|You can migrate the hard drive from one machine to the other. If they are identical the drive should also be bootable. |
To reinstall the processor you need to clean off all the thermal pad or paste and apply new thermal paste according to the method and amount for the type of processor you have. Take care not to scratch either surface. Use a solvent that leaves no residue to clean the surfaces.
See the link below for instructions on applying the paste. Thermal paste can be purchased at any computer shop or places like Bestbuy.
As DAVEINCAPS stated above, you may just need to reinstall the graphics drivers.
message edited by OtheHill