bought the matching FW800 logicboard that matched the dual 1.42GHz CPU. You could get either a dual 1.25GHz CPU ( FW 400 ) which does boot OS9 or a dual 1.42GHz CPU ( FW 800 ) which does not boot OS9. Note the dual 1.25GHz CPU ( FW 800 ) has a 167MHz bus but also does not boot OS9. All three of these will work with your logicboard. You can get the dual 1.25GHz CPU with a 133MHz bus to work ( or so I am told ) as well but I'd stick to those with the 167MHz bus.
Stewie > Date: Sun, 20 Jun 2010 15:35:00 -0700 > Subject: Re: Logic Board on G4 MDD dual 1GHz, 167MHz, FW400 > From: [email protected] > To: [email protected] > > I do not need to boot 9 because I no longer have a use for that OS. > As a matter of fact, I don't use the FW either so does it matter if > it's FW400 or FW800 as long as it's dual 1GHz and 167MHz buss speed? > > > On Jun 20, 3:18 pm, John Carmonne <[email protected]> wrote: > > On Jun 20, 2010, at 11:18 AM, Jancy wrote: > > > > > My logic board bit the dust and I need a replacement. I have had a > > > hard time trying to find an exact replacement board and I believe that > > > is because of the firmware (?)...it could boot from OS9 which was pre- > > > installed from Apple along with 10.2...(it was purchased in Dec. of > > > 2002). I don't use the FW400 and I no longer use OS9. What logic > > > boards could I use to replace my original if that is possible? I > > > would really appreciate any info you could give me on this. Thanks > > > > If you need to boot 9 you need a board with FW 400. FW 800 will not boot 9 > > AFAIK. The MDDs need a special ROM file in the system folder to boot 9 > > but FW 800 model will not boot it even with the ROM. > > > > John Carmonne > > Yorba Linda USA > > Sent from my MBP > > -- > You received this message because you are a member of G-Group, a group for > those using G3, G4, and G5 desktop Macs - with a particular focus on Power > Macs. > The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette > guide is at http://www.lowendmac.com/lists/netiquette.shtml > To post to this group, send email to [email protected] > For more options, visit this group at http://groups.google.com/group/g3-5-list _________________________________________________________________ Need a new place to live? Find it on Domain.com.au http://clk.atdmt.com/NMN/go/157631292/direct/01/ -- You received this message because you are a member of G-Group, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/g3-5-list
