Finished the install, no problem. before I even entered the bios the motherboard knew it had a pentium M in it and displayed it. I went in the BIOS and it was already all updated and ready to go, nothing to do in there. For laptops that are 3-4 years old and still working great, if you have a low processor, you may look in seeing what is the best chip it can handle and throw that in. The improvements have been marginal, but it was only 7 dollars plus some thermal grease.