Table schema:
CREATE TABLE table_name_50 (fsb___ht__mhz_ VARCHAR, southbridge VARCHAR)

Question: What is the FSB / HT (MHz) when the Southbridge is amd-8131 amd-8132?
SQL: SELECT fsb___ht__mhz_ FROM table_name_50 WHERE southbridge = "amd-8131 amd-8132"