On Jan 10, 2012, at 6:00 PM, Jim Scott wrote: > > On Jan 10, 2012, at 8:03 AM, JOHN CARMONNE wrote: > >> I read on Everymac that the processors in the white iMacs are swappable. I >> have a iMac 20" 2.0 Core Duo and would like to put in a 2.16 Core 2 Duo. Has >> any one done this? >> >> John Carmonne >> Yorba Linda CA 92886 >> From iMac Core Duo 2.0 > > Yes, I've upgraded a Core Duo processor in a white iSight iMac to a Core 2 > Duo processor. The processor fits into a socket and is thus removable. That's > the good news. The bad news is that you have to disassemble the iMac to > remove the logic board so you can get at the screws that clamp the heat sink > over the processor. It's an almost complete disassembly, so you would be well > advised to obtain an Apple service manual for the iMac in question. > > Don't forget to use fresh thermal paste -- I like Arctic Silver. > > If you're planning to do this so you can run OS X 10.7 Lion, you need to > understand that the Lion installer doesn't care a whit about what processor > you've installed. It looks for the Model Identifier in About This Mac > (iMac8,1, for example) and compares the one it finds with the list of models > on which Lion can be installed. So even if your upgraded now-Core 2 Duo iMac > otherwise runs perfectly, the Lion installer will not install directly and > will give you the old white circle with a slash screen to show its > displeasure. > > However, there is a workaround to get Lion up and running on > Lion-incompatible Intel Macs with Lion-compatible Core 2 Duo processor > upgrades. Here's a detailed explanation of how to do it I wrote last August > to explain how I did it to some clients who wanted me to upgrade their iMac > and their Mac Mini from Core Duo to Core 2 Duo. > > Here's the process. Keep in mind this was written in the very first days of > Lion, so you may already have a USB Lion thumb driver installer, and thus can > skip to Step 8:
Thank you Jim for the details in line 9 and 10 they are very important to know. I've been using the thumb drives but haven't run into this issue yet so this will save me a lot of hair pulling. My main reason for the original question was if there was any other pitfalls on the MOBO between the models other than the sockets being the same. Now would any know where I gat get a Core 2 Duo 2.16 processor besides pulling one from a machine? sj John Carmonne Yorba Linda CA 92886 USA MacPro 2.66 Quad Nehalem -- You received this message because you are a member of the iMac Group, a group for those using Apple iMacs and eMacs. The list FAQ is at http://lowendmac.com/imac/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] To leave this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/imaclist
