Hi! I wrote several days ago that my MBP won't boot, I took it to the service, they could't boot it, so they don't know if it's because of the nVidia 8600M GT, but they were sure the problem is with the logic board nevertheless. My question is, can I get a logic board with faster processor and more video ram installed instead of mine? So now, my non working MBP has 2.4 GHz, 256 VRAM, and the logic board number is 661-4960 PCBA, MLB, 2.4 GHZ, REV2. As i searched google, I came up 661-4962 PCBA, MLB, 2.6 GHZ, REV2 logic board, which it says is for the same early 2008 model, but with better CPU and 512 VRAM. I'm gonna get a new logic board, might as well upgrade it if there's a possibility. The guy in the service told me, technically it's possible, however, temperature sensors are in different places in the different places and computer won't work alright. So if anyone's done it, I'd be happy to hear opinions!