Does strong AI disprove physicalism?

This question is motivated by a comment to an answer I provided to another question about John Searle and the Chinese Room Argument: What relevance, if any, does collective memory in ants have to John Searle's Chinese Room argument? I based my answer to this question on Searle's Minds, Brains and Programs. "But could something think, understand, and so on solely by virtue of being a computer with the right sort of program? Could instantiating a program, the right program of course, by itself be a sufficient condition of understanding?" This I think is the right question to ask, though it is usually confused with one or more of the earlier questions, and the answer to it is no.