"To quote them, ""Just as the disclaimer for Jackass: The Movie says: This stunt was performed by a professional, so neither you nor your dumb buddies should try anything shown in this how-to.""
That being said, I could be in and out with a new processor in about an hour an hour and fifteen minutes. They must not have had access to the iFixit guide ;-) The hardest thing here is getting it open and replacing the four screws back in that hold the screen in place. What they didn't say was if it worked. I replaced the logic board on a 17"" 1.9 GHz G5 an hour ago and it's the same basic machine. The only step I didn't do was replace the processor. I did have to do it twice because I forgot the thermal paste the first time. But I am a professional and I've been into these machines multiple times.
UPDATE
Here's my screen shot on the new 2.16 GHz Core 2 Duo processor upgrade"
"Make sure that you get enough thermal paste! I have not done this, having the late 2006 C2D model, but I have taken many computers apart before. The most important thing to do when taking apart an Apple computer is to take a breath before opening and read before you pull!! Apple's line of computers are very tightly integrated - it will take vigilance and determination, but it is very possible to do such a repair. I've done several similar procedures, and so can you. Be sure not to bend the pins on the CPU. I cannot stress the importance of reading ahead and staying chill. If you maintain your cool, you'll have no problems.
"Hi guys, don't know if this thread is still active but I upgraded my 2006 Intel iMac a few years ago. By changing CPU *and* BIOS/firmware I've been able to use 4Gb RAM, and machine now registers as iMac5.1 (formerly 4.1). if you're up to pulling stuff apart then definitely do it. Maximum OS X is still Snow Lep though.
(I used a CPU from a PC laptop - maybe T7200; 2.0Ghz anyway. )"
"So after the third tear down, (which I can now do blindfolded by th way) I put the new processor in (model t7600 2.33ghz) the computer fired right up. I was relieved to now I had not damaged this bad boy that has served me very well for the past 4 years!
So the chip I originally tried was the t5850 2.16ghz. The first had some bent pins when I got it so I thought that was the issue. I reordered the same chip because it was cheap and that gave the same results, one blink and no power.
The computer is a lot faster and also the SSD I put in makes a big difference.
Now you will have to remember this is a simple mechanical thing, meaning that the ""Pins"" {I place in quotes because these are not actual PINS, they are a much more advanced system that simply applies mechanical pressure onto the gold contact, rather than the traditional socket/pin used in so many other models, both before & after.} will line up properly & make good contact unless they are disturbed or tarnished.
This being said, the next issue you should encounter {at least with the CPU}, will be the power. Since greater processing power, requires a greater amount of power to ensure a properly functioning state. Most CPUs will simply fail to operate. Here's a ""Short List"" that includes voltages & L2 caching limitations.
https://en.wikipedia.org/wiki/List_of_In...
Since this is NOT the only issue you will encounter, I'll let you digest the list first. However, you WILL also need to understand that the original power supply in that [4.1] ""Maybe"" modified. Although you are NOT going to be able to change the specific connector that it uses without some serious work. The BIGGEST issue that you will encounter is the Heat generated by all those additional transistors (although, these transistors actually exist in later models, they are disabled or ""Defrocked"" segments of the CPUs internal structure).
Now the OEM 3300 series Capacitors will NOT take this additional load for an extended period of time. So don't get too excited if you find yourself exceeding the proper spec's & thinking you've got it made. Those cap's WILL overhead/overload & burst. There are options out these (if you'd like to go into that, I may have a suggestion of two) which may be attempted, if you have the proper tools & skills.
The last thing is to consider the ComboDrive, it will have to be upgraded to a Dual Layer drive to accept the proper upgrade disk. Again, there ARE other ways around this, but, this will stop you dead in your tracks.
~Hope this helps~
However, if I have misunderstood your question, well, nevermind :)"
