Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_16729930_11 (fsb VARCHAR, model_number VARCHAR)
### Question:
Name the fsb for atom z540
### Answer:
SELECT fsb FROM table_16729930_11 WHERE model_number = "Atom Z540"