What is this Apple part number: 661-4999?

Question

I was wondering if this can be used to remove the 09 logic board and install the 2010 logic board which is the same, except for the efi firmware to enable westmere on the 09..
Thanks and have a great day!

Answer 1

I wouldn't be so sure about believing that, because that engineer could very well lose his/her job for telling you something like that. Steve Jobs missed his calling as an intelligence officer during the cold war. That, or he's off his meds again. Actually, if some of the stories about the guy are true, I wouldn't be surprised if he's actually a mild paranoid schizophrenic, or at least a bipolar who gets a little paranoid when they have a long manic phase. But I digress.
And contrary to some people's egos, I don't make it a habit of memorizing the various things people here have done with their systems. I pointed out the heatsink thing because a long shaft 3mm hex screwdriver isn't exactly the sort of thing people tend to have in their home toolkits. If you do, then go buy yourself a cookie. When I made that post, you were just another random person on these forums, and 5 minutes after I'm done posting this, odds are I will have forgotten who you are again due to making absolutely no effort to retain that information.
And Apple has been known to completely redesign things because of some need. Look at the new Mac Mini for example. And even the older Mac Minis looked completely different inside over the years. iMac logic boards have changed quite a bit between 2007 and 2009. MacBook and MacBook Pro boards are the same way. Plus, you've seen the processor trays on the 09 models. Tell me, where exactly are they going to stick another 1-2 memory banks? There isn't enough real estate on that board for any more RAM. Maybe if they took the dual CPU version, just moved both CPUs to one side, but then you'd create a thermal buildup in one area, not to mention screw with the weight distribution of the tray when removing it.
Someone is either giving you bad info or risking their job. Neither of which really does a lot to vouch for the person's credibility. I wouldn't go making any plans until I've actually seen the boards for myself.