CREATE TABLE table_29207 ("Model" TEXT, "Speed  ( GHz ) " TEXT, "L2 Cache  ( MB ) " FLOAT, "L3 Cache  ( MB ) " FLOAT, "FSB  ( MHz ) " FLOAT, "TDP  ( W ) " FLOAT)

How many different FSB are there for the 7140N model?
SELECT COUNT("FSB (MHz)") FROM table_29207 WHERE "Model" = '7140N'
SELECT COUNT("FSB (MHz)") FROM "table_29207" WHERE "Model" = '7140N'