Hi, I want to give my iMac i3 an upgrade to i5 or i7 processor. I've red some posts of some people who tried several combinations. Some combinations worked, some didn't. The CPU's that didn't work were the CPU's with a TDP of 95W. The i5 CPU's that have been tried out and worked were the CPU's with a TDP of 73W. My big question is; There are several CPU's with a TDP of 82W like the i5 750S/i7 860S/i7 870S. Will those CPU's work? I can't find any information on the web with these specific CPU's.... The TDP is ±9W higher then the standard i3.. Thanks.