You can then add fresh thermal paste to the replacement processor (thin layer).Ĭheck the orientation of the heat sink also because the new processor is not oriented the same way as the original and if you use the outline of the old processor on the heat sink as a guide you will have to take the heat sink back off and turn it 90 degrees so that the fins are oriented correctly. Also, the old thermal paste has to be worked off the new processor and heat sink a number of times using ArticClear remover and purifier. The heat sink is also "welded" on to the old processor so be patient while you persuade the two to break apart. The plastic barbs break off easily so you will want to get plastic screws and bolts ahead of time to replace the brittle posts that you break (I broke two of the four). Go slow because it's tricky getting the heat sink off the processor and back on with the four plastic posts and springs holding down the heat sink. ![]() ![]() Yes, you can upgrade the core duo or core solo processors and install Lion OS (10.7).
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