user: Question: What is the chipset in the Precision 340 model that has the Rambus memory and 400 or 533 FSB (MHz)?
Columns: ['Model', 'FSB (MHz)', 'Chipset', 'Memory', 'Graphics']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Precision 330', '400', 'Intel 850', 'Rambus', 'AGP']
SQL:

assistant: SELECT "Chipset" FROM "Table" WHERE "Memory" = 'Rambus' AND "FSB (MHz)" = '400 or 533' AND "Model" = 'Precision 340';