There are several different processor board layouts for that machine. This does not count the single and dual processor cards. I have 2 totally different 1.25 GHz cards here. The way that I did it was searched on google for information on it. You are going to need to be really really good with a soldering iron to do this, likely best to have 2 fine tip soldering irons to pull it off. You will also want some Arctic Silver 5 thermal compound. I stepped the multiplier up for my chips and stepped the voltage up a notch to stabalize it. If your dual 1.25 GHz system has the aluminum heatsink, you are going to want to find the copper heatsink as well. The aluminum one just wont cut it when overclocked.
On Feb 2, 2010, at 4:25 PM, John Carmonne wrote: > Thanks now can you tell me how to over clock it when I get one? This will be > my project for the month> > On Feb 2, 2010, at 11:35 AM, Jason Brown wrote: > >> Sigh, please forgive me, had a dyslexic moment. 7455/7457 series. lol >> >> On Feb 2, 2010, at 1:30 PM, Jason Brown wrote: >> >>> Yes, it can. It is the Motherboard that limits the booting, particularly >>> the firmware and drivers in the OS. The processors are still just 7544/7457 >>> series processors. I have seen people do this before. Mine, I just took the >>> dual 1.25 board and overclocked it to dual 1.5. :P >>> >>> On Feb 2, 2010, at 12:46 PM, Dan Knight, LowEndMac.com wrote: >>> >>>> I have a question that I hope someone here can answer. Can a 1.42 GHz >>>> dual CPU module be transplanted to a FireWire 400 MDD motherboard >>>> while still allowing booting into Mac OS 9? >>>> >>>> Thanks! >>>> >>>> Dan Knight, LowEndMac.com >>>> >>>> On Feb 2, 12:23 pm, "Mac User #330250" <[email protected]> wrote: >>>>> The Dual-1 GHz MDD has a bus speed of 167 MHz and can take any MDD or >>>>> FW800 >>>>> CPU that is designed for the same bus speed. >>>> <snip> >>>>> 167 MHz Bus speed: >>>>> MDD - 1.0 GHz Dual (1 MB cache on both processors) >>>>> MDD - 1.25 GHz Dual (2 MB cache on both processors) >>>>> FW800 - 1.25 GHz Dual (1 MB cache on both processors) >>>>> FW800 - 1.42 GHz Dual (2 MB cache on both processor) >>>>> MDD - 1.25 GHz single (1 MB cache) "education only" 2003 model >>>> >>>> -- >>>> 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 >>> >>> -- >>> 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 >> >> -- >> 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 > > John Carmonne > Yorba Linda USA > > > > -- > 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 -- 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
